organic compounds
(2-Hydroxy-7-methoxynaphthalen-1-yl)(phenyl)methanone
aDepartment of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture & Technology, 2-24-16 Naka-machi, Koganei, Tokyo 184-8588, Japan
*Correspondence e-mail: yonezawa@cc.tuat.ac.jp
In the molecule of the title compound, C18H14O3, there is an intramolecular O—H⋯O=C hydrogen bond between the carbonyl and hydroxy groups on the naphthalene ring system. The angles between the C=O bond vector and the least-squares planes of the naphthalene ring system and the phenyl ring are 30.58 (6) and 42.82 (7)°, respectively, while the dihedral angle between the naphthalene ring system and the phenyl ring is 58.65 (5)°. In the crystal, molecules are connected by pairs of intermolecular O—H⋯O=C hydrogen bonds, forming centrosymmetric dimers.
Related literature
For closely related structures, see: Hijikata et al. (2010); Kato et al. (2010); Mitsui et al. (2009); Mitsui, Nakaema, Noguchi, Okamoto & Yonezawa (2008); Mitsui, Nakaema, Noguchi & Yonezawa (2008).
Experimental
Crystal data
|
Refinement
|
Data collection: PROCESS-AUTO (Rigaku, 1998); cell PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SIR2004 (Burla et al., 2005); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536810038547/is2606sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810038547/is2606Isup2.hkl
To a solution of 1-benzoyl-2,7-dimethoxynaphthalene (2.92 g, 10 mmol) in CH2Cl2 (100 ml) was added AlCl3 (6.65 g, 50 mmol). The reaction mixture was refluxed for 30 min giving a dark red solution, which was then poured into H2O (30 ml). The aqueous layer was extracted with CHCl3 (30 ml × 3). The combined organic layers were washed with brine (30 ml × 3), and dried over MgSO4 overnight. The solvent was removed in vacuo and the crude material was purified by recrystallization from hexane to give compound (I) as yellow platelets (m.p. 371.8–372.3 K, yield 1.45 g, 52%).
Spectroscopic Data: 1H NMR (300 MHz, CDCl3) δ 11.64 (s, 1H), 7.85 (d, 1H), 7.64–7.60 (m, 3H), 7.55 (tt, 1H), 7.43 (t, 2H) 7.08 (d, 1H), 6.89 (dd, 1H), 6.59 (d, 1H), 3.27 (s, 3H); 13C NMR (75 MHz, CDCl3) δ 200.8, 162.8, 158.2, 140.8, 136.5, 134.1, 132.3, 130.1, 129.14, 128.8, 123.7, 116.5, 115.9, 113.7, 106.5, 54.5; IR (KBr): 3446, 1617, 1572, 1511, 1200; HRMS (m/z): [M + H]+ calcd for C18H15O3, 279.1021; found, 279.0999.
All the H-atoms could be located in difference Fourier maps. The OH hydrogen atom was freely refined: O1—H1 = 0.92 (2) Å. The C-bound H-atoms were subsequently refined as riding atoms, with C—H = 0.95 (aromatic) and 0.98 (methyl) Å, and with Uiso(H) = 1.2Ueq(C).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell
PROCESS-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SIR2004 (Burla et al., 2005); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C18H14O3 | F(000) = 584 |
Mr = 278.29 | Dx = 1.362 Mg m−3 |
Monoclinic, P21/c | Melting point = 371.8–372.3 K |
Hall symbol: -P 2ybc | Cu Kα radiation, λ = 1.54187 Å |
a = 9.81012 (18) Å | Cell parameters from 19252 reflections |
b = 6.27891 (11) Å | θ = 4.0–68.2° |
c = 22.0737 (4) Å | µ = 0.75 mm−1 |
β = 93.167 (1)° | T = 193 K |
V = 1357.59 (4) Å3 | Block, yellow |
Z = 4 | 0.60 × 0.40 × 0.40 mm |
Rigaku R-AXIS RAPID diffractometer | 2496 independent reflections |
Radiation source: rotating anode | 2244 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
Detector resolution: 10.00 pixels mm-1 | θmax = 68.2°, θmin = 4.0° |
ω scans | h = −11→11 |
Absorption correction: numerical (NUMABS; Higashi, 1999) | k = −7→7 |
Tmin = 0.586, Tmax = 0.754 | l = −26→26 |
20565 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.036 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.103 | w = 1/[σ2(Fo2) + (0.0535P)2 + 0.3346P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max < 0.001 |
2496 reflections | Δρmax = 0.23 e Å−3 |
196 parameters | Δρmin = −0.16 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0146 (8) |
C18H14O3 | V = 1357.59 (4) Å3 |
Mr = 278.29 | Z = 4 |
Monoclinic, P21/c | Cu Kα radiation |
a = 9.81012 (18) Å | µ = 0.75 mm−1 |
b = 6.27891 (11) Å | T = 193 K |
c = 22.0737 (4) Å | 0.60 × 0.40 × 0.40 mm |
β = 93.167 (1)° |
Rigaku R-AXIS RAPID diffractometer | 2496 independent reflections |
Absorption correction: numerical (NUMABS; Higashi, 1999) | 2244 reflections with I > 2σ(I) |
Tmin = 0.586, Tmax = 0.754 | Rint = 0.038 |
20565 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.103 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.23 e Å−3 |
2496 reflections | Δρmin = −0.16 e Å−3 |
196 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'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 > σ(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 | ||
O1 | 0.37752 (10) | 0.17334 (19) | 0.46905 (5) | 0.0478 (3) | |
O2 | 0.84529 (10) | −0.02213 (17) | 0.22739 (4) | 0.0442 (3) | |
O3 | 0.57091 (10) | 0.44133 (17) | 0.45195 (5) | 0.0482 (3) | |
C1 | 0.55482 (12) | 0.1185 (2) | 0.39823 (5) | 0.0336 (3) | |
C2 | 0.43388 (13) | 0.0609 (2) | 0.42511 (6) | 0.0387 (3) | |
C3 | 0.36518 (14) | −0.1302 (3) | 0.40877 (7) | 0.0451 (4) | |
H3 | 0.2846 | −0.1684 | 0.4281 | 0.054* | |
C4 | 0.41359 (14) | −0.2593 (2) | 0.36562 (7) | 0.0431 (3) | |
H4 | 0.3685 | −0.3902 | 0.3564 | 0.052* | |
C5 | 0.53019 (13) | −0.2030 (2) | 0.33398 (6) | 0.0363 (3) | |
C6 | 0.57599 (14) | −0.3323 (2) | 0.28681 (6) | 0.0407 (3) | |
H6 | 0.5321 | −0.4647 | 0.2784 | 0.049* | |
C7 | 0.68125 (14) | −0.2718 (2) | 0.25323 (6) | 0.0401 (3) | |
H7 | 0.7113 | −0.3612 | 0.2219 | 0.048* | |
C8 | 0.74557 (13) | −0.0737 (2) | 0.26554 (6) | 0.0356 (3) | |
C9 | 0.70639 (13) | 0.0537 (2) | 0.31195 (6) | 0.0335 (3) | |
H9 | 0.7512 | 0.1860 | 0.3194 | 0.040* | |
C10 | 0.59982 (12) | −0.0095 (2) | 0.34895 (5) | 0.0322 (3) | |
C11 | 0.63086 (13) | 0.3022 (2) | 0.42425 (5) | 0.0341 (3) | |
C12 | 0.78243 (13) | 0.3247 (2) | 0.42242 (5) | 0.0327 (3) | |
C13 | 0.87010 (14) | 0.1539 (2) | 0.43450 (6) | 0.0383 (3) | |
H13 | 0.8342 | 0.0163 | 0.4417 | 0.046* | |
C14 | 1.01009 (14) | 0.1857 (2) | 0.43590 (7) | 0.0443 (4) | |
H14 | 1.0701 | 0.0698 | 0.4448 | 0.053* | |
C15 | 1.06297 (14) | 0.3852 (3) | 0.42446 (7) | 0.0469 (4) | |
H15 | 1.1590 | 0.4054 | 0.4246 | 0.056* | |
C16 | 0.97576 (15) | 0.5548 (2) | 0.41281 (7) | 0.0456 (4) | |
H16 | 1.0119 | 0.6917 | 0.4049 | 0.055* | |
C17 | 0.83608 (14) | 0.5257 (2) | 0.41259 (6) | 0.0392 (3) | |
H17 | 0.7766 | 0.6437 | 0.4057 | 0.047* | |
C18 | 0.92146 (16) | 0.1669 (3) | 0.24071 (8) | 0.0527 (4) | |
H18A | 0.9894 | 0.1867 | 0.2103 | 0.063* | |
H18B | 0.9679 | 0.1545 | 0.2810 | 0.063* | |
H18C | 0.8595 | 0.2894 | 0.2400 | 0.063* | |
H1 | 0.428 (2) | 0.296 (4) | 0.4744 (11) | 0.092 (8)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0369 (5) | 0.0601 (7) | 0.0471 (6) | 0.0032 (5) | 0.0080 (4) | −0.0043 (5) |
O2 | 0.0435 (5) | 0.0478 (6) | 0.0420 (5) | 0.0003 (4) | 0.0081 (4) | −0.0093 (4) |
O3 | 0.0490 (6) | 0.0453 (6) | 0.0514 (6) | 0.0042 (5) | 0.0132 (5) | −0.0117 (5) |
C1 | 0.0324 (6) | 0.0356 (7) | 0.0322 (6) | 0.0041 (5) | −0.0032 (5) | 0.0025 (5) |
C2 | 0.0322 (6) | 0.0468 (8) | 0.0367 (7) | 0.0046 (6) | −0.0011 (5) | 0.0032 (6) |
C3 | 0.0328 (7) | 0.0543 (9) | 0.0480 (8) | −0.0039 (6) | 0.0004 (6) | 0.0071 (7) |
C4 | 0.0377 (7) | 0.0415 (8) | 0.0489 (8) | −0.0063 (6) | −0.0083 (6) | 0.0064 (6) |
C5 | 0.0349 (6) | 0.0344 (7) | 0.0384 (7) | 0.0014 (5) | −0.0089 (5) | 0.0028 (5) |
C6 | 0.0409 (7) | 0.0329 (7) | 0.0466 (8) | −0.0003 (6) | −0.0116 (6) | −0.0035 (6) |
C7 | 0.0422 (7) | 0.0368 (7) | 0.0402 (7) | 0.0069 (6) | −0.0075 (6) | −0.0092 (6) |
C8 | 0.0334 (6) | 0.0389 (7) | 0.0340 (6) | 0.0055 (5) | −0.0030 (5) | −0.0017 (5) |
C9 | 0.0340 (6) | 0.0319 (7) | 0.0340 (6) | 0.0009 (5) | −0.0038 (5) | −0.0022 (5) |
C10 | 0.0309 (6) | 0.0327 (7) | 0.0322 (6) | 0.0041 (5) | −0.0061 (5) | 0.0021 (5) |
C11 | 0.0396 (7) | 0.0343 (7) | 0.0286 (6) | 0.0055 (5) | 0.0023 (5) | 0.0011 (5) |
C12 | 0.0376 (7) | 0.0337 (7) | 0.0265 (6) | 0.0011 (5) | −0.0024 (5) | −0.0046 (5) |
C13 | 0.0421 (7) | 0.0337 (7) | 0.0385 (7) | 0.0010 (6) | −0.0040 (5) | −0.0017 (6) |
C14 | 0.0406 (7) | 0.0465 (8) | 0.0449 (8) | 0.0083 (6) | −0.0063 (6) | −0.0019 (6) |
C15 | 0.0367 (7) | 0.0582 (9) | 0.0454 (8) | −0.0040 (7) | −0.0014 (6) | −0.0033 (7) |
C16 | 0.0480 (8) | 0.0428 (8) | 0.0457 (8) | −0.0097 (6) | 0.0001 (6) | 0.0011 (6) |
C17 | 0.0458 (8) | 0.0333 (7) | 0.0381 (7) | 0.0025 (6) | −0.0031 (6) | −0.0023 (6) |
C18 | 0.0512 (9) | 0.0552 (10) | 0.0531 (9) | −0.0099 (7) | 0.0163 (7) | −0.0085 (7) |
O1—C2 | 1.3434 (17) | C8—C9 | 1.3716 (18) |
O1—H1 | 0.92 (2) | C9—C10 | 1.4184 (18) |
O2—C8 | 1.3646 (16) | C9—H9 | 0.9500 |
O2—C18 | 1.4244 (18) | C11—C12 | 1.4964 (18) |
O3—C11 | 1.2340 (16) | C12—C17 | 1.3895 (19) |
C1—C2 | 1.4029 (18) | C12—C13 | 1.3908 (18) |
C1—C10 | 1.4414 (18) | C13—C14 | 1.386 (2) |
C1—C11 | 1.4728 (18) | C13—H13 | 0.9500 |
C2—C3 | 1.413 (2) | C14—C15 | 1.384 (2) |
C3—C4 | 1.357 (2) | C14—H14 | 0.9500 |
C3—H3 | 0.9500 | C15—C16 | 1.381 (2) |
C4—C5 | 1.418 (2) | C15—H15 | 0.9500 |
C4—H4 | 0.9500 | C16—C17 | 1.382 (2) |
C5—C6 | 1.413 (2) | C16—H16 | 0.9500 |
C5—C10 | 1.4233 (18) | C17—H17 | 0.9500 |
C6—C7 | 1.358 (2) | C18—H18A | 0.9800 |
C6—H6 | 0.9500 | C18—H18B | 0.9800 |
C7—C8 | 1.4138 (19) | C18—H18C | 0.9800 |
C7—H7 | 0.9500 | ||
C2—O1—H1 | 107.2 (15) | C9—C10—C1 | 123.00 (12) |
C8—O2—C18 | 117.15 (11) | C5—C10—C1 | 119.21 (11) |
C2—C1—C10 | 118.47 (12) | O3—C11—C1 | 120.18 (12) |
C2—C1—C11 | 117.33 (12) | O3—C11—C12 | 116.62 (12) |
C10—C1—C11 | 124.15 (11) | C1—C11—C12 | 123.10 (11) |
O1—C2—C1 | 124.13 (13) | C17—C12—C13 | 119.65 (12) |
O1—C2—C3 | 114.90 (12) | C17—C12—C11 | 118.39 (11) |
C1—C2—C3 | 120.91 (13) | C13—C12—C11 | 121.80 (12) |
C4—C3—C2 | 120.41 (13) | C14—C13—C12 | 119.65 (13) |
C4—C3—H3 | 119.8 | C14—C13—H13 | 120.2 |
C2—C3—H3 | 119.8 | C12—C13—H13 | 120.2 |
C3—C4—C5 | 121.32 (13) | C15—C14—C13 | 120.45 (13) |
C3—C4—H4 | 119.3 | C15—C14—H14 | 119.8 |
C5—C4—H4 | 119.3 | C13—C14—H14 | 119.8 |
C6—C5—C4 | 121.16 (13) | C16—C15—C14 | 119.80 (13) |
C6—C5—C10 | 119.56 (12) | C16—C15—H15 | 120.1 |
C4—C5—C10 | 119.26 (13) | C14—C15—H15 | 120.1 |
C7—C6—C5 | 121.57 (13) | C15—C16—C17 | 120.20 (14) |
C7—C6—H6 | 119.2 | C15—C16—H16 | 119.9 |
C5—C6—H6 | 119.2 | C17—C16—H16 | 119.9 |
C6—C7—C8 | 119.07 (13) | C16—C17—C12 | 120.21 (13) |
C6—C7—H7 | 120.5 | C16—C17—H17 | 119.9 |
C8—C7—H7 | 120.5 | C12—C17—H17 | 119.9 |
O2—C8—C9 | 124.22 (12) | O2—C18—H18A | 109.5 |
O2—C8—C7 | 114.70 (12) | O2—C18—H18B | 109.5 |
C9—C8—C7 | 121.07 (12) | H18A—C18—H18B | 109.5 |
C8—C9—C10 | 120.84 (12) | O2—C18—H18C | 109.5 |
C8—C9—H9 | 119.6 | H18A—C18—H18C | 109.5 |
C10—C9—H9 | 119.6 | H18B—C18—H18C | 109.5 |
C9—C10—C5 | 117.70 (12) | ||
C10—C1—C2—O1 | −176.30 (12) | C6—C5—C10—C1 | −178.29 (11) |
C11—C1—C2—O1 | 6.22 (19) | C4—C5—C10—C1 | 3.48 (18) |
C10—C1—C2—C3 | 6.53 (19) | C2—C1—C10—C9 | 168.90 (12) |
C11—C1—C2—C3 | −170.95 (12) | C11—C1—C10—C9 | −13.80 (19) |
O1—C2—C3—C4 | −178.91 (13) | C2—C1—C10—C5 | −7.45 (17) |
C1—C2—C3—C4 | −1.5 (2) | C11—C1—C10—C5 | 169.85 (11) |
C2—C3—C4—C5 | −2.7 (2) | C2—C1—C11—O3 | −25.19 (18) |
C3—C4—C5—C6 | −176.55 (13) | C10—C1—C11—O3 | 157.48 (12) |
C3—C4—C5—C10 | 1.7 (2) | C2—C1—C11—C12 | 150.82 (12) |
C4—C5—C6—C7 | 175.00 (13) | C10—C1—C11—C12 | −26.50 (18) |
C10—C5—C6—C7 | −3.20 (19) | O3—C11—C12—C17 | −42.07 (17) |
C5—C6—C7—C8 | −0.6 (2) | C1—C11—C12—C17 | 141.79 (12) |
C18—O2—C8—C9 | 6.22 (19) | O3—C11—C12—C13 | 133.31 (13) |
C18—O2—C8—C7 | −174.85 (12) | C1—C11—C12—C13 | −42.84 (18) |
C6—C7—C8—O2 | −176.72 (12) | C17—C12—C13—C14 | −0.74 (19) |
C6—C7—C8—C9 | 2.25 (19) | C11—C12—C13—C14 | −176.06 (12) |
O2—C8—C9—C10 | 178.76 (11) | C12—C13—C14—C15 | −1.0 (2) |
C7—C8—C9—C10 | −0.11 (19) | C13—C14—C15—C16 | 1.4 (2) |
C8—C9—C10—C5 | −3.58 (18) | C14—C15—C16—C17 | 0.0 (2) |
C8—C9—C10—C1 | −179.98 (11) | C15—C16—C17—C12 | −1.8 (2) |
C6—C5—C10—C9 | 5.17 (17) | C13—C12—C17—C16 | 2.1 (2) |
C4—C5—C10—C9 | −173.06 (12) | C11—C12—C17—C16 | 177.61 (11) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O3 | 0.92 (2) | 1.77 (2) | 2.5792 (14) | 145 (2) |
O1—H1···O3i | 0.92 (2) | 2.32 (2) | 3.0088 (16) | 132.4 (18) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C18H14O3 |
Mr | 278.29 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 193 |
a, b, c (Å) | 9.81012 (18), 6.27891 (11), 22.0737 (4) |
β (°) | 93.167 (1) |
V (Å3) | 1357.59 (4) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 0.75 |
Crystal size (mm) | 0.60 × 0.40 × 0.40 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID diffractometer |
Absorption correction | Numerical (NUMABS; Higashi, 1999) |
Tmin, Tmax | 0.586, 0.754 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 20565, 2496, 2244 |
Rint | 0.038 |
(sin θ/λ)max (Å−1) | 0.602 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.103, 1.08 |
No. of reflections | 2496 |
No. of parameters | 196 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.16 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2004), SIR2004 (Burla et al., 2005), SHELXL97 (Sheldrick, 2008), ORTEPIII (Burnett & Johnson, 1996).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O3 | 0.92 (2) | 1.77 (2) | 2.5792 (14) | 145 (2) |
O1—H1···O3i | 0.92 (2) | 2.32 (2) | 3.0088 (16) | 132.4 (18) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Acknowledgements
The authors would express their gratitude to Professor Keiichi Noguchi for technical advice. This work was partially supported by a Sasagawa Scientific research grant from the Japan Science Society.
