Methyl 7-chloro-2-ethylsulfanyl-6-fluoro-4-oxo-4H-thiochromene-3-carboxylate
نویسندگان
چکیده
In the title compound, C(13)H(10)ClFO(3)S(2), the two-ring system is essentially planar, the mean plane of the benzene ring being inclined at 6.0 (2)° to the plane of the remaining four atoms. The ethyl-sulfanyl group is almost coplanar with the two rings [dihedral angle = 6.4 (2)°], while the carboxyl-ate group is almost perpendicular to it [dihedral angle = 72.4 (2)°]. In the crystal structure, inter-molecular C-H⋯O and C-H⋯F hydrogen bonds link the mol-ecules in a stacked arrangement along the a axis.
منابع مشابه
Ethyl 7-chloro-1-cyclopropyl-6-fluoro-8-nitro-4-oxo-1,4-dihydroquinoline-3-carboxylate
In the title compound, C(15)H(12)ClFN(2)O(5), mol-ecules are packed in the crystal lattice in a parallel fashion sustained by various C-H⋯O [C⋯O = 3.065 (5)-3.537 (5) Å] and C-H⋯Cl [3.431 (5)-3.735 (4) Å] inter-actions.
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The crystal structures of two chromone derivatives, viz. ethyl 6-(4-methyl-phen-yl)-4-oxo-4H-chromene-2-carboxyl-ate, C19H16O4, (1), and ethyl 6-(4-fluoro-phen-yl)-4-oxo-4H-chromene-2-carboxyl-ate C18H13FO4, (2), have been determined: (1) crystallizes with two mol-ecules in the asymmetric unit. A comparison of the dihedral angles beween the mean planes of the central chromone core with those of...
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A series of 2-(5-(6-Bromo-2-methyl-4-oxoquinazolin-3(4H)-yl)-4H-1,2,4-triazole-3-ylthio)-N-(substituted benzylidene) acetohydrazides (5a-5l) have been synthesized via condensation of 2-(5-(6-Bromo-2-methyl-4-oxaquinazolin-3 (4H)-yl)-4H-1,2,4-triazole-3-ylthio)acetohydrazide (4) with different aromatic aldehydes. Cycloaddition of thioglycolic acid with 5a-5l yielded 2-[5-(6-Bromo-2-methyl-4-oxoq...
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010