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4'-Cyano-biphenyl-4-yl 7-diethyl-amino-2-oxo-2H-chromene-3-carboxyl-ate.

ABSTRACT: In the title compound, C(27)H(22)N(2)O(4), the dihedral angles between the central benzene ring and the cyano-benzene ring and the 2H-coumarin ring system (r.m.s. deviation = 0.014?Å) are 22.95?(11) and 75.59?(8)°, respectively. Both terminal C atoms of the pendant diethyl-amino group lie to the same side of the coumarin ring system [deviations = 1.366?(2) and 1.266?(2)?Å]. In the crystal, mol-ecules are linked by C-H?O and C-H?N hydrogen bonds and a C-H?? inter-action, generating a three-dimensional network.

SUBMITTER: Sreenivasa S

PROVIDER: S-EPMC3569796 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Menthyl 2-oxo-2H-chromene-3-carboxyl-ate.

Project description:The title compound, C(20)H(24)O(4), was synthesized from the reaction of 2-oxo-2H-chromene-3-acyl chloride and menthol. The mean plane of the ester group and that of the four essentially planar (maximum deviation 0.0112?Å) C atoms of the chair-form cyclo-hexyl ring form dihedral angles of 43.8?(3) ° and 81.8?(1)°, respectively, with the mean plane of the coumarin ring system. In the crystal structure, weak inter-molecular C-H?O hydrogen bonds connect the mol-ecules into a two-dimensional network.

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Crystal structure of 4-meth-oxy-phenyl 2-oxo-2H-chromene-3-carboxyl-ate.

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