Abstract
C15H14O3, monoclinic, P21/c (no. 14), a = 9.0972(11) Å, b = 11.1576(14) Å, c = 12.5933(16) Å, β = 105.368(1)°, V = 1232.6(3) Å3, Z = 4, Rgt(F) = 0.0393, wRref(F2) = 0.1190, T = 296 K.

The asymmetric unit of the title crystal structure is shown in the figure. Tables 1 and 2 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.
Data collection and handling.
| Crystal: | Colourless block |
| Size: | 0.39 × 0.37 × 0.21 mm |
| Wavelength: | Mo Kα radiation (0.71073 Å) |
| μ: | 0.9 cm−1 |
| Diffractometer, scan mode: | Bruker SMART, φ and ω |
| 2θmax, completeness: | 51°, >99% |
| N(hkl)measured, N(hkl)unique, Rint: | 9045, 2292, 0.019 |
| Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 1814 |
| N(param)refined: | 165 |
| Programs: | Bruker programs [1], SHELX [2], DIAMOND [3] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | x | y | z | Uiso*/Ueq |
|---|---|---|---|---|
| C1 | 0.69207(14) | 0.54295(12) | 0.07025(11) | 0.0400(3) |
| C2 | 0.62058(15) | 0.58238(13) | 0.14993(11) | 0.0437(3) |
| C3 | 0.56995(17) | 0.70003(14) | 0.15153(14) | 0.0542(4) |
| H3 | 0.5225 | 0.7240 | 0.2050 | 0.065* |
| C4 | 0.59008(18) | 0.78018(14) | 0.07441(15) | 0.0611(5) |
| H4 | 0.5576 | 0.8591 | 0.0756 | 0.073* |
| C5 | 0.65910(19) | 0.74290(15) | −0.00523(15) | 0.0629(5) |
| H5 | 0.6719 | 0.7974 | −0.0579 | 0.075* |
| C6 | 0.70941(18) | 0.62694(14) | −0.00845(13) | 0.0529(4) |
| H6 | 0.7552 | 0.6041 | −0.0631 | 0.064* |
| C7 | 0.74262(14) | 0.41814(12) | 0.07414(10) | 0.0394(3) |
| C8 | 0.71851(15) | 0.34582(12) | 0.15342(11) | 0.0422(3) |
| C9 | 0.75956(18) | 0.21702(14) | 0.16971(13) | 0.0531(4) |
| H9A | 0.6720 | 0.1687 | 0.1334 | 0.064* |
| H9B | 0.7851 | 0.1987 | 0.2478 | 0.064* |
| C10 | 0.89353(19) | 0.18408(14) | 0.12442(13) | 0.0537(4) |
| C11 | 0.8597(2) | 0.23314(14) | 0.00726(12) | 0.0545(4) |
| H11A | 0.9483 | 0.2197 | −0.0203 | 0.065* |
| H11B | 0.7758 | 0.1878 | −0.0389 | 0.065* |
| C12 | 0.81965(17) | 0.36456(13) | −0.00448(11) | 0.0470(4) |
| C13 | 0.9096(3) | 0.04775(17) | 0.12491(19) | 0.0950(7) |
| H13A | 0.9234 | 0.0182 | 0.1985 | 0.143* |
| H13B | 0.9962 | 0.0263 | 0.0989 | 0.143* |
| H13C | 0.8191 | 0.0131 | 0.0776 | 0.143* |
| C14 | 1.0404(2) | 0.2398(2) | 0.19567(16) | 0.0758(6) |
| H14A | 1.0320 | 0.3256 | 0.1925 | 0.114* |
| H14B | 1.1250 | 0.2152 | 0.1687 | 0.114* |
| H14C | 1.0563 | 0.2136 | 0.2705 | 0.114* |
| C15 | 0.60058(17) | 0.50123(14) | 0.23541(12) | 0.0512(4) |
| O1 | 0.64985(12) | 0.38465(9) | 0.23165(8) | 0.0522(3) |
| O2 | 0.54748(16) | 0.52519(12) | 0.31087(11) | 0.0803(4) |
| O3 | 0.84832(17) | 0.42166(11) | −0.07884(10) | 0.0750(4) |
Source of material
The title compound was synthesized according to a reported procedure [4]. To a flask containing methyl 2-bromobenzoate (1 mmol) and 5,5-dimethylcyclohexane-1,3-dione (3 mmol), DMF (5 mL), CuI (0.1 mmol) and K2CO3 (3 mmol) were added. The mixture was stirred at 90 °C for 20 h. Then the reaction was quenched with aqueous NH4Cl. The mixture was filtrated through celite, and the filtrate was extracted with ethyl acetate (10 mL) three times. The combined organic phases were dried, filtered and concentrated under vacuum. The residue was purified by column chromatography on silica gel eluenting with ethyl acetate/hexane (1:4) to give 3,3-dimethyl-3,4-dihydro-1H-benzo[c]chromene-1,6(2H)-dione. Single crystals were obtained by slow evaporation of the solvents from an acetone-ethyl ether (1:1 v/v) solution of the title compound.
