title: rac-Methyl 3-(2-meth-oxy-phen-yl)-3a,4-di-hydro-3H-chromeno[4,3-c]isoxazole-3a-carboxyl-ate.
abstract: The title compound, C19H17NO5, comprising two stereogenic C atoms of the same configuration, crystallizes in a centrosymmetric space group as a racemate. The pyran ring adopts a half-chair conformation, while the isoxazole ring adopts an envelope conformation with the C atom bonded to the meth-oxy-phenyl group as the flap. The dihedral angle between the mean plane of the pyran ring and the adjacent benzene ring is 5.86 (5)°. In the crystal, mol-ecules are linked by a weak C-H⋯O hydrogen bond, forming a chain along the a axis.
authors.affiliation: Post Graduate and Research Department of Physics, Agurchand Manmull Jain College, Chennai 600 114, India.
authors.forename: S
authors.initials: S
authors.lastname: Paramasivam
authors.forename: J
authors.initials: J
authors.lastname: Srinivasan
authors.forename: P R
authors.initials: PR
authors.lastname: Seshadri
authors.forename: M
authors.initials: M
authors.lastname: Bakthadoss