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1-Isopropyl-6,6,8a-trimethyl-1,3a,5,6,7,8a-hexa­hydro-3H-1-benzofuro[2,3-b]pyrrole-2,4-dione

✍ Scribed by Narasegowda, R. N. ;Yathirajan, H. S. ;Lynch, D. E. ;Narasimhamurthy, T. ;Rathore, R. S.

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
156 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

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.

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✍ Li, Yi-Tao ;Guo, Qian-Ni 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 189 KB

The molecule of the title compound, C 22 H 36 N 6 O 6 , exhibits normal geometric parameters. Both imidazole rings adopt envelope conformations with the C O group at the flap position. The triazinane rings adopt chair conformations.