The first enantioselective syntheses of vicinal difluoropyrrolidines and the first catalytic asymmetric synthesis mediated by the C2 symmetry of a –CHFCHF– unit
作者:Charles M. Marson、Robert C. Melling
DOI:10.1039/a801718b
日期:——
The first enantiopure vicinal difluorides of C2 symmetry have been prepared by the introduction of fluorine at both centres in a single operation; the first asymmetric synthesis using a catalyst whose chirality depends on organofluorine asymmetry is described.
Enantioselective Syntheses of <i>trans</i>-3,4-Difluoropyrrolidines and Investigation of Their Applications in Catalytic Asymmetric Synthesis
作者:Charles M. Marson、Robert C. Melling
DOI:10.1021/jo0513414
日期:2005.11.1
Asymmetric Syntheses of enantiopure trans-3,4-difluoropyrrolidines have been prepared by the introduction of fluorine at both centers in a single operation; asymmetric epoxidations and additions to benzaldehyde were conducted using catalysts whose chirