organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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ISSN: 2056-9890

(E)-3-(4-Chloro­phen­yl)-1-(5-hy­dr­oxy-2,2-di­methyl-2H-chromen-6-yl)prop-2-en-1-one

aDepartment of Pharmaceutics, West China of Pharmacy, Sichuan University, Chengdu 610041, People's Republic of China, bState Key Laboratory of Biotheraphy, West China Hospital, West China Medical Shcool, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China, and cDepartment of Internal Medicine, Chongqing Medical and Pharmaceutical College, Chongqing, People's Republic of China
*Correspondence e-mail: chen2331738@yeah.net

(Received 12 December 2011; accepted 22 December 2011; online 7 January 2012)

There are two independent mol­ecules in the asymmetric unit of the title compound, C20H17ClO3, each having an E configuration about the –C=C– bond. The dihedral angles between the two benzene rings in the two mol­ecules are 7.17 (11) and 9.82 (11)°. In both mol­ecules, the hy­droxy group is involved in an intra­molecular O—H⋯O hydrogen bond.

Related literature

For the biological activity of chalcones, see: Tran et al. (2009[Tran, T. D., Park, H., Kim, H. P., Ecker, G. F. & Thai, K. M. (2009). Bioorg. Med. Chem. Lett. 19, 1650-1653.]); Rao et al. (2004[Rao, Y. K., Fang, S.-H. & Tzeng, Y.-M. (2004). Bioorg. Med. Chem. 12, 2679-2686.]); Opletalova & Sedivy (1999[Opletalova, V. & Sedivy, D. (1999). Ceska Slov. Farm. 48, 252-255.]); Dimmock et al. (1999[Dimmock, J. R., Elias, D. W., Beazely, M. A. & Kandepu, N. M. (1999). Curr. Med. Chem. 6, 1125-1149.]). For related structures, see: Boeck et al. (2006[Boeck, P., Leal, P. C., Yunes, R. A., Filho, V. C., Santos, E. C. & Bergmann, B. R. (2006). Bioorg. Med. Chem. 14, 1538-1545.]); Jasinski et al. (2009[Jasinski, J. P., Butcher, R. J., Veena, K., Narayana, B. & Yathirajan, H. S. (2009). Acta Cryst. E65, o1965-o1966.]); Wang & Yang (2011[Wang, G. & Yang, Y. (2011). Acta Cryst. E67, o1265.]). For the synthesis of a related compound, see: Krohn et al. (2002[Krohn, K., Steingrover, K. & Rao, M. S. (2002). Phytochemistry, 61, 931-936.]).

[Scheme 1]

Experimental

Crystal data
  • C20H17ClO3

  • Mr = 340.79

  • Monoclinic, P 21 /c

  • a = 11.0641 (7) Å

  • b = 9.8255 (5) Å

  • c = 30.7834 (14) Å

  • β = 91.177 (4)°

  • V = 3345.8 (3) Å3

  • Z = 8

  • Mo Kα radiation

  • μ = 0.24 mm−1

  • T = 293 K

  • 0.30 × 0.25 × 0.20 mm

Data collection
  • Oxford Diffraction Xcalibur Eos diffractometer

  • Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010[Oxford Diffraction (2010). CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, England.]) Tmin = 0.979, Tmax = 1.0

  • 15168 measured reflections

  • 6836 independent reflections

  • 4040 reflections with I > 2σ(I)

  • Rint = 0.023

Refinement
  • R[F2 > 2σ(F2)] = 0.054

  • wR(F2) = 0.145

  • S = 1.01

  • 6836 reflections

  • 439 parameters

  • H-atom parameters constrained

  • Δρmax = 0.17 e Å−3

  • Δρmin = −0.32 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
O2—H2⋯O3 0.82 1.82 2.537 (2) 146
O5—H5A⋯O6 0.82 1.81 2.532 (2) 147

Data collection: CrysAlis PRO (Oxford Diffraction, 2010[Oxford Diffraction (2010). CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, England.]); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: OLEX2 (Dolomanov et al., 2009[Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339-341.]); software used to prepare material for publication: OLEX2.

