organic compounds
Di-tert-butyl (2R,3R)-2-{[(2E)-3-(4-acetyloxy-3-methoxyphenyl)prop-2-enoyl]oxy}-3-hydroxybutanedioate
aSchool of Agriculture, Food and Wine, University of Adelaide, Waite Campus, PMB 1, Glen Osmond, SA 5064, Australia, bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and cChemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia
*Correspondence e-mail: edward.tiekink@gmail.com
In the title molecule, C24H32O10, one tert-butyl ester group is folded towards the central benzene ring while the other is directed away. The acetyl group is almost perpendicular to the benzene ring to which it is connected [C—C—O—C torsion angle = 90.4 (12)°]. The conformation about the ethene bond [1.313 (7) Å] is E. The atoms of the benzene ring and its attached ester group and part of the hydroxy tert-butyl ester side chain are disordered over two sets of sites in a 50:50 ratio. Linear supramolecular chains along the a axis mediated by hydroxy–carbonyl O—H⋯O hydrogen bonds feature in the crystal packing. The same H atom also partakes in an intramolecular O—H⋯O interaction.
Related literature
For background to the formation of the odorant 4-ethylguaiacol with relevance to the wine industry, see: Chatonnet et al. (1992); Hixson et al. (2012); Ong & Nagel (1978); Nagel & Wulf (1979); Zhao & Burke (1998). For the preparation and characterization of 1-O-acetyl ferulic acid; see: Zhao & Burke (1998); Hosoda et al. (2001).
Experimental
Crystal data
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Data collection: CrysAlis PRO (Agilent, 2010); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812002784/hb6612sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812002784/hb6612Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812002784/hb6612Isup3.cml
1-O-Acetyl ferulic acid was prepared using a method analogous to that previously described by Zhao and Burke (1998), and the characterization data matched that previously described (Hosoda et al., 2001). 1-O-Acetyl ferulic acid (0.16 g, 0.67 mmol) was heated under reflux in dry benzene (10 ml) containing thionyl chloride (1 ml, 13.77 mmol). After 5 h the mixture was allowed to cool to room temperature and then concentrated in vacuo. The crude residue was taken up in dry benzene (3 ml) and added drop-wise to a solution of di-tert-butyl L-tartrate (0.21 g, 0.79 mmol) in dry pyridine (3 ml), then stirred at ambient temperature overnight. The mixture was concentrated and pyridine azeotropically removed with toluene. Purification with δ: 7.70 (d, 1H, J = 16.0 Hz, H7), 7.12–7.11 (m, 2H, H3,5), 7.05 (d, 1H, J = 8.6 Hz, H6), 6.45 (d, 1H, J = 16.0 Hz, H8), 5.50 (d, 1H, J = 2.3 Hz, H2'), 4.68 (dd, 1H, J = 6.8 and 2.3 Hz, H3'), 3.87 (s, 3H, OCH3), 3.21 (d, 1H, J = 6.8 Hz, OH), 2.33 (s, 3H, OCOCH3), 1.51 (s, 9H, t-Bu4), 1.44 (s, 9H, tBu1). 13C NMR: (600 MHz, CDCl3) δ: 170.2 (C4'), 168.9 (OCOCH3), 165.9 (C1'), 165.5 (C9), 151.5 (C7), 145.9 (C2), 141.8 (C1), 133.2 (C4), 123.4 (C6), 121.8 (C5), 116.8 (C8), 111.3 (C3), 84.1 (C1(CH3)3), 83.5 (C4(CH3)3), 73.5 (C2'), 71.0 (C3'), 56.1 (OMe), 28.1 (C4(CH3)3), 28.0 (C1(CH3)3), 20.8 (OCOCH3). Calc. C 59.99, H 6.71, O 33.30. Anal. C24H32O10 for C 59.79, H 6.73, O 33.48.
(20% EtOAc/X4) and recrystallization from 30% EtOAc/X4 gave 154.0 mg (48%) of white crystals. M.pt 413.7–415.2 K. Rf (30% EtOAc/X4): 0.34 1H NMR: (600 MHz, CDCl3)Carbon- and oxygen bound H-atoms were placed in calculated positions [C—H 0.95 to 1.00 and O—H 0.84 Å; Uiso(H) 1.2 to 1.5Ueq(C,O)] and were included in the