Experimental details
All hydrogen atoms were positioned geometrically and refined using a riding model with d(C—H) = 0.93 Å (aromatic), 0.96 Å (—CH3), 0.97 Å (—CH2—), and Uiso(H) = 1.2Ueq(C) for CH or CH2 groups, Uiso(H) = 1.5Ueq(C) for CH3 groups.
Comment
Benzo[c]chromen-6-ones and their derivatives exist in numerous natural food resources including citrus fruits, herbs, and vegetables [5]. In addition, they also serve as the core structure of many pharmacologically active compounds with a wide range of biological activities [6], [7], [8]. As a result, they have attracted considerable interest from biological, chemical, agricultural and medicinal scientists [9], [10], [11], [12].
In the crystal structure of the title compound the pyranone ring is fused to a benzo moiety and a cyclohexenone moiety. The pyranone and the benzene ring are almost coplanar with a dihedral angle of 0.3(1)°. The cyclohexenone ring adopts an envelope conformation with C10 at the flap position (cf. the figure). The distance of C10 to the mean plane of the other five ring atoms (C7—C9/C11—C12) is 0.638(2) Å.
In the crystal, π-π interactions are observed between the two adjacent chromenoyl moieties with a distance of 3.563(4) Å.
Acknowledgement
This work was supported by the Key Science and Technology Project of Henan Province (grant No. 162102110006).
References
1 Bruker. SADABS, SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA, (2007).Suche in Google Scholar
2 Sheldrick, G. M.: A Short History of SHELX. Acta Crystallogr. A64 (2008) 112–122.10.1107/S0108767307043930Suche in Google Scholar PubMed
3 Brandenburg, K.: DIAMOND. Visual Crystal Structure Information System. Version 3.2i. Crystal Impact, Bonn, Germany.Suche in Google Scholar
4 Fan, X.; He, Y.; Cui, L.; Guo, S.; Wang, J.; Zhang, X.: Tandem reactions leading to benzo[c]chromen-6-ones and 3-substituted isocoumarins. Eur. J. Org. Chem. 4 (2012) 673–677.10.1002/ejoc.201101559Suche in Google Scholar
5 Myrray, R.; Mendez, J.; Brown, S.: The Natural Coumarins: Occurrence, Chemistry and Biochemistry, John Wiley & Sons, New York, USA (1982).Suche in Google Scholar
6 Matsumoto, A.; Hanawalt, P. C.: Histone H3 and heat shock protein GRP78 are selectively cross-linked to DNA by photoactivated gilvocarcin V in human fibroblasts. Cancer Res. 60 (2000) 3921–3926.Suche in Google Scholar
7 Pandey, J.; Jha, A. K.; Hajela, K.: Synthesis and biological activities of some new dibenzopyranones and dibenzopyrans: search for potential oestrogen receptor agonists and antagonists. Bioorg. Med. Chem. 12 (2004) 2239–2249.10.1016/j.bmc.2004.02.018Suche in Google Scholar PubMed
8 Sun, W.; Cama, L. D.; Birzin, E. T.; Warrier, S.; Locco, L.; Mosley, R.; Hammond, M. L.; Rohrer, S. P.: 6H-Benzo[c]chromen-6-one derivatives as selective ERβ agonists. Bioorg. Med. Chem. Lett. 16 (2006) 1468–1472.10.1016/j.bmcl.2005.12.057Suche in Google Scholar PubMed
9 Schmidt, J. M.; Tremblay, G. B.; Pagé, M.; Mercure, J.; Feher, M.; Dunn-Dufult, R.; Peter, M. G.; Redden, P. R.: Synthesis and evaluation of a novel nonsteroidal-specific endothelial cell proliferation inhibitor. J. Med. Chem. 46 (2003) 1289–1292.10.1021/jm034007dSuche in Google Scholar PubMed
10 Singha, R.; Roy, S.; Nandi, S.; Ray, P.; Ray, J. K.: Palladium-catalyzed one-pot Suzuki–Miyaura cross coupling followed by oxidative lactonization: a novel and efficient route for the one-pot synthesis of benzo[c]chromene-6-ones. Tetrahedron Lett. 54 (2013) 657–660.10.1016/j.tetlet.2012.11.144Suche in Google Scholar
11 Gulcan, H. O.; Unlu, S.; Esiringu, I.; Ercetin, T.; Sahin, Y.; Oz, D.; Sahin, M. F.: Design, synthesis and biological evaluation of novel 6H-benzo[c]chromen-6-one, and 7,8,9,10-tetrahydro-benzo[c]chromen-6-one derivatives as potential cholinesterase inhibitors. Bioorg. Med. Chem. 22 (2014) 5141–5154.10.1016/j.bmc.2014.08.016Suche in Google Scholar PubMed
12 Cui, L.; He, Y.; Fan, X.: 3,4-Dihydro-1H-benzo[c]chromene-1,6(2H)-dione. Acta Crystallogr. E69 (2013) o754.10.1107/S1600536813010210Suche in Google Scholar PubMed PubMed Central
©2017 Rui Song et al., published by De Gruyter, Berlin/Boston
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Artikel in diesem Heft
- Cover and Frontmatter
- Crystal structure of 2,5-diiodo-4-nitro-1H-imidazole hemihydrate, C6H4I4N6O5
- Crystal structure of catena-poly[μ2-2,2′-(1,3-phenylene)diacetato-κ4O,O′:O′′,O′′′)-(μ2-1,6-bis(2-methyl-1H-benzo[d]imidazol-1-yl)hexane-κ2N:N′)cadmium(II)], C32H34CdN4O4
- Crystal structure of poly[aqua-(2,2′-bipyridine-κN,N′)-(μ4-5,5′-(hexane-1,6-diyl)-bis(oxy)diisophthalato κ8O1,O2:O3,O4:O5,O6:O7,O8)manganese(II)], C21H21MnN2O7
- Crystal structure of poly-[(μ2-((1,3-bis(benzimidazol-1-yl)propane-κ2N:N′)(μ2-4-tert-butyl-phthalato-κ2O:O′)cobalt(II)] monohydrate, C29H30CoN4O5
- Crystal structure of 2-amino-4-(3,4,5-trimethoxy-phenyl)-5-(oxo-5,6,7,8-tetrahydro-4H-chromene)-3-carbonitrile – ethanol (1/1), C21H26N2O6
- Crystal structure of ethyl 1-benzyl-5-phenyl-1H-pyrazole-3-carboxylate, C19H18N2O2
- Crystal structure of 2-(1-benzyl-3-phenyl-1H-pyrazol-5-yl)-5-(4-nitrobenzylthio)-1,3,4-oxadiazole, C25H19N5O3S
- Structure and photochromism of 1,2-bis[2-methyl-5-(2-chlorophenyl)-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C27H16Cl2F6S2
- The crystal structure of the Schiff base (E)-2,6-diisopropyl-N-(pyridin-4-ylmethylene)aniline, C18H22N2
- Crystal structure of (E)-2,4-dibromo-6-(((4-methyl-2-nitrophenyl)imino) methyl)phenol, C10H14Br2N2O3
- Crystal structure of (bis(2,2′-bipyridine-κ2N,N′))-(3,5-dinitrosalicylato-κ2O,O′)nickel(II), C27H18N6NiO7
- Crystal structure of 1-(diethoxy phosphonomethyl) 2-benzoyl-3-chloro-2-cyclohexen-1-ol, C18H24ClO5P
- Crystal structure of tetraaqua-bis(1,3-benzimidazol-3-ium-1,3-diacetato-κO)copper(II) hemihydrate, C22H27CuN4O12.50
- Crystal structure of 1α,11-dihydroxyeremophil-9-en-8-one, C15H24O3