Supporting information


Comment top

Chalcones (1,3-diaryl-2-propen-1-ones) are stucturally simple compounds of the flavonoid family which display an impressive array of biological properties such as anticancer (Rao et al., 2004; Tran et al., 2009), antileishmanial (Boeck et al., 2006), antifungal activity (Opletalova & Sedivy, 1999) and antioxidant activity (Dimmock et al., 1999). Chalcones can be easily obtained from the adol condensation of aromatic aldehydes and aromatic ketones. The crystal structure of related compounds:(E)-1-(5-Hydroxy-2,2-dimethl-2H-chromen-6-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (Wang et al., 2011) and (2E)-1-(2-Bromoppheny)-3-(3,4,5-trimethoxypheny)prop-2-en-1-one (Jasinski et al., 2009) have been reported recently. The crystal structure of the title compound (I) is reported in this paper.

The asymmetric unit of (I) consists of two crystallographically independent molecules (Fig. 1). The bond distances are normal and are comparable with a closely related structure (Wang et al., 2011). Each molecule of (I) exists in an E configuration with respect to the C7C8 double bond. The dihedral angles between the two benzene rings in each molecule are 7.17 (11)° [C21—C26/C30—C35] and 9.82 (11)° [C1—C6/C10—C15]. In both independent molecules, the hydroxy group is invovled in an intramolecular O—H···O hydrogen bond.

Related literature top

For the biological activity of chalcones, see: Tran et al. (2009); Rao et al. (2004); Opletalova & Sedivy (1999); Dimmock et al. (1999). For related structures, see: Boeck et al. (2006); Jasinski et al. (2009); Wang et al. (2011). For the synthesis of a related compound, see: Krohn et al. (2002).

Experimental top

1-(5-hydroxy-2,2-dimethyl-2H-chromen-6-yl)ethanone(2.182 g,10 mmol), 4-chlorobenzaldehyde(1.962 g, 10 mmol) in ethanal KOH (20% w/v aqueous solution) and the mixture was stirred at 273 K for 10 h. The the crude product was recrystallized from ethanol to give (I). Single crystals suitable for X-ray structure determination were grown by slow evaporation of a diethyl ether solution of (I) at room temperature.

Refinement top

H atoms were positioned geometrically (C—H = 0.93–0.96 Å, O—H = 0.86 Å) and constrained to ride on their parent atoms in a riding-model approximation, with Uiso(H) = 1.2eq(C) or 1.5Ueq(Cmethyl,O).

Computing details top

Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell refinement: CrysAlis PRO (Oxford Diffraction, 2010); data reduction: CrysAlis PRO (Oxford Diffraction, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).

Figures top
[Figure 1] Fig. 1. The two independent molecules of (I) with 30% probability displacement ellipsoid. Dashed lines denote intermolecular hydrogen bonds.
(E)-3-(4-Chlorophenyl)-1-(5-hydroxy-2,2-dimethyl-2H- chromen-6-yl)prop-2-en-1-one top
Crystal data top
C20H17ClO3F(000) = 1424
Mr = 340.79Dx = 1.353 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.7107 Å
Hall symbol: -P 2ybcCell parameters from 3974 reflections
a = 11.0641 (7) Åθ = 2.9–29.2°
b = 9.8255 (5) ŵ = 0.24 mm1
c = 30.7834 (14) ÅT = 293 K
β = 91.177 (4)°Block, yellow
V = 3345.8 (3) Å30.30 × 0.25 × 0.20 mm
Z = 8
Data collection top
Oxford Diffraction Xcalibur Eos
diffractometer
6836 independent reflections
Radiation source: fine-focus sealed tube4040 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.023
Detector resolution: 16.0874 pixels mm-1θmax = 26.4°, θmin = 2.9°
ω scansh = 1113
Absorption correction: multi-scan
(CrysAlis PRO; Oxford Diffraction, 2010)
k = 1012
Tmin = 0.979, Tmax = 1.0l = 3838
15168 measured reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.054Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.145H-atom parameters constrained
S = 1.01 w = 1/[σ2(Fo2) + (0.0503P)2 + 0.9761P]
where P = (Fo2 + 2Fc2)/3
6836 reflections(Δ/σ)max < 0.001
439 parametersΔρmax = 0.17 e Å3
0 restraintsΔρmin = 0.32 e Å3
Crystal data top
C20H17ClO3V = 3345.8 (3) Å3
Mr = 340.79Z = 8
Monoclinic, P21/cMo Kα radiation
a = 11.0641 (7) ŵ = 0.24 mm1
b = 9.8255 (5) ÅT = 293 K
c = 30.7834 (14) Å0.30 × 0.25 × 0.20 mm
β = 91.177 (4)°
Data collection top
Oxford Diffraction Xcalibur Eos
diffractometer
6836 independent reflections
Absorption correction: multi-scan
(CrysAlis PRO; Oxford Diffraction, 2010)
4040 reflections with I > 2σ(I)
Tmin = 0.979, Tmax = 1.0Rint = 0.023
15168 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0540 restraints
wR(F2) = 0.145H-atom parameters constrained
S = 1.01Δρmax = 0.17 e Å3
6836 reflectionsΔρmin = 0.32 e Å3
439 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cl10.17697 (7)0.68585 (9)0.12791 (2)0.0832 (3)
Cl20.67696 (7)0.18823 (9)0.13224 (2)0.0867 (3)
O10.43040 (13)1.34774 (15)0.21832 (4)0.0446 (4)
O20.55742 (17)1.50025 (16)0.07889 (5)0.0591 (5)
H20.54971.48260.05310.089*
O30.49425 (19)1.36093 (17)0.01377 (5)0.0685 (6)
O40.92657 (15)0.83125 (15)0.21812 (4)0.0535 (4)
O51.05691 (17)0.98927 (17)0.07956 (5)0.0630 (5)
H5A1.04970.97220.05370.094*
O60.98945 (19)0.85726 (18)0.01371 (5)0.0702 (6)
C10.2403 (2)0.8166 (3)0.09786 (7)0.0516 (6)
C20.3173 (2)0.9068 (3)0.11760 (7)0.0601 (7)
H2A0.33680.89800.14700.072*
C30.3659 (2)1.0107 (3)0.09376 (7)0.0559 (7)
H30.41831.07220.10730.067*
C40.3383 (2)1.0259 (2)0.04984 (6)0.0440 (5)
C50.2598 (2)0.9333 (3)0.03089 (7)0.0603 (7)
H50.24010.94100.00150.072*
C60.2099 (2)0.8296 (3)0.05478 (7)0.0645 (8)
H60.15610.76880.04170.077*
C70.3899 (2)1.1385 (2)0.02538 (7)0.0484 (6)
H70.43211.20350.04160.058*
C80.3838 (2)1.1588 (2)0.01696 (7)0.0501 (6)
H80.34321.09580.03450.060*
C90.4395 (2)1.2785 (2)0.03733 (7)0.0467 (6)
C100.4317 (2)1.3002 (2)0.08425 (6)0.0411 (5)
C110.4949 (2)1.4095 (2)0.10305 (6)0.0409 (5)
C120.4962 (2)1.4278 (2)0.14818 (6)0.0391 (5)
C130.43243 (19)1.3360 (2)0.17420 (6)0.0379 (5)
C140.3628 (2)1.2328 (2)0.15658 (6)0.0445 (6)
H140.31601.17660.17450.053*
C150.3640 (2)1.2151 (2)0.11228 (6)0.0439 (5)
H150.31871.14490.10050.053*
C160.5543 (2)1.5420 (2)0.16934 (7)0.0481 (6)
H160.58291.61510.15290.058*
C170.5664 (2)1.5415 (2)0.21202 (7)0.0469 (6)
H170.59731.61790.22570.056*
C180.5310 (2)1.4197 (2)0.23871 (6)0.0409 (5)
C190.6367 (2)1.3223 (2)0.24194 (7)0.0521 (6)
H19A0.66111.29280.21330.078*
H19C0.70301.36750.25540.078*
H19B0.61281.24480.25910.078*
C200.4809 (2)1.4566 (2)0.28360 (7)0.0533 (6)
H20A0.45281.37560.29810.080*
H20C0.54331.49810.30030.080*
H20B0.41491.51910.28080.080*
C210.7398 (2)0.3173 (3)0.10131 (7)0.0540 (6)
C220.8127 (2)0.4117 (3)0.12071 (7)0.0647 (7)
H220.82970.40700.15040.078*
C230.8612 (2)0.5144 (3)0.09617 (7)0.0601 (7)
H230.91120.57870.10950.072*
C240.8371 (2)0.5239 (2)0.05185 (7)0.0467 (6)
C250.7623 (3)0.4268 (3)0.03335 (7)0.0627 (7)
H250.74450.43080.00370.075*
C260.7131 (3)0.3235 (3)0.05785 (8)0.0672 (8)
H260.66250.25910.04490.081*
C270.8875 (2)0.6353 (2)0.02659 (7)0.0498 (6)
H270.92960.70140.04230.060*
C280.8806 (2)0.6535 (2)0.01581 (7)0.0514 (6)
H280.84020.58940.03290.062*
C290.9352 (2)0.7731 (2)0.03680 (7)0.0478 (6)
C300.9275 (2)0.7921 (2)0.08387 (6)0.0423 (5)
C310.9920 (2)0.8995 (2)0.10336 (7)0.0440 (5)
C320.9926 (2)0.9147 (2)0.14846 (7)0.0428 (5)
C330.9251 (2)0.8254 (2)0.17399 (6)0.0423 (5)
C340.8573 (2)0.7219 (2)0.15562 (7)0.0482 (6)
H340.81080.66440.17320.058*
C350.8599 (2)0.7056 (2)0.11134 (7)0.0468 (6)
H350.81560.63530.09920.056*
C361.0660 (2)1.0162 (2)0.17048 (8)0.0536 (6)
H361.12101.06890.15460.064*
C371.0540 (2)1.0329 (2)0.21284 (7)0.0516 (6)
H371.10611.09210.22680.062*
C380.9593 (2)0.9595 (2)0.23919 (7)0.0463 (6)
C390.8463 (2)1.0461 (3)0.24342 (8)0.0666 (7)
H39B0.78520.99690.25950.100*
H39C0.86481.12890.25840.100*
H39A0.81731.06710.21500.100*
C401.0025 (3)0.9172 (3)0.28349 (7)0.0618 (7)
H40B1.07460.86350.28020.093*
H40C1.01950.99680.30040.093*
H40A0.94080.86440.29800.093*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cl10.0787 (6)0.1037 (6)0.0670 (4)0.0313 (5)0.0003 (4)0.0278 (4)
Cl20.0782 (6)0.1026 (6)0.0797 (5)0.0145 (5)0.0132 (4)0.0333 (4)
O10.0441 (9)0.0561 (10)0.0337 (8)0.0075 (8)0.0009 (6)0.0009 (7)
O20.0831 (14)0.0533 (10)0.0405 (8)0.0213 (9)0.0060 (9)0.0060 (8)
O30.1044 (16)0.0582 (11)0.0422 (9)0.0197 (11)0.0150 (9)0.0015 (8)
O40.0721 (12)0.0492 (10)0.0393 (8)0.0154 (9)0.0071 (8)0.0031 (7)
O50.0772 (14)0.0610 (11)0.0502 (9)0.0267 (10)0.0132 (9)0.0005 (8)
O60.0999 (16)0.0619 (11)0.0480 (10)0.0190 (11)0.0197 (10)0.0024 (8)
C10.0450 (15)0.0673 (16)0.0428 (13)0.0030 (13)0.0042 (10)0.0080 (11)
C20.0624 (18)0.0832 (19)0.0345 (12)0.0096 (15)0.0052 (11)0.0073 (12)
C30.0566 (17)0.0716 (17)0.0391 (13)0.0122 (14)0.0081 (11)0.0006 (11)
C40.0433 (14)0.0540 (14)0.0349 (11)0.0028 (12)0.0027 (10)0.0011 (10)
C50.0686 (19)0.0784 (19)0.0335 (12)0.0145 (15)0.0063 (11)0.0046 (12)
C60.0683 (19)0.0797 (19)0.0452 (14)0.0226 (16)0.0072 (12)0.0014 (13)
C70.0508 (15)0.0553 (15)0.0392 (12)0.0003 (12)0.0000 (10)0.0002 (10)
C80.0603 (17)0.0491 (14)0.0408 (13)0.0001 (13)0.0013 (11)0.0001 (10)
C90.0553 (16)0.0445 (13)0.0402 (12)0.0027 (12)0.0015 (11)0.0032 (10)
C100.0477 (14)0.0390 (12)0.0366 (11)0.0005 (11)0.0021 (10)0.0033 (9)
C110.0452 (14)0.0377 (12)0.0395 (12)0.0006 (11)0.0041 (10)0.0063 (9)
C120.0411 (13)0.0376 (12)0.0386 (11)0.0015 (10)0.0007 (9)0.0018 (9)
C130.0343 (12)0.0441 (13)0.0355 (11)0.0030 (10)0.0022 (9)0.0034 (9)
C140.0432 (14)0.0500 (14)0.0404 (12)0.0108 (11)0.0026 (10)0.0076 (10)
C150.0476 (15)0.0432 (13)0.0411 (12)0.0072 (11)0.0073 (10)0.0018 (10)
C160.0571 (16)0.0360 (12)0.0510 (14)0.0045 (12)0.0049 (11)0.0018 (10)
C170.0550 (16)0.0368 (13)0.0490 (13)0.0016 (11)0.0012 (11)0.0077 (10)
C180.0443 (14)0.0405 (12)0.0382 (11)0.0007 (11)0.0049 (9)0.0050 (9)
C190.0473 (15)0.0524 (15)0.0568 (14)0.0042 (12)0.0057 (11)0.0022 (11)
C200.0617 (17)0.0558 (15)0.0424 (13)0.0031 (13)0.0019 (11)0.0068 (11)
C210.0438 (15)0.0686 (17)0.0499 (14)0.0008 (13)0.0075 (11)0.0114 (12)
C220.0641 (19)0.092 (2)0.0375 (13)0.0050 (17)0.0026 (12)0.0111 (13)
C230.0592 (18)0.0791 (19)0.0416 (13)0.0120 (15)0.0078 (11)0.0018 (12)
C240.0404 (14)0.0597 (15)0.0401 (12)0.0030 (12)0.0029 (10)0.0010 (11)
C250.0721 (19)0.0786 (19)0.0371 (13)0.0127 (16)0.0021 (12)0.0018 (12)
C260.072 (2)0.0755 (19)0.0543 (16)0.0215 (16)0.0037 (13)0.0004 (13)
C270.0474 (15)0.0563 (15)0.0458 (13)0.0008 (12)0.0012 (11)0.0012 (11)
C280.0606 (17)0.0499 (14)0.0437 (13)0.0044 (13)0.0015 (11)0.0003 (10)
C290.0530 (16)0.0455 (14)0.0445 (13)0.0019 (12)0.0050 (11)0.0018 (10)
C300.0445 (14)0.0411 (13)0.0413 (12)0.0000 (11)0.0000 (10)0.0025 (10)
C310.0420 (14)0.0421 (13)0.0477 (13)0.0043 (11)0.0040 (10)0.0030 (10)
C320.0413 (14)0.0412 (13)0.0459 (12)0.0028 (11)0.0018 (10)0.0004 (10)
C330.0456 (14)0.0446 (13)0.0369 (12)0.0017 (11)0.0044 (10)0.0045 (10)
C340.0539 (16)0.0458 (14)0.0449 (13)0.0144 (12)0.0037 (11)0.0081 (10)
C350.0520 (15)0.0451 (13)0.0437 (13)0.0082 (12)0.0063 (10)0.0002 (10)
C360.0506 (16)0.0522 (15)0.0577 (15)0.0150 (13)0.0043 (11)0.0048 (12)
C370.0469 (15)0.0505 (14)0.0576 (15)0.0085 (12)0.0052 (11)0.0104 (11)
C380.0502 (15)0.0448 (13)0.0441 (12)0.0023 (12)0.0058 (10)0.0018 (10)
C390.0501 (17)0.0729 (19)0.0768 (18)0.0113 (15)0.0021 (13)0.0082 (14)
C400.077 (2)0.0615 (17)0.0480 (14)0.0043 (15)0.0155 (13)0.0049 (12)
Geometric parameters (Å, º) top
Cl1—C11.739 (2)C19—H19A0.9600
Cl2—C211.739 (2)C19—H19C0.9600
O1—C131.363 (2)C19—H19B0.9600
O1—C181.471 (2)C20—H20A0.9600
O2—H20.8200C20—H20C0.9600
O2—C111.343 (2)C20—H20B0.9600
O3—C91.237 (3)C21—C221.360 (3)
O4—C331.360 (2)C21—C261.365 (3)
O4—C381.466 (3)C22—H220.9300
O5—H5A0.8200C22—C231.376 (3)
O5—C311.345 (2)C23—H230.9300
O6—C291.237 (3)C23—C241.388 (3)
C1—C21.363 (3)C24—C251.379 (3)
C1—C61.367 (3)C24—C271.460 (3)
C2—H2A0.9300C25—H250.9300
C2—C31.374 (3)C25—C261.382 (3)
C3—H30.9300C26—H260.9300
C3—C41.388 (3)C27—H270.9300
C4—C51.379 (3)C27—C281.318 (3)
C4—C71.461 (3)C28—H280.9300
C5—H50.9300C28—C291.477 (3)
C5—C61.379 (3)C29—C301.462 (3)
C6—H60.9300C30—C311.415 (3)
C7—H70.9300C30—C351.404 (3)
C7—C81.319 (3)C31—C321.397 (3)
C8—H80.9300C32—C331.386 (3)
C8—C91.474 (3)C32—C361.461 (3)
C9—C101.461 (3)C33—C341.390 (3)
C10—C111.412 (3)C34—H340.9300
C10—C151.407 (3)C34—C351.372 (3)
C11—C121.401 (3)C35—H350.9300