in the riding model approximation. The molecule is disordered in some parts of the molecule. The disorder was treated as a 1:1 type of disorder. The aromatic rings were refined as rigid hexagons of 1.39 Å sides. For the disordered atoms, pairs of 1,2-related bond distances were restrained to within 0.01 Å of each other; these included atom—atomordered as well as atom—atomdisordered distances. The displacement parameters of the primed atoms were set to those of the unprimed ones, and the anisotropic displacement factors of the disordered atom atoms were restrained to be nearly isotropic. The two t-butyl groups are both ordered. However, the vibration of one of the four-carbon groups had to be tightly restrained to be nearly isotropic.Data collection: CrysAlis PRO (Agilent, 2010); cell
CrysAlis PRO (Agilent, 2010); data reduction: CrysAlis PRO (Agilent, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C24H32O10 | F(000) = 512 |
Mr = 480.50 | Dx = 1.280 Mg m−3 |
Monoclinic, P21 | Cu Kα radiation, λ = 1.54184 Å |
Hall symbol: P 2yb | Cell parameters from 5994 reflections |
a = 5.9894 (1) Å | θ = 4.2–74.3° |
b = 10.6483 (1) Å | µ = 0.84 mm−1 |
c = 19.6676 (2) Å | T = 100 K |
β = 96.324 (1)° | Block, colourless |
V = 1246.71 (3) Å3 | 0.30 × 0.25 × 0.20 mm |
Z = 2 |
Agilent SuperNova Dual diffractometer with an Atlas detector | 4800 independent reflections |
Radiation source: SuperNova (Cu) X-ray Source | 4762 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.011 |
Detector resolution: 10.4041 pixels mm-1 | θmax = 74.5°, θmin = 4.5° |
ω scan | h = −7→7 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | k = −13→12 |
Tmin = 0.736, Tmax = 1.000 | l = −16→24 |
7492 measured reflections |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.057 | w = 1/[σ2(Fo2) + (0.0976P)2 + 0.9408P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.159 | (Δ/σ)max < 0.001 |
S = 1.04 | Δρmax = 0.56 e Å−3 |
4800 reflections | Δρmin = −0.56 e Å−3 |
326 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
113 restraints | Extinction coefficient: 0.0092 (14) |
Primary atom site location: structure-invariant direct methods | Absolute structure: Flack (1983), 2185 Friedel pairs |
Secondary atom site location: difference Fourier map | Absolute structure parameter: 0.0 (2) |
C24H32O10 | V = 1246.71 (3) Å3 |
Mr = 480.50 | Z = 2 |
Monoclinic, P21 | Cu Kα radiation |
a = 5.9894 (1) Å | µ = 0.84 mm−1 |
b = 10.6483 (1) Å | T = 100 K |
c = 19.6676 (2) Å | 0.30 × 0.25 × 0.20 mm |
β = 96.324 (1)° |
Agilent SuperNova Dual diffractometer with an Atlas detector | 4800 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | 4762 reflections with I > 2σ(I) |
Tmin = 0.736, Tmax = 1.000 | Rint = 0.011 |
7492 measured reflections |
R[F2 > 2σ(F2)] = 0.057 | H-atom parameters constrained |
wR(F2) = 0.159 | Δρmax = 0.56 e Å−3 |
S = 1.04 | Δρmin = −0.56 e Å−3 |
4800 reflections | Absolute structure: Flack (1983), 2185 Friedel pairs |
326 parameters | Absolute structure parameter: 0.0 (2) |
113 restraints |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
O7 | 0.4371 (4) | 0.5005 (2) | −0.08067 (10) | 0.0278 (5) | |
O9 | 0.6166 (4) | 0.3370 (2) | −0.16084 (11) | 0.0328 (5) | |
O11 | 0.4029 (4) | 0.1948 (2) | −0.11472 (11) | 0.0292 (5) | |
O22 | 1.3631 (4) | 0.6050 (2) | 0.41763 (10) | 0.0310 (5) | |
O26 | 1.0669 (4) | 0.2356 (2) | 0.32468 (11) | 0.0347 (5) | |
