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Methyl 6-eth-oxy-3-phenyl-3a,4-dihydro-3H-chromeno[4,3-c]isoxazole-3a-car-boxylate.

ABSTRACT: In the title compound, C(20)H(19)NO(5), the dihedral angle between the mean plane of the pyran ring (which has a half-chair conformation) and the benzene ring of the chromeno ring system is 7.21?(7)°. The dihedral angle between the mean plane of the chromeno ring system and the isoxazole ring is 21.78?(6)°, while the isoxazole ring forms a dihedral angle of 72.60?(8)° with the attached phenyl ring. In the crystal, mol-ecules are linked via pairs of C-H?O hydrogen bonds, forming inversion dimers with an R(2) (2)(10) ring motif. These dimers are linked via C-H?N hydrogen bonds, forming chains along [001].

SUBMITTER: Suresh G

PROVIDER: S-EPMC3569242 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature

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Methyl 6-eth-oxy-3-phenyl-3a,4-dihydro-3H-chromeno[4,3-c]isoxazole-3a-car-boxylate.

Suresh G G Srinivasan J J Bakthadoss M M Aravindhan S S

Acta crystallographica. Section E, Structure reports online 20130104 Pt 2

In the title compound, C(20)H(19)NO(5), the dihedral angle between the mean plane of the pyran ring (which has a half-chair conformation) and the benzene ring of the chromeno ring system is 7.21 (7)°. The dihedral angle between the mean plane of the chromeno ring system and the isoxazole ring is 21.78 (6)°, while the isoxazole ring forms a dihedral angle of 72.60 (8)° with the attached phenyl ring. In the crystal, mol-ecules are linked via pairs of C-H⋯O hydrogen bonds, forming inversion dimers ...[more]

PMID: 23424465

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