C12—C131.389 (3)C36—H360.9300
C12—C161.454 (3)C36—C371.318 (3)
C13—C141.390 (3)C37—H370.9300
C14—H140.9300C37—C381.497 (3)
C14—C151.375 (3)C38—C391.515 (3)
C15—H150.9300C38—C401.513 (3)
C16—H160.9300C39—H39B0.9600
C16—C171.323 (3)C39—H39C0.9600
C17—H170.9300C39—H39A0.9600
C17—C181.498 (3)C40—H40B0.9600
C18—C191.516 (3)C40—H40C0.9600
C18—C201.522 (3)C40—H40A0.9600
O1—C13—C12121.14 (19)C18—C20—H20C109.5
O1—C13—C14116.92 (18)C18—C20—H20B109.5
O1—C18—C17109.95 (17)C19—C18—C20110.97 (18)
O1—C18—C19108.40 (17)H19A—C19—H19C109.5
O1—C18—C20103.70 (17)H19A—C19—H19B109.5
O2—C11—C10122.11 (18)H19C—C19—H19B109.5
O2—C11—C12116.62 (19)H20A—C20—H20C109.5
O3—C9—C8118.49 (19)H20A—C20—H20B109.5
O3—C9—C10120.2 (2)H20C—C20—H20B109.5
O4—C33—C32121.5 (2)C21—C22—H22120.2
O4—C33—C34117.05 (19)C21—C22—C23119.6 (2)
O4—C38—C37110.53 (18)C21—C26—C25119.2 (2)
O4—C38—C39108.0 (2)C21—C26—H26120.4
O4—C38—C40104.35 (18)C22—C21—Cl2119.83 (19)
O5—C31—C30121.79 (19)C22—C21—C26120.9 (2)
O5—C31—C32117.2 (2)C22—C23—H23119.3
O6—C29—C28118.6 (2)C22—C23—C24121.3 (2)
O6—C29—C30120.2 (2)C23—C22—H22120.2
C1—C2—H2A120.2C23—C24—C27120.4 (2)
C1—C2—C3119.5 (2)C24—C23—H23119.3
C1—C6—C5119.5 (2)C24—C25—H25119.3
C1—C6—H6120.2C24—C25—C26121.5 (2)
C2—C1—Cl1119.86 (18)C24—C27—H27116.1
C2—C1—C6120.7 (2)C25—C24—C23117.5 (2)
C2—C3—H3119.4C25—C24—C27122.1 (2)
C2—C3—C4121.3 (2)C25—C26—H26120.4
C3—C2—H2A120.2C26—C21—Cl2119.2 (2)
C3—C4—C7120.2 (2)C26—C25—H25119.3
C4—C3—H3119.4C27—C28—H28119.2
C4—C5—H5119.4C27—C28—C29121.7 (2)
C4—C7—H7116.2C28—C27—C24127.9 (2)
C5—C4—C3117.7 (2)C28—C27—H27116.1
C5—C4—C7122.10 (19)C29—C28—H28119.2
C5—C6—H6120.2C30—C29—C28121.3 (2)
C6—C1—Cl1119.4 (2)C30—C35—H35119.1
C6—C5—C4121.2 (2)C31—O5—H5A109.5
C6—C5—H5119.4C31—C30—C29119.70 (19)
C7—C8—H8119.1C31—C32—C36123.3 (2)
C7—C8—C9121.9 (2)C32—C31—C30120.97 (19)
C8—C7—C4127.7 (2)C32—C33—C34121.43 (19)
C8—C7—H7116.2C32—C36—H36120.0
C9—C8—H8119.1C33—O4—C38119.11 (16)
C10—C9—C8121.3 (2)C33—C32—C31118.8 (2)
C10—C15—H15119.1C33—C32—C36117.84 (19)
C11—O2—H2109.5C33—C34—H34120.4
C11—C10—C9119.75 (19)C34—C35—C30121.8 (2)
C11—C12—C16123.84 (19)C34—C35—H35119.1
C12—C11—C10121.26 (18)C35—C30—C29122.7 (2)
C12—C13—C14121.85 (18)C35—C30—C31117.61 (19)
C12—C16—H16120.1C35—C34—C33119.3 (2)
C13—O1—C18117.98 (15)C35—C34—H34120.4
C13—C12—C11118.22 (19)C36—C37—H37119.0
C13—C12—C16117.84 (18)C36—C37—C38122.0 (2)
C13—C14—H14120.5C37—C36—C32119.9 (2)
C14—C15—C10121.9 (2)C37—C36—H36120.0
C14—C15—H15119.1C37—C38—C39110.1 (2)
C15—C10—C9122.7 (2)C37—C38—C40113.0 (2)
C15—C10—C11117.56 (18)C38—C37—H37119.0
C15—C14—C13119.01 (19)C38—C39—H39B109.5
C15—C14—H14120.5C38—C39—H39C109.5
C16—C17—H17119.4C38—C39—H39A109.5
C16—C17—C18121.1 (2)C38—C40—H40B109.5
C17—C16—C12119.8 (2)C38—C40—H40C109.5
C17—C16—H16120.1C38—C40—H40A109.5
C17—C18—C19110.31 (19)H39B—C39—H39C109.5
C17—C18—C20113.22 (18)H39B—C39—H39A109.5
C18—C17—H17119.4H39C—C39—H39A109.5
C18—C19—H19A109.5C40—C38—C39110.63 (19)
C18—C19—H19C109.5H40B—C40—H40C109.5
C18—C19—H19B109.5H40B—C40—H40A109.5
C18—C20—H20A109.5H40C—C40—H40A109.5
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O2—H2···O30.821.822.537 (2)146
O5—H5A···O60.821.812.532 (2)147

