rac-(E, trans)-4-Bromo-10,10-dimethyl-9,11-dioxabi-cyclo-[6.3.0]undec-4-ene

IUCrdata. 2020 Sep 30;5(Pt 9):x201302. doi: 10.1107/S2414314620013024. eCollection 2020 Sep.

Abstract

In the title compound, a cyclo-octene ring in a twist-boat conformation and a dioxolane ring with a distorted envelope conformation are annulated in a trans configuration. Alternating strands of single enanti-omers build up the crystal. Within the strands, the mol-ecules are connected by weak C-H⋯O hydrogen bonds.

Keywords: bromine; crystal structure; heterocycles; medium-sized ring.