title: Double γ-alkylation of allylic phosphorus ylides: a unique access to oxa-bicyclic[3.3.0] diene skeletons.
abstract: A new ylide-initiated tandem cyclization reaction based on γ-dialkylation of allylic ylides has been realized, delivering a series of [3.3.0] oxa-bicyclic dienes in high yields with perfect diastereoselectivity.
authors.affiliation: State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China. tangy@sioc.ac.cn.
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Saihu
authors.initials: S
authors.lastname: Liao
authors.forename: Jian-Bo
authors.initials: JB
authors.lastname: Zhu
authors.forename: Yong
authors.initials: Y
authors.lastname: Tang