Organolithium/Chiral Lewis Base/BF3: a Versatile Combination for the Enantioselective Desymmetrization ofmeso-Epoxides
作者:Emmanuel Vrancken、Alexandre Alexakis、Pierre Mangeney
DOI:10.1002/ejoc.200400745
日期:2005.4
BF3 can be used in combination with organolithium/strong Lewis base complexes for the enantioselective nucleophilic ring-opening or the carbenoidic rearrangement of various meso-oxiranes with excellent yields and ee values of up to 87 %. Mechanistic aspects of these reactions are considered.
BF3 可与有机锂/强路易斯碱配合物结合使用,用于对映选择性亲核开环或各种内消旋环氧乙烷的碳烯重排,收率高,ee 值高达 87%。考虑了这些反应的机械方面。