- Crystal structure of 1-ferrocenylsulfonyl-1H-imidazo[4,5-b]pyridine, C16H13FeN3O2S
- Crystal structure of bis(μ2-azido-κ2N:N)-dichlorido-bis(μ2-2-(pyridin-2-yl)ethan-1-ol-κ2O,N)dicopper(II), C14H18Cl2Cu2N8O2
- Crystal structure of (5,15-cis-bis(2-hydroxy-1-naphthyl)-10-phenyl-20-(4-hydroxyphenyl)-porphyrinato)-(pyridine)-zinc(ii) pyridine solvate, C67H47N7O3Zn
- Crystal structure of (μ2-[2,2′-bis(diphenylphosphino)-1,1′-binaphthalene oxide-κ2O,P])-iodido copper(I), C44H32CuIOP2
- Crystal structure of 6,8-diphenyl-2-(4-fluorophenyl)-2,3-dihydroquinolin-4(3H)-one, C27H20FNO
- Crystal structure of 5,11,17,23-tetra(tert-butyl)-25,26,27,28-tetrahexoxycalix[4]arene, C68H104O4
- Crystal structure of N,N′–bis(pyridin-4-ylmethyl)pyrazine-2,3-dicarboxamide dihydrate, C18H20N6O4
- Crystal structure of a diaqua-bis(3,5-di(1H-imidazol-1-yl)pyridine-κN)-bis(2-(4-carboxy-phenyl)acetato-κO]manganese(II), C40H36MnN10O10
- Crystal structure of 4-(4-hydroxy-3-methoxy-phenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid methyl ester, C21H25NO5
- Crystal structure of (E)-4,4′-(ethene-1,2-diyl)bis(3-nitrobenzoic acid) 1.5 hydrate, C16H13N2O9.5
- Crystal structure of (E)-2-(5-(4-fluorophenyl)-3-(furan-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-5-((4-fluorophenyl)diazenyl)-4-methylthiazole, C23H17F2N5OS
- Crystal structure of the co-crystalline adduct 4-((4,4-dimethyl-2,6-dioxocyclohexylidene)methylamino)-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide - acetic acid (1/1), C21H24N4O4S ⋅ C2H4O2
- Synthesis and crystal structure of 2-((5-chlorobenzo[c][1,2,5]thiadiazol-4-yl)amino)-4,5-dihydro-1H-imidazol-3-ium tetraphenylborate, C33H29BClN5S
- Crystal structure of (4-chlorophenyl)(3-ferrocenyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)methanone, C21H14ClF3FeN2O
- Crystal structure of (S)-benzyl 3-(benzylcarba-moyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate, C25H24N2O3
- Crystal structure of 5-acetyl-3-(3-fluoro-4-morpholinophenyl)oxazolidin-2-one, C15H17FN2O4
- Crystal structure of 2-(4-fluorophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16FIN2
- Crystal structure of methyl 1H-indole-2-carboxylate, C10H9NO2
- Crystal structure of 2,3-diphenyl-1-[(dipropylamino)acetyl]-1,3-diazaspiro[4.5]decan-4-one, C28H37N3O2
- Crystal structure of 1-(2H-1,3-benzodioxol-5-yl)-3-(1H-imidazol-1-yl)propan-1-one, C13H12N2O3
- Crystal structure of 2,9-dibromo-1,10-phenanthroline, C12H6Br2N2
- Crystal structure of 3-(adamantan-1-yl)-4-(4-fluorophenyl)-1H-1,2,4-triazole-5(4H)-thione, C18H20FN3S
- Crystal structure of trans-bis((E)-7-oxo-4-(phenyldiazenyl)cyclohepta-1,3,5-trien-1-olato)-κ2O,O′)-bis(pyridine-κN)cobalt(II), C36H28CoN6O4
- Crystal structure of 2-(4-methyl-3-phenylthiazol-2(3H)-ylidene)malononitrile, C13H9N3S
- Crystal structure of (Z)-3-(adamantan-1-yl)-1-(3-chlorophenyl)-S-benzylisothiourea, C24H27ClN2S
- Crystal structure of chlorido{[3-(η5-cyclopenta-dienyl)-2,2,3-trimethyl-1-phenylbutylidene] azanido-κN}[η2(N,O)-N,N-dimethylhydroxylaminato]titanium(IV), C20H27ClN2OTi
- Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C12H14Cl4N2Zn
- Crystal structure of 5-nitro-2-(pyrrolidin-1-yl)benzaldehyde, C11H12N2O3
- Crystal structure of 2,3-diphenyl-1-(morpholin-4-ylacetyl)-1,3-diazaspiro[4.5]decan-4-one, C26H31N3O3
- Crystal structure of 3,3-dimethyl-3,4-dihydro-1H-benzo[c]chromene-1,6(2H)-dione, C15H14O3
- Crystal structure of bis(2-(2-hydroxymethyl)pyridine-κ2N,O)-bis(pivalato-κO)nickel(II), C22H32N2NiO6
- Crystal structure of (1,10-phenanthroline-κ2N,N′)-bis(1H-pyrazole-3-carboxylato-κ2N,O)manganese(II) trihydrate, C20H20N6O7Mn
- The crystal structure of 3-aminopropan-1-aminium iodide, C3H11N2I
- Crystal structure of ethyl 1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazole-4 carboxylate, C12H12ClN3O2
- Crystal structure of 4,4′-((1Z,1′Z)-2,2′-(2,5-diethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dipyridine, C24H24N2O2
- Crystal structure of (16S)-12,16-epoxy-11,14-dihydroxy-17(15/16)-abeo-3a,18-cyclo-8,11,13-abietatrien-7-one, C20H24O4
- Crystal structure of aquadichlorido(2,4,6-tri-2-pyridyl-1,3,5-triazine-κ3N,N′,N′′)nickel(II) monohydrate, C18H16Cl2N6NiO2
- Crystal structure of catena-poly[dichlorido-(μ-ethane-1,2-diyl-bis-(pyridyl-4-carboxylate-κN:N′)mercury(II)], C15H14Cl2HgN2O4
- Crystal structure of methyl 2-acetamido-5-chlorbenzoate, C10H10ClNO3
- Crystal structure of tetrakis(μ2-3,3-dimethylacrylato-κ2O,O′)-bis(2-aminopyrimidine-κN) dicopper(II), C28H38Cu2N6O8
- Crystal structure of 3-amino-8-methoxy-1-phenyl-1H-benzo[f]chromene-2-carbonitrile, C21H16N2O2
- Crystal structure of 4-(2-ammonioethyl)morpholin-4-ium dichloride monohydrate, C6H18Cl2N2O2
- Crystal structure of 1-(3-((5-bromo-2-hydroxybenzylidene)amino)phenyl)ethanone O-benzyl oxime, C22H19BrN2O2
- Crystal structure of 2-(4-(dimethylamino)-2-fluorophenyl)-1,3-bis(1H-1,2,4-triazol-1-yl)propan-2-ol monohydrate, C15H20FN7O2
- Crystal structure of 4-bromo-2-(1H-pyrazol-3-yl)phenol, C9H7BrN2O
- Crystal structure of 1,2,3,4,5-pentamethyl-1,3-cyclopentadiene, C10H16
Artikel in diesem Heft
- Cover and Frontmatter
- Crystal structure of 2,5-diiodo-4-nitro-1H-imidazole hemihydrate, C6H4I4N6O5
- Crystal structure of catena-poly[μ2-2,2′-(1,3-phenylene)diacetato-κ4O,O′:O′′,O′′′)-(μ2-1,6-bis(2-methyl-1H-benzo[d]imidazol-1-yl)hexane-κ2N:N′)cadmium(II)], C32H34CdN4O4
- Crystal structure of poly[aqua-(2,2′-bipyridine-κN,N′)-(μ4-5,5′-(hexane-1,6-diyl)-bis(oxy)diisophthalato κ8O1,O2:O3,O4:O5,O6:O7,O8)manganese(II)], C21H21MnN2O7
- Crystal structure of poly-[(μ2-((1,3-bis(benzimidazol-1-yl)propane-κ2N:N′)(μ2-4-tert-butyl-phthalato-κ2O:O′)cobalt(II)] monohydrate, C29H30CoN4O5
- Crystal structure of 2-amino-4-(3,4,5-trimethoxy-phenyl)-5-(oxo-5,6,7,8-tetrahydro-4H-chromene)-3-carbonitrile – ethanol (1/1), C21H26N2O6
- Crystal structure of ethyl 1-benzyl-5-phenyl-1H-pyrazole-3-carboxylate, C19H18N2O2
