title: Crystal structure of (1R,3S,8R,11R)-11-acetyl-3,7,7-trimethyl-10-oxatri-cyclo-[6.4.0.0(1,3)]dodecan-9-one.
abstract: The title compound, C16H24O3, is built up from three fused rings, a six-membered, a seven-membered and a three-membered ring. The absolute configuration of the title compound was determined as (1R,3S,8R,11R) based on the synthetic pathway. The six-membered ring has an half-chair conformation whereas the seven-membered ring displays a boat conformation. In the cyrstal, C-H⋯O hydrogen bonds build up a two-dimensional network parallel to (0 0 1). The crystal studied was an inversion twin with a minor twin component of 34%.
authors: Laboratoire de Physico-Chimie Moléculaire et Synthèse Organique, Département de Chimie Faculté des Sciences Semlalia BP, 2390 Marrakech 40001, Morocco.
authors: Abdoullah
authors: A
authors: Bismoussa
authors: Laboratoire de Physico-Chimie Moléculaire et Synthèse Organique, Département de Chimie Faculté des Sciences Semlalia BP, 2390 Marrakech 40001, Morocco.
authors: My Youssef
authors: MY
authors: Ait Itto
authors: Laboratoire de Chimie de Coordination, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France.
authors: Jean-Claude
authors: JC
authors: Daran
authors: Laboratoire de Physico-Chimie Moléculaire et Synthèse Organique, Département de Chimie Faculté des Sciences Semlalia BP, 2390 Marrakech 40001, Morocco.
authors: Abdelwahed
authors: A
authors: Auhmani
authors: Laboratoire de Physico-Chimie Moléculaire et Synthèse Organique, Département de Chimie Faculté des Sciences Semlalia BP, 2390 Marrakech 40001, Morocco.
authors: Aziz
authors: A
authors: Auhmani
keywords: Lactones; biological activities; crystal structure; fused rings