Methyl 1-phenyl-3-p-tolyl-1,9b-di-hydro-3H-chromeno[4,3-c]isoxazole-3a(4H)-carboxyl-ate.
In the title compound, C25H23NO4, the pyran ring of the chroman moiety has an envelope conformation with the methyl-ene C atom as the flap. The isoxazole ring has a twist conformation on the O-C bond. The dihedral angle between their mean planes is 57.87 (9)°. The attached phenyl and benzene rings are twisted away from its mean plane by 56.19 (10) and 50.57 (10)°, respectively. These two rings are normal to each other, subtending a dihedral angle of 89.2 (1)°. In the crystal, there are no classical hydrogen bonds; the mol-ecules are linked via C-H⋯π inter-actions, forming a two-dimensional network lying parallel to (10-1).
Department of Physics, Presidency College (Autonomous), Chennai 600 005, India.
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B
Raghuvarman
Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India.
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J
Srinivasan
Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India.
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M
Bakthadoss
Department of Physics, Presidency College (Autonomous), Chennai 600 005, India.
S
S
Aravindhan