- Crystal structure of 2-(1-benzyl-3-phenyl-1H-pyrazol-5-yl)-5-(4-nitrobenzylthio)-1,3,4-oxadiazole, C25H19N5O3S
- Structure and photochromism of 1,2-bis[2-methyl-5-(2-chlorophenyl)-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C27H16Cl2F6S2
- The crystal structure of the Schiff base (E)-2,6-diisopropyl-N-(pyridin-4-ylmethylene)aniline, C18H22N2
- Crystal structure of (E)-2,4-dibromo-6-(((4-methyl-2-nitrophenyl)imino) methyl)phenol, C10H14Br2N2O3
- Crystal structure of (bis(2,2′-bipyridine-κ2N,N′))-(3,5-dinitrosalicylato-κ2O,O′)nickel(II), C27H18N6NiO7
- Crystal structure of 1-(diethoxy phosphonomethyl) 2-benzoyl-3-chloro-2-cyclohexen-1-ol, C18H24ClO5P
- Crystal structure of tetraaqua-bis(1,3-benzimidazol-3-ium-1,3-diacetato-κO)copper(II) hemihydrate, C22H27CuN4O12.50
- Crystal structure of 1α,11-dihydroxyeremophil-9-en-8-one, C15H24O3
- Crystal structure of 1-ferrocenylsulfonyl-1H-imidazo[4,5-b]pyridine, C16H13FeN3O2S
- Crystal structure of bis(μ2-azido-κ2N:N)-dichlorido-bis(μ2-2-(pyridin-2-yl)ethan-1-ol-κ2O,N)dicopper(II), C14H18Cl2Cu2N8O2
- Crystal structure of (5,15-cis-bis(2-hydroxy-1-naphthyl)-10-phenyl-20-(4-hydroxyphenyl)-porphyrinato)-(pyridine)-zinc(ii) pyridine solvate, C67H47N7O3Zn
- Crystal structure of (μ2-[2,2′-bis(diphenylphosphino)-1,1′-binaphthalene oxide-κ2O,P])-iodido copper(I), C44H32CuIOP2
- Crystal structure of 6,8-diphenyl-2-(4-fluorophenyl)-2,3-dihydroquinolin-4(3H)-one, C27H20FNO
- Crystal structure of 5,11,17,23-tetra(tert-butyl)-25,26,27,28-tetrahexoxycalix[4]arene, C68H104O4
- Crystal structure of N,N′–bis(pyridin-4-ylmethyl)pyrazine-2,3-dicarboxamide dihydrate, C18H20N6O4
- Crystal structure of a diaqua-bis(3,5-di(1H-imidazol-1-yl)pyridine-κN)-bis(2-(4-carboxy-phenyl)acetato-κO]manganese(II), C40H36MnN10O10
- Crystal structure of 4-(4-hydroxy-3-methoxy-phenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid methyl ester, C21H25NO5
- Crystal structure of (E)-4,4′-(ethene-1,2-diyl)bis(3-nitrobenzoic acid) 1.5 hydrate, C16H13N2O9.5
- Crystal structure of (E)-2-(5-(4-fluorophenyl)-3-(furan-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-5-((4-fluorophenyl)diazenyl)-4-methylthiazole, C23H17F2N5OS
- Crystal structure of the co-crystalline adduct 4-((4,4-dimethyl-2,6-dioxocyclohexylidene)methylamino)-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide - acetic acid (1/1), C21H24N4O4S ⋅ C2H4O2
- Synthesis and crystal structure of 2-((5-chlorobenzo[c][1,2,5]thiadiazol-4-yl)amino)-4,5-dihydro-1H-imidazol-3-ium tetraphenylborate, C33H29BClN5S
- Crystal structure of (4-chlorophenyl)(3-ferrocenyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)methanone, C21H14ClF3FeN2O
- Crystal structure of (S)-benzyl 3-(benzylcarba-moyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate, C25H24N2O3
- Crystal structure of 5-acetyl-3-(3-fluoro-4-morpholinophenyl)oxazolidin-2-one, C15H17FN2O4
- Crystal structure of 2-(4-fluorophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16FIN2