O29 | 1.2096 (4) | 0.7128 (2) | 0.32469 (12) | 0.0397 (6) | |
C8 | 0.3467 (6) | 0.5990 (3) | −0.04224 (16) | 0.0336 (7) | |
H8A | 0.2064 | 0.6296 | −0.0671 | 0.050* | |
H8B | 0.4550 | 0.6681 | −0.0359 | 0.050* | |
H8C | 0.3167 | 0.5667 | 0.0025 | 0.050* | |
C10 | 0.4462 (5) | 0.2526 (3) | −0.16343 (14) | 0.0242 (6) | |
C19 | 0.3237 (7) | 0.2434 (4) | −0.23373 (16) | 0.0424 (8) | |
H19A | 0.2985 | 0.1548 | −0.2458 | 0.064* | |
H19B | 0.4135 | 0.2828 | −0.2666 | 0.064* | |
H19C | 0.1788 | 0.2865 | −0.2349 | 0.064* | |
C16 | 1.1830 (5) | 0.4859 (3) | 0.33031 (14) | 0.0276 (6) | |
H16 | 1.3204 | 0.4323 | 0.3387 | 0.033* | 0.50 |
H16' | 1.3135 | 0.4291 | 0.3258 | 0.033* | 0.50 |
C17 | 1.0120 (6) | 0.4317 (3) | 0.3743 (2) | 0.0398 (8) | |
H17 | 1.1049 | 0.4023 | 0.4167 | 0.048* | 0.50 |
H17' | 1.0675 | 0.4238 | 0.4240 | 0.048* | 0.50 |
C21 | 1.2513 (5) | 0.6166 (3) | 0.35547 (15) | 0.0281 (6) | |
C23 | 1.4332 (6) | 0.7160 (3) | 0.46048 (15) | 0.0288 (6) | |
C24 | 1.5891 (5) | 0.7998 (3) | 0.42441 (15) | 0.0307 (6) | |
H24A | 1.5054 | 0.8372 | 0.3838 | 0.046* | |
H24B | 1.7137 | 0.7496 | 0.4107 | 0.046* | |
H24C | 1.6486 | 0.8666 | 0.4556 | 0.046* | |
C27 | 1.0144 (9) | 0.1107 (4) | 0.29275 (19) | 0.0545 (11) | |
C28 | 1.2436 (10) | 0.0608 (4) | 0.2822 (3) | 0.0677 (13) | |
H28A | 1.3319 | 0.0486 | 0.3266 | 0.102* | |
H28B | 1.3203 | 0.1210 | 0.2550 | 0.102* | |
H28C | 1.2275 | −0.0197 | 0.2579 | 0.102* | |
C30 | 1.5590 (6) | 0.6561 (3) | 0.52404 (16) | 0.0350 (7) | |
H30A | 1.6931 | 0.6130 | 0.5115 | 0.052* | |
H30B | 1.4609 | 0.5953 | 0.5435 | 0.052* | |
H30C | 1.6036 | 0.7214 | 0.5579 | 0.052* | |
C31 | 1.2248 (6) | 0.7844 (3) | 0.47798 (18) | 0.0377 (7) | |
H31A | 1.1468 | 0.8215 | 0.4364 | 0.057* | |
H31B | 1.2684 | 0.8509 | 0.5112 | 0.057* | |
H31C | 1.1248 | 0.7249 | 0.4976 | 0.057* | |
C33 | 0.8689 (11) | 0.1311 (6) | 0.2251 (2) | 0.0820 (18) | |
H33A | 0.9517 | 0.1817 | 0.1946 | 0.123* | |
H33B | 0.7308 | 0.1751 | 0.2335 | 0.123* | |
H33C | 0.8306 | 0.0497 | 0.2037 | 0.123* | |
C34 | 0.9014 (10) | 0.0297 (4) | 0.3424 (2) | 0.0612 (12) | |
H34A | 1.0038 | 0.0178 | 0.3843 | 0.092* | |
H34B | 0.8635 | −0.0521 | 0.3214 | 0.092* | |
H34C | 0.7640 | 0.0712 | 0.3536 | 0.092* | |
C25 | 0.9092 (6) | 0.3113 (4) | 0.34205 (19) | 0.0426 (9) | |
O15 | 1.1121 (8) | 0.4798 (6) | 0.2571 (3) | 0.0228 (10) | 0.50 |
O18 | 0.8662 (8) | 0.5278 (4) | 0.3987 (3) | 0.0307 (7) | 0.50 |
H18 | 0.7365 | 0.4983 | 0.3996 | 0.046* | 0.50 |
O20 | 1.4905 (9) | 0.4773 (6) | 0.2372 (3) | 0.0428 (11) | 0.50 |
O32 | 0.7017 (9) | 0.3148 (6) | 0.3472 (3) | 0.0330 (11) | 0.50 |
C5 | 0.9150 (8) | 0.4130 (9) | 0.0399 (2) | 0.0257 (15) | 0.50 |
C6 | 0.7206 (15) | 0.4724 (12) | 0.0112 (5) | 0.0288 (12) | 0.50 |
H6 | 0.6447 | 0.5298 | 0.0376 | 0.035* | 0.50 |
C1 | 0.637 (2) | 0.4479 (19) | −0.0563 (5) | 0.0238 (10) | 0.50 |
C2 | 0.748 (2) | 0.3639 (18) | −0.0950 (4) | 0.0208 (17) | 0.50 |
C3 | 0.9427 (17) | 0.3045 (11) | −0.0662 (4) | 0.0312 (15) | 0.50 |
H3 | 1.0185 | 0.2471 | −0.0926 | 0.037* | 0.50 |
C4 | 1.0261 (11) | 0.3290 (9) | 0.0013 (3) | 0.0329 (17) | 0.50 |
H4 | 1.1590 | 0.2884 | 0.0209 | 0.039* | 0.50 |
C12 | 0.9996 (9) | 0.4465 (5) | 0.1183 (3) | 0.0235 (9) | 0.50 |
H12 | 0.8911 | 0.4701 | 0.1477 | 0.028* | 0.50 |
C13 | 1.2118 (9) | 0.4426 (6) | 0.1434 (3) | 0.0247 (8) | 0.50 |
H13 | 1.3169 | 0.4233 | 0.1121 | 0.030* | 0.50 |
C14 | 1.3058 (13) | 0.4652 (7) | 0.2160 (3) | 0.0211 (10) | 0.50 |