References
Burla, M. C., Caliandro, R., Camalli, M., Carrozzini, B., Cascarano, G. L., De Caro, L., Giacovazzo, C., Polidori, G. & Spagna, R. (2005). J. Appl. Cryst. 38, 381–388. Web of Science CrossRef CAS IUCr Journals Google Scholar
Burnett, M. N. & Johnson, C. K. (1996). ORTEPIII. Report ORNL-6895. Oak Ridge National Laboratory. Tennessee, USA. Google Scholar
Higashi, T. (1999). NUMABS. Rigaku Corporation, Tokyo, Japan. Google Scholar
Hijikata, D., Nakaema, K., Watanabe, S., Okamoto, A. & Yonezawa, N. (2010). Acta Cryst. E66, o554. Web of Science CSD CrossRef IUCr Journals Google Scholar
Kato, Y., Nagasawa, A., Hijikata, D., Okamoto, A. & Yonezawa, N. (2010). Acta Cryst. E66, o2659. Web of Science CSD CrossRef IUCr Journals Google Scholar
Mitsui, R., Nakaema, K., Noguchi, K., Okamoto, A. & Yonezawa, N. (2008). Acta Cryst. E64, o1278. Web of Science CSD CrossRef IUCr Journals Google Scholar
Mitsui, R., Nakaema, K., Noguchi, K. & Yonezawa, N. (2008). Acta Cryst. E64, o2497. Web of Science CSD CrossRef IUCr Journals Google Scholar
Mitsui, R., Noguchi, K. & Yonezawa, N. (2009). Acta Cryst. E65, o543. Web of Science CSD CrossRef IUCr Journals Google Scholar
Rigaku (1998). PROCESS-AUTO. Rigaku Corporation, Tokyo, Japan. Google Scholar
Rigaku/MSC (2004). CrystalStructure. Rigaku/MSC, The Woodlands, Texas, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Recently, we reported the crystal structures of several 1-aroylated 2,7-dimethoxynaphthalene homologues exemplified by 1-benzoyl-2,7-dimethoxynaphthalene (Kato et al., 2010) and 1-(4-chlorobenzoyl)-2,7-dimethoxynaphthalene (Mitsui, Nakaema, Noguchi, Okamoto & Yonezawa, 2008). Methyl 4-(2,7-dimethoxy-1-naphthoyl)benzoate (Hijikata et al., 2010). Furthermore, we also reported the crystal structure of 1-monoaroylnaphthalene derivatives having 2-oxy group exemplified by (4-chlorobenzoyl)(2-hydroxy-7-methoxynaphthalene-1-yl)metanone (Mitsui, Nakaema, Noguchi & Yonezawa, 2008) and (4-chlorophenyl)(2-ethoxy-7-methoxynaphthalen-1-yl)methanone (Mitsui et al., 2009). As a part of our ongoing studies on the synthesis and crystal structure analysis of aroylated naphthalene derivatives, we prepared and analysed the crystal structure of 1-benzoyl-2-hydroxy-7-methoxynaphthalene (I). The title compound was prepared by chemoselective demethylation of 1-benzoyl-2,7-dimethoxynaphthalene with aluminium trichloride.
An ORTEPIII (Burnett & Johnson, 1996) plot of (I) is shown in Fig. 1. In the molecule of (I), the intramolecular O—H···O═C hydrogen bond that forms a six-membered ring including carbonyl and hydroxy groups on the naphthalene ring is observed [O3···H1 = 1.77 (2) Å]. The conformation of these groups resembles to that of (4-chlorobenzoyl)(2-hydroxy-7-methoxynaphthalen-1-yl)metanone (Mitsui, Nakaema, Noguchi & Yonezawa, 2008). The angles of C═O bond vector against the least-squares plane of the naphthalene ring (C1–C10) and benzene ring (C12–C17) are 30.58 (6) and 42.82 (7)°, respectively. The dihedral angle between the naphthalene ring (C1–C10) and benzene ring (C12–C17) is 58.65 (5)°.
In the crystal structure, the molecular packing of (I) is mainly stabilized by intermolecular hydrogen bond and van der Waals interaction. Two adjacent naphthalene rings are exactly parallel and the intermolecular O—H···O═C hydrogen bond between the hydroxy group and the carbonyl oxygen on the naphthalene ring (Fig. 2) along the c axis, is observed [O3···H1 = 2.32 (2) Å]. The oxygen atom in the methoxy group interacts with carbon atom in the methoxy group of the next molecule, i.e. two methoxy groups in the adjacent molecules interact with each other [O2···C18 = 3.060 (2) Å] along the a axis. The naphthalene rings interact with the carbonyl groups [C4···O3 = 3.036 (18) Å] along the b axis. The benzoyl groups interact with the methyl groups (C16···H18A = 2.88 Å) along the a axis.