Abstract
In the title compound, C25H23NO4, the pyran ring of the chroman moiety has an envelope conformation with the methylene 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 molecules are linked via C—H⋯π interactions, forming a two-dimensional network lying parallel to (10-1).
Highlights
In the title compound, C25H23NO4, the pyran ring of the chroman moiety has an envelope conformation with the methylene C atom as the flap
The isoxazole ring has a twist conformation on the O—C bond
There are no classical hydrogen bonds; the molecules are linked via C—HÁ Á Á interactions, forming a two-dimensional network lying parallel to (101)
Summary
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). Related literature For the biological activity of isoxazoline derivatives, see: Kozikowski (1984); Howe & Shelton (1990); Bakthadoss & Murugan (2010). For the synthesis of chromenoisoxazolidines by intramolecular 1,3-dipolar cycloadditions, see: Bakthadoss & Murugan (2010). See: Allen et al (1987)
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