O15' | 1.0409 (8) | 0.5056 (6) | 0.2672 (3) | 0.0228 (10) | 0.50 |
O18' | 0.8121 (7) | 0.5086 (4) | 0.3612 (3) | 0.0307 (7) | 0.50 |
H18' | 0.6982 | 0.4653 | 0.3667 | 0.046* | 0.50 |
O20' | 1.3768 (11) | 0.4694 (8) | 0.2179 (4) | 0.0428 (11) | 0.50 |
O32' | 0.7143 (9) | 0.2721 (6) | 0.3262 (3) | 0.0330 (11) | 0.50 |
C5' | 0.9726 (8) | 0.4098 (9) | 0.0235 (2) | 0.0257 (15) | 0.50 |
C6' | 0.7657 (16) | 0.4690 (12) | 0.0099 (5) | 0.0288 (12) | 0.50 |
H6' | 0.7173 | 0.5273 | 0.0418 | 0.035* | 0.50 |
C1' | 0.6298 (18) | 0.4431 (19) | −0.0504 (6) | 0.0238 (10) | 0.50 |
C2' | 0.7007 (19) | 0.3579 (18) | −0.0971 (5) | 0.0208 (17) | 0.50 |
C3' | 0.9076 (17) | 0.2987 (11) | −0.0835 (4) | 0.0312 (15) | 0.50 |
H3' | 0.9561 | 0.2405 | −0.1154 | 0.037* | 0.50 |
C4' | 1.0436 (11) | 0.3246 (9) | −0.0232 (3) | 0.0329 (17) | 0.50 |
H4' | 1.1850 | 0.2841 | −0.0139 | 0.039* | 0.50 |
C12' | 1.0951 (9) | 0.4272 (5) | 0.0934 (3) | 0.0235 (9) | 0.50 |
H12' | 1.2474 | 0.4006 | 0.0988 | 0.028* | 0.50 |
C13' | 1.0193 (11) | 0.4750 (6) | 0.1491 (3) | 0.0247 (8) | 0.50 |
H13' | 0.8696 | 0.5049 | 0.1482 | 0.030* | 0.50 |
C14' | 1.1755 (11) | 0.4797 (6) | 0.2121 (3) | 0.0211 (10) | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
O7 | 0.0346 (10) | 0.0278 (10) | 0.0191 (9) | 0.0055 (9) | −0.0054 (7) | −0.0043 (8) |
O9 | 0.0478 (12) | 0.0274 (11) | 0.0254 (10) | −0.0106 (10) | 0.0145 (9) | −0.0049 (8) |
O11 | 0.0318 (10) | 0.0317 (11) | 0.0233 (10) | −0.0058 (9) | −0.0012 (8) | 0.0043 (9) |
O22 | 0.0488 (12) | 0.0215 (10) | 0.0205 (10) | −0.0008 (9) | −0.0068 (8) | 0.0014 (8) |
O26 | 0.0441 (13) | 0.0264 (11) | 0.0310 (11) | −0.0172 (9) | −0.0076 (9) | 0.0017 (9) |
O29 | 0.0428 (13) | 0.0344 (13) | 0.0372 (12) | −0.0119 (10) | −0.0169 (10) | 0.0191 (10) |
C8 | 0.0429 (17) | 0.0298 (16) | 0.0265 (14) | 0.0091 (14) | −0.0031 (12) | −0.0054 (12) |
C10 | 0.0298 (14) | 0.0209 (13) | 0.0223 (13) | 0.0043 (11) | 0.0047 (10) | −0.0010 (11) |
C19 | 0.069 (2) | 0.0356 (18) | 0.0203 (14) | 0.0014 (17) | −0.0026 (14) | 0.0006 (13) |
C16 | 0.0322 (14) | 0.0292 (15) | 0.0193 (13) | −0.0102 (12) | −0.0072 (11) | 0.0050 (11) |
C17 | 0.0406 (18) | 0.0251 (16) | 0.056 (2) | 0.0031 (14) | 0.0179 (15) | 0.0153 (15) |
C21 | 0.0253 (13) | 0.0311 (15) | 0.0262 (14) | −0.0063 (12) | −0.0051 (10) | 0.0077 (13) |
C23 | 0.0421 (16) | 0.0189 (13) | 0.0248 (14) | −0.0024 (12) | 0.0000 (11) | 0.0002 (11) |
C24 | 0.0353 (15) | 0.0263 (15) | 0.0299 (15) | 0.0005 (12) | 0.0019 (11) | 0.0065 (12) |
C27 | 0.092 (3) | 0.0381 (18) | 0.0305 (17) | −0.038 (2) | −0.0078 (18) | −0.0010 (15) |
C28 | 0.111 (4) | 0.040 (2) | 0.056 (2) | −0.019 (2) | 0.025 (2) | −0.0203 (19) |
C30 | 0.056 (2) | 0.0237 (14) | 0.0226 (15) | −0.0055 (14) | −0.0075 (13) | 0.0000 (12) |
C31 | 0.0429 (17) | 0.0308 (17) | 0.0406 (18) | −0.0026 (14) | 0.0105 (14) | −0.0017 (14) |
C33 | 0.121 (4) | 0.083 (3) | 0.036 (2) | −0.070 (3) | −0.017 (2) | 0.015 (2) |
C34 | 0.099 (3) | 0.047 (2) | 0.0349 (18) | −0.040 (2) | −0.0053 (18) | 0.0038 (16) |
C25 | 0.0330 (16) | 0.045 (2) | 0.0472 (19) | −0.0140 (15) | −0.0096 (13) | 0.0300 (17) |
O15 | 0.019 (3) | 0.027 (3) | 0.0207 (17) | −0.0050 (19) | −0.0049 (17) | 0.0026 (15) |
O18 | 0.0330 (17) | 0.0225 (15) | 0.036 (2) | −0.0023 (13) | 0.0025 (16) | −0.0022 (16) |
O20 | 0.025 (2) | 0.063 (2) | 0.039 (2) | −0.010 (3) | −0.0039 (18) | 0.009 (2) |
O32 | 0.0285 (13) | 0.029 (3) | 0.040 (3) | −0.0141 (19) | −0.0021 (17) | 0.0005 (19) |
