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Crystal Structure of Spiro[2-benzoyl-cyclohexyl-4,5-diphenylpyrrolidine-3,3'-chroman-4-one]

✍ Scribed by S. Thinagar; D. Velmurugan; A. Amalraj; R. Raghunathan

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 131 KB
Volume: 35
Category: Article
ISSN: 0232-1300
DOI: 10.1002/1521-4079(200008)35:8<979::aid-crat979>3.0.co;2-f

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✦ Synopsis

3-Phenyl-chroman-4-one is the basic unit of isoflavonoids which are found in the plants of the subfamily papilionoidae of Leguminosae. They are known to possess antifungal and antibacterial properties. Crystal data of the title compound : Monoclinic, space group P2 1 /c, a = 14.021(3), b = 18.682(4), c = 11.362(2) Å, β = 95.75(3)°, R = 0.066. The two phenyl rings directly attached to the pyrrolidine ring are nearly perpendicular to it. The dihydropyrone moiety adopts a half-chair conformation while the cyclohexane ring attached to the pyrrolidine ring adopts a chair conformation. The best plane passing through the chroman-4-one moiety makes a dihedral angle of 82.2(3)° with the pyrrolidine ring. The molecule is stabilized by one intra-and two intermolecular C-H...O hydrogen bonds.

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