- Crystal structure of methyl 1H-indole-2-carboxylate, C10H9NO2
- Crystal structure of 2,3-diphenyl-1-[(dipropylamino)acetyl]-1,3-diazaspiro[4.5]decan-4-one, C28H37N3O2
- Crystal structure of 1-(2H-1,3-benzodioxol-5-yl)-3-(1H-imidazol-1-yl)propan-1-one, C13H12N2O3
- Crystal structure of 2,9-dibromo-1,10-phenanthroline, C12H6Br2N2
- Crystal structure of 3-(adamantan-1-yl)-4-(4-fluorophenyl)-1H-1,2,4-triazole-5(4H)-thione, C18H20FN3S
- Crystal structure of trans-bis((E)-7-oxo-4-(phenyldiazenyl)cyclohepta-1,3,5-trien-1-olato)-κ2O,O′)-bis(pyridine-κN)cobalt(II), C36H28CoN6O4
- Crystal structure of 2-(4-methyl-3-phenylthiazol-2(3H)-ylidene)malononitrile, C13H9N3S
- Crystal structure of (Z)-3-(adamantan-1-yl)-1-(3-chlorophenyl)-S-benzylisothiourea, C24H27ClN2S
- Crystal structure of chlorido{[3-(η5-cyclopenta-dienyl)-2,2,3-trimethyl-1-phenylbutylidene] azanido-κN}[η2(N,O)-N,N-dimethylhydroxylaminato]titanium(IV), C20H27ClN2OTi
- Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C12H14Cl4N2Zn
- Crystal structure of 5-nitro-2-(pyrrolidin-1-yl)benzaldehyde, C11H12N2O3
- Crystal structure of 2,3-diphenyl-1-(morpholin-4-ylacetyl)-1,3-diazaspiro[4.5]decan-4-one, C26H31N3O3
- Crystal structure of 3,3-dimethyl-3,4-dihydro-1H-benzo[c]chromene-1,6(2H)-dione, C15H14O3
- Crystal structure of bis(2-(2-hydroxymethyl)pyridine-κ2N,O)-bis(pivalato-κO)nickel(II), C22H32N2NiO6
- Crystal structure of (1,10-phenanthroline-κ2N,N′)-bis(1H-pyrazole-3-carboxylato-κ2N,O)manganese(II) trihydrate, C20H20N6O7Mn
- The crystal structure of 3-aminopropan-1-aminium iodide, C3H11N2I
- Crystal structure of ethyl 1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazole-4 carboxylate, C12H12ClN3O2
- Crystal structure of 4,4′-((1Z,1′Z)-2,2′-(2,5-diethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dipyridine, C24H24N2O2
- Crystal structure of (16S)-12,16-epoxy-11,14-dihydroxy-17(15/16)-abeo-3a,18-cyclo-8,11,13-abietatrien-7-one, C20H24O4
- Crystal structure of aquadichlorido(2,4,6-tri-2-pyridyl-1,3,5-triazine-κ3N,N′,N′′)nickel(II) monohydrate, C18H16Cl2N6NiO2
- Crystal structure of catena-poly[dichlorido-(μ-ethane-1,2-diyl-bis-(pyridyl-4-carboxylate-κN:N′)mercury(II)], C15H14Cl2HgN2O4
- Crystal structure of methyl 2-acetamido-5-chlorbenzoate, C10H10ClNO3
- Crystal structure of tetrakis(μ2-3,3-dimethylacrylato-κ2O,O′)-bis(2-aminopyrimidine-κN) dicopper(II), C28H38Cu2N6O8
- Crystal structure of 3-amino-8-methoxy-1-phenyl-1H-benzo[f]chromene-2-carbonitrile, C21H16N2O2
- Crystal structure of 4-(2-ammonioethyl)morpholin-4-ium dichloride monohydrate, C6H18Cl2N2O2
- Crystal structure of 1-(3-((5-bromo-2-hydroxybenzylidene)amino)phenyl)ethanone O-benzyl oxime, C22H19BrN2O2
- Crystal structure of 2-(4-(dimethylamino)-2-fluorophenyl)-1,3-bis(1H-1,2,4-triazol-1-yl)propan-2-ol monohydrate, C15H20FN7O2
- Crystal structure of 4-bromo-2-(1H-pyrazol-3-yl)phenol, C9H7BrN2O
- Crystal structure of 1,2,3,4,5-pentamethyl-1,3-cyclopentadiene, C10H16