C5 | 0.013 (3) | 0.0270 (18) | 0.037 (3) | −0.012 (3) | 0.001 (2) | 0.011 (3) |
C6 | 0.033 (3) | 0.0180 (15) | 0.0315 (16) | −0.002 (2) | −0.0128 (19) | 0.0007 (12) |
C1 | 0.0289 (15) | 0.0196 (16) | 0.0222 (19) | −0.0039 (13) | 0.0000 (14) | 0.0016 (17) |
C2 | 0.008 (5) | 0.0230 (19) | 0.0321 (16) | −0.011 (4) | 0.0036 (16) | −0.0013 (12) |
C3 | 0.017 (3) | 0.0249 (18) | 0.049 (4) | −0.006 (2) | −0.008 (3) | −0.004 (3) |
C4 | 0.0279 (18) | 0.0281 (19) | 0.042 (5) | −0.0003 (16) | 0.001 (3) | 0.008 (4) |
C12 | 0.014 (2) | 0.0207 (19) | 0.036 (3) | 0.0019 (16) | 0.0043 (15) | 0.0121 (18) |
C13 | 0.0324 (18) | 0.028 (2) | 0.0122 (16) | −0.0036 (16) | −0.0053 (15) | −0.0027 (15) |
C14 | 0.029 (3) | 0.0229 (19) | 0.0102 (16) | −0.012 (3) | −0.002 (3) | 0.0026 (14) |
O15' | 0.019 (3) | 0.027 (3) | 0.0207 (17) | −0.0050 (19) | −0.0049 (17) | 0.0026 (15) |
O18' | 0.0330 (17) | 0.0225 (15) | 0.036 (2) | −0.0023 (13) | 0.0025 (16) | −0.0022 (16) |
O20' | 0.025 (2) | 0.063 (2) | 0.039 (2) | −0.010 (3) | −0.0039 (18) | 0.009 (2) |
O32' | 0.0285 (13) | 0.029 (3) | 0.040 (3) | −0.0141 (19) | −0.0021 (17) | 0.0005 (19) |
C5' | 0.013 (3) | 0.0270 (18) | 0.037 (3) | −0.012 (3) | 0.001 (2) | 0.011 (3) |
C6' | 0.033 (3) | 0.0180 (15) | 0.0315 (16) | −0.002 (2) | −0.0128 (19) | 0.0007 (12) |
C1' | 0.0289 (15) | 0.0196 (16) | 0.0222 (19) | −0.0039 (13) | 0.0000 (14) | 0.0016 (17) |
C2' | 0.008 (5) | 0.0230 (19) | 0.0321 (16) | −0.011 (4) | 0.0036 (16) | −0.0013 (12) |
C3' | 0.017 (3) | 0.0249 (18) | 0.049 (4) | −0.006 (2) | −0.008 (3) | −0.004 (3) |
C4' | 0.0279 (18) | 0.0281 (19) | 0.042 (5) | −0.0003 (16) | 0.001 (3) | 0.008 (4) |
C12' | 0.014 (2) | 0.0207 (19) | 0.036 (3) | 0.0019 (16) | 0.0043 (15) | 0.0121 (18) |
C13' | 0.0324 (18) | 0.028 (2) | 0.0122 (16) | −0.0036 (16) | −0.0053 (15) | −0.0027 (15) |
C14' | 0.029 (3) | 0.0229 (19) | 0.0102 (16) | −0.012 (3) | −0.002 (3) | 0.0026 (14) |
O7—C1 | 1.361 (5) | C31—H31A | 0.9800 |
O7—C1' | 1.381 (6) | C31—H31B | 0.9800 |
O7—C8 | 1.434 (4) | C31—H31C | 0.9800 |
O9—C2' | 1.318 (6) | C33—H33A | 0.9800 |
O9—C10 | 1.357 (4) | C33—H33B | 0.9800 |
O9—C2 | 1.468 (5) | C33—H33C | 0.9800 |
O11—C10 | 1.191 (4) | C34—H34A | 0.9800 |
O22—C21 | 1.333 (3) | C34—H34B | 0.9800 |
O22—C23 | 1.485 (4) | C34—H34C | 0.9800 |
O26—C25 | 1.316 (5) | C25—O32' | 1.247 (6) |
O26—C27 | 1.489 (4) | C25—O32 | 1.258 (6) |
O29—C21 | 1.202 (4) | O15—C14 | 1.494 (8) |
C8—H8A | 0.9800 | O18—H18 | 0.8400 |
C8—H8B | 0.9800 | O20—C14 | 1.146 (9) |
C8—H8C | 0.9800 | C5—C6 | 1.3900 |
C10—C19 | 1.495 (4) | C5—C4 | 1.3900 |
C19—H19A | 0.9800 | C5—C12 | 1.608 (7) |
C19—H19B | 0.9800 | C6—C1 | 1.3900 |
C19—H19C | 0.9800 | C6—H6 | 0.9500 |
C16—O15' | 1.441 (5) | C1—C2 | 1.3900 |
C16—O15 | 1.457 (5) | C2—C3 | 1.3900 |
C16—C21 | 1.519 (4) | C3—C4 | 1.3900 |
C16—C17 | 1.525 (4) | C3—H3 | 0.9500 |
C16—H16 | 1.0000 | C4—H4 | 0.9500 |
C16—H16' | 1.0000 | C12—C13 | 1.313 (7) |
C17—O18' | 1.450 (5) | C12—H12 | 0.9500 |
C17—O18 | 1.460 (5) | C13—C14 | 1.495 (7) |
C17—C25 | 1.530 (6) | C13—H13 | 0.9500 |
C17—H17 | 1.0000 | O15'—C14' | 1.447 (7) |
C17—H17' | 1.0000 | O18'—H18' | 0.8400 |
C23—C31 | 1.517 (5) | O20'—C14' | 1.203 (9) |
C23—C24 | 1.523 (4) | C5'—C6' | 1.3900 |
C23—C30 | 1.526 (4) | C5'—C4' | 1.3900 |
C24—H24A | 0.9800 | C5'—C12' | 1.497 (6) |
C24—H24B | 0.9800 | C6'—C1' | 1.3900 |
C24—H24C | 0.9800 | C6'—H6' | 0.9500 |
C27—C28 | 1.508 (8) | C1'—C2' | 1.3900 |
