Open Access1‐Isopropyl‐6,6,8a‐trimethyl‐1,3a,5,6,7,8a‐hexahydro‐3 H ‐1‐benzofuro[2,3‐ b ]pyrrole‐2,4‐dione
Author(s) -
Narasegowda R. N.,
Yathirajan H. S.,
Lynch D. E.,
Narasimhamurthy T.,
Rathore R. S.
Publication year - 2006
Publication title -
acta crystallographica section e
Language(s) - English
Resource type - Journals
ISSN - 1600-5368
DOI - 10.1107/s1600536806006180
Subject(s) - pyrrolidine , intramolecular force , chemistry , ring (chemistry) , pyrrole , hydrogen bond , stereochemistry , isopropyl , benzofuran , medicinal chemistry , molecule , organic chemistry
The crystal structure of the title benzofuran derivative, C 16 H 23 NO 3 , has been elucidated. The tricyclic core, i.e. the tetrahydrobenzo–dihydrofuro–pyrrolidine ring system, is non‐planar owing to the folding of the five‐membered rings at their cis junction. The cyclohexene ring assumes a half‐chair conformation, while the dihydrofuran and pyrrolidine rings each adopt an envelope conformation. Intramolecular C—H⋯O hydrogen bonds form S (6) closed patterns.