Experimental details

Crystal data
Chemical formulaC20H17ClO3
Mr340.79
Crystal system, space groupMonoclinic, P21/c
Temperature (K)293
a, b, c (Å)11.0641 (7), 9.8255 (5), 30.7834 (14)
β (°) 91.177 (4)
V3)3345.8 (3)
Z8
Radiation typeMo Kα
µ (mm1)0.24
Crystal size (mm)0.30 × 0.25 × 0.20
Data collection
DiffractometerOxford Diffraction Xcalibur Eos
diffractometer
Absorption correctionMulti-scan
(CrysAlis PRO; Oxford Diffraction, 2010)
Tmin, Tmax0.979, 1.0
No. of measured, independent and
observed [I > 2σ(I)] reflections
15168, 6836, 4040
Rint0.023
(sin θ/λ)max1)0.625
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.054, 0.145, 1.01
No. of reflections6836
No. of parameters439
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.17, 0.32

Computer programs: CrysAlis PRO (Oxford Diffraction, 2010), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), OLEX2 (Dolomanov et al., 2009).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O2—H2···O30.821.822.537 (2)145.9
O5—H5A···O60.821.812.532 (2)146.5
 

Acknowledgements

The authors thank Mr Zhi-Hua Mao of Sichuan University for the X-ray data collection.

References

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