C27—C34 | 1.517 (5) | C2'—C3' | 1.3900 |
C27—C33 | 1.524 (6) | C3'—C4' | 1.3900 |
C28—H28A | 0.9800 | C3'—H3' | 0.9500 |
C28—H28B | 0.9800 | C4'—H4' | 0.9500 |
C28—H28C | 0.9800 | C12'—C13' | 1.333 (7) |
C30—H30A | 0.9800 | C12'—H12' | 0.9500 |
C30—H30B | 0.9800 | C13'—C14' | 1.468 (7) |
C30—H30C | 0.9800 | C13'—H13' | 0.9500 |
C1—O7—C8 | 119.0 (6) | C23—C31—H31B | 109.5 |
C1'—O7—C8 | 116.3 (5) | H31A—C31—H31B | 109.5 |
C2'—O9—C10 | 110.8 (9) | C23—C31—H31C | 109.5 |
C10—O9—C2 | 119.4 (8) | H31A—C31—H31C | 109.5 |
C21—O22—C23 | 121.9 (2) | H31B—C31—H31C | 109.5 |
C25—O26—C27 | 122.2 (3) | C27—C33—H33A | 109.5 |
O7—C8—H8A | 109.5 | C27—C33—H33B | 109.5 |
O7—C8—H8B | 109.5 | H33A—C33—H33B | 109.5 |
H8A—C8—H8B | 109.5 | C27—C33—H33C | 109.5 |
O7—C8—H8C | 109.5 | H33A—C33—H33C | 109.5 |
H8A—C8—H8C | 109.5 | H33B—C33—H33C | 109.5 |
H8B—C8—H8C | 109.5 | C27—C34—H34A | 109.5 |
O11—C10—O9 | 122.8 (3) | C27—C34—H34B | 109.5 |
O11—C10—C19 | 125.6 (3) | H34A—C34—H34B | 109.5 |
O9—C10—C19 | 111.6 (3) | C27—C34—H34C | 109.5 |
C10—C19—H19A | 109.5 | H34A—C34—H34C | 109.5 |
C10—C19—H19B | 109.5 | H34B—C34—H34C | 109.5 |
H19A—C19—H19B | 109.5 | O32'—C25—O26 | 114.1 (4) |
C10—C19—H19C | 109.5 | O32—C25—O26 | 141.5 (4) |
H19A—C19—H19C | 109.5 | O32'—C25—C17 | 135.1 (5) |
H19B—C19—H19C | 109.5 | O32—C25—C17 | 107.3 (4) |
O15'—C16—C21 | 105.1 (3) | O26—C25—C17 | 110.7 (3) |
O15—C16—C21 | 113.7 (4) | C16—O15—C14 | 112.4 (4) |
O15'—C16—C17 | 100.0 (3) | C17—O18—H18 | 109.5 |
O15—C16—C17 | 113.8 (3) | C6—C5—C4 | 120.0 |
C21—C16—C17 | 109.6 (3) | C6—C5—C12 | 116.8 (6) |
O15'—C16—H16 | 128.5 | C4—C5—C12 | 123.2 (6) |
O15—C16—H16 | 106.4 | C5—C6—C1 | 120.0 |
C21—C16—H16 | 106.4 | C5—C6—H6 | 120.0 |
C17—C16—H16 | 106.4 | C1—C6—H6 | 120.0 |
O15'—C16—H16' | 113.8 | O7—C1—C2 | 121.8 (8) |
O15—C16—H16' | 91.7 | O7—C1—C6 | 117.9 (7) |
C21—C16—H16' | 113.5 | C2—C1—C6 | 120.0 |
C17—C16—H16' | 113.7 | C1—C2—C3 | 120.0 |
O18'—C17—C16 | 106.2 (3) | C1—C2—O9 | 111.4 (7) |
O18—C17—C16 | 112.6 (3) | C3—C2—O9 | 127.9 (8) |
O18'—C17—C25 | 96.5 (3) | C4—C3—C2 | 120.0 |
O18—C17—C25 | 119.7 (3) | C4—C3—H3 | 120.0 |
C16—C17—C25 | 110.3 (3) | C2—C3—H3 | 120.0 |
O18'—C17—H17 | 134.3 | C3—C4—C5 | 120.0 |
O18—C17—H17 | 104.2 | C3—C4—H4 | 120.0 |
C16—C17—H17 | 104.2 | C5—C4—H4 | 120.0 |
C25—C17—H17 | 104.2 | C13—C12—C5 | 122.9 (6) |
O18'—C17—H17' | 113.6 | C13—C12—H12 | 118.6 |
O18—C17—H17' | 83.4 | C5—C12—H12 | 118.6 |
C16—C17—H17' | 114.5 | C12—C13—C14 | 127.0 (6) |
C25—C17—H17' | 114.2 | C12—C13—H13 | 116.5 |
O29—C21—O22 | 126.6 (3) | C14—C13—H13 | 116.5 |
O29—C21—C16 | 125.7 (3) | O20—C14—O15 | 124.5 (6) |
O22—C21—C16 | 107.7 (2) | O20—C14—C13 | 127.8 (6) |
O22—C23—C31 | 108.8 (3) | O15—C14—C13 | 107.5 (6) |
O22—C23—C24 | 110.6 (2) | C16—O15'—C14' | 107.0 (4) |
C31—C23—C24 | 112.7 (3) | C17—O18'—H18' | 109.5 |
O22—C23—C30 | 102.5 (2) | C6'—C5'—C4' | 120.0 |
C31—C23—C30 | 111.0 (3) | C6'—C5'—C12' | 117.2 (5) |
C24—C23—C30 | 110.7 (3) | C4'—C5'—C12' | 122.2 (6) |
C23—C24—H24A | 109.5 | C1'—C6'—C5' | 120.0 |
C23—C24—H24B | 109.5 | C1'—C6'—H6' | 120.0 |
H24A—C24—H24B | 109.5 | C5'—C6'—H6' | 120.0 |
C23—C24—H24C | 109.5 | O7—C1'—C6' | 131.5 (8) |
H24A—C24—H24C | 109.5 | O7—C1'—C2' | 107.8 (8) |
H24B—C24—H24C | 109.5 | C6'—C1'—C2' | 120.0 |
O26—C27—C28 | 102.7 (3) | O9—C2'—C3' | 110.2 (8) |
O26—C27—C34 | 108.9 (3) | O9—C2'—C1' | 128.8 (8) |
C28—C27—C34 | 111.5 (4) | C3'—C2'—C1' | 120.0 |
O26—C27—C33 | 108.3 (4) | C2'—C3'—C4' | 120.0 |
C28—C27—C33 | 111.8 (4) | C2'—C3'—H3' | 120.0 |
C34—C27—C33 | 113.0 (4) | C4'—C3'—H3' | 120.0 |
C27—C28—H28A | 109.5 | C3'—C4'—C5' | 120.0 |
C27—C28—H28B | 109.5 | C3'—C4'—H4' | 120.0 |
H28A—C28—H28B | 109.5 | C5'—C4'—H4' | 120.0 |
C27—C28—H28C | 109.5 | C13'—C12'—C5' | 128.8 (5) |
H28A—C28—H28C | 109.5 | C13'—C12'—H12' | 115.6 |
H28B—C28—H28C | 109.5 | C5'—C12'—H12' | 115.6 |
C23—C30—H30A | 109.5 | C12'—C13'—C14' | 117.6 (6) |
C23—C30—H30B | 109.5 | C12'—C13'—H13' | 121.2 |
H30A—C30—H30B | 109.5 | C14'—C13'—H13' | 121.2 |
C23—C30—H30C | 109.5 | O20'—C14'—O15' | 125.5 (6) |
H30A—C30—H30C | 109.5 | O20'—C14'—C13' | 128.0 (6) |
H30B—C30—H30C | 109.5 | O15'—C14'—C13' | 106.4 (5) |
C23—C31—H31A | 109.5 | ||
C2'—O9—C10—O11 | −9.0 (7) | C6—C1—C2—C3 | 0.0 |
C2—O9—C10—O11 | −2.9 (7) | O7—C1—C2—O9 | −3.1 (9) |
C2'—O9—C10—C19 | 170.5 (6) | C6—C1—C2—O9 | 171.6 (14) |
C2—O9—C10—C19 | 176.6 (6) | C2'—O9—C2—C1 | −46 (8) |
O15'—C16—C17—O18' | −43.9 (4) | C10—O9—C2—C1 | −80.4 (7) |
O15—C16—C17—O18' | −62.3 (5) | C2'—O9—C2—C3 | 124 (9) |
C21—C16—C17—O18' | 66.2 (4) | C10—O9—C2—C3 | 90.4 (12) |
O15'—C16—C17—O18 | −77.0 (4) | C1—C2—C3—C4 | 0.0 |
O15—C16—C17—O18 | −95.5 (5) | O9—C2—C3—C4 | −170.1 (16) |
C21—C16—C17—O18 | 33.1 (4) | C2—C3—C4—C5 | 0.0 |
O15'—C16—C17—C25 | 59.5 (4) | C6—C5—C4—C3 | 0.0 |
O15—C16—C17—C25 | 41.1 (4) | C12—C5—C4—C3 | 179.9 (8) |
C21—C16—C17—C25 | 169.6 (2) | C6—C5—C12—C13 | −151.1 (8) |
C23—O22—C21—O29 | 6.2 (5) | C4—C5—C12—C13 | 29.1 (9) |
C23—O22—C21—C16 | −173.2 (3) | C5—C12—C13—C14 | −176.5 (7) |
O15'—C16—C21—O29 | −6.2 (5) | C16—O15—C14—O20 | −11.7 (10) |
O15—C16—C21—O29 | 15.7 (5) | C16—O15—C14—C13 | 172.4 (5) |
C17—C16—C21—O29 | −112.9 (4) | C12—C13—C14—O20 | −169.6 (8) |
O15'—C16—C21—O22 | 173.3 (3) | C12—C13—C14—O15 | 6.0 (9) |
O15—C16—C21—O22 | −164.8 (3) | O15—C16—O15'—C14' | −14.2 (10) |
C17—C16—C21—O22 | 66.6 (3) | C21—C16—O15'—C14' | 101.9 (5) |
C21—O22—C23—C31 | 64.2 (3) | C17—C16—O15'—C14' | −144.5 (5) |
C21—O22—C23—C24 | −60.1 (4) | C4'—C5'—C6'—C1' | 0.0 |
C21—O22—C23—C30 | −178.2 (3) | C12'—C5'—C6'—C1' | −171.2 (8) |
C25—O26—C27—C28 | 179.7 (3) | C1—O7—C1'—C6' | 114 (16) |
C25—O26—C27—C34 | −62.0 (5) | C8—O7—C1'—C6' | −5.3 (18) |
C25—O26—C27—C33 | 61.3 (5) | C1—O7—C1'—C2' | −56 (14) |
C27—O26—C25—O32' | −3.6 (5) | C8—O7—C1'—C2' | −175.5 (4) |
C27—O26—C25—O32 | 8.4 (8) | C5'—C6'—C1'—O7 | −169.2 (19) |
C27—O26—C25—C17 | 179.3 (3) | C5'—C6'—C1'—C2' | 0.0 |
O18'—C17—C25—O32' | −18.1 (7) | C10—O9—C2'—C3' | 105.5 (8) |
O18—C17—C25—O32' | 5.0 (7) | C2—O9—C2'—C3' | −43 (8) |
C16—C17—C25—O32' | −128.0 (6) | C10—O9—C2'—C1' | −86.2 (10) |
O18'—C17—C25—O32 | −27.7 (5) | C2—O9—C2'—C1' | 125 (9) |
O18—C17—C25—O32 | −4.6 (6) | O7—C1'—C2'—O9 | 4.3 (9) |
C16—C17—C25—O32 | −137.6 (4) | C6'—C1'—C2'—O9 | −167.3 (17) |
O18'—C17—C25—O26 | 158.2 (3) | O7—C1'—C2'—C3' | 171.5 (16) |
O18—C17—C25—O26 | −178.7 (3) | C6'—C1'—C2'—C3' | 0.0 |
C16—C17—C25—O26 | 48.3 (4) | O9—C2'—C3'—C4' | 169.5 (14) |
O15'—C16—O15—C14 | 155.9 (17) | C1'—C2'—C3'—C4' | 0.0 |
C21—C16—O15—C14 | 84.7 (6) | C2'—C3'—C4'—C5' | 0.0 |
C17—C16—O15—C14 | −148.9 (5) | C6'—C5'—C4'—C3' | 0.0 |
C4—C5—C6—C1 | 0.0 | C12'—C5'—C4'—C3' | 170.8 (8) |
C12—C5—C6—C1 | −179.9 (7) | C6'—C5'—C12'—C13' | 12.2 (11) |
C1'—O7—C1—C2 | 125 (15) | C4'—C5'—C12'—C13' | −158.8 (7) |
C8—O7—C1—C2 | −171.5 (5) | C5'—C12'—C13'—C14' | 179.1 (6) |
C1'—O7—C1—C6 | −49 (14) | C16—O15'—C14'—O20' | −13.8 (10) |
C8—O7—C1—C6 | 13.7 (15) | C16—O15'—C14'—C13' | 168.8 (5) |
C5—C6—C1—O7 | 174.9 (17) | C12'—C13'—C14'—O20' | 16.2 (11) |
C5—C6—C1—C2 | 0.0 | C12'—C13'—C14'—O15' | −166.5 (6) |
O7—C1—C2—C3 | −174.7 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
O18—H18···O32 | 0.84 | 2.21 | 2.631 (8) | 111 |
O18—H18···O22i | 0.84 | 2.57 | 3.185 (5) | 131 |
Symmetry code: (i) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C24H32O10 |
Mr | 480.50 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 100 |
a, b, c (Å) | 5.9894 (1), 10.6483 (1), 19.6676 (2) |
β (°) | 96.324 (1) |
V (Å3) | 1246.71 (3) |
Z | 2 |
Radiation type | Cu Kα |
µ (mm−1) | 0.84 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Agilent SuperNova Dual diffractometer with an Atlas detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2010) |
Tmin, Tmax | 0.736, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7492, 4800, 4762 |
Rint | 0.011 |
(sin θ/λ)max (Å−1) | 0.625 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.057, 0.159, 1.04 |
No. of reflections | 4800 |
No. of parameters | 326 |
No. of restraints | 113 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.56, −0.56 |
Absolute structure | Flack (1983), 2185 Friedel pairs |
Absolute structure parameter | 0.0 (2) |
Computer programs: CrysAlis PRO (Agilent, 2010), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
O18—H18···O32 | 0.84 | 2.21 | 2.631 (8) | 111 |
O18—H18···O22i | 0.84 | 2.57 | 3.185 (5) | 131 |
Symmetry code: (i) x−1, y, z. |
Footnotes
‡Additional correspondence author, e-mail: dennis.taylor@adelaide.edu.au.
Acknowledgements
This project was supported by the School of Agriculture, Food and Wine, the University of Adelaide, as well as by Australia's grape growers and winemakers through their investment body, the Grape and Wine Research and Development Corporation, with matching funds from the Australian Government. The Ministry of Higher Education (Malaysia) is thanked for funding structural studies through the High-Impact Research Scheme (grant No. UM·C/HIR/MOHE/SC/12).
References
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The breakdown of ferulic acid by D. bruxellensis to form the potent odorant 4-ethylguaiacol has been known for decades (Chatonnet et al., 1992). Recently, it has been found that the metabolism of the ethyl ester of ferulic acid by this yeast can also result in the accumulation of 4-ethylguaiacol (Hixson et al., 2012). Existing in both the grape berry and in wine in significant concentrations (Ong & Nagel, 1978; Nagel & Wulf, 1979), the feruloyl L-tartrate ester has the potential to contribute to the accumulation of 4-ethylguaiacol in finished wines and thus contribute further to the spoilage of wine. Synthesis of the known wine component feruloyl L-tartrate was achieved using di-tert-butyl L-tartrate and the 1-O-acetyl protected hydroxycinnamic acid in an analogous method to that described by Zhao & Burke (1998). The products of coupling were isolated and recrystallized from 30% ethyl acetate/hexane to afford a crystalline solid from which the structure was determined by X-ray crystallography to confirm the retention of the (R,R)-stereochemistry, Fig. 1.
The hydroxyl-H atom is bifurcated, forming an intramolecular O—H···O hydrogen bond with the adjacent carbonyl-O, Table, and an intermolecular O–H···O hydrogen bond with a translationally related carbonyl-O atom to form a linear supramolecular chain along the a axis, Fig. 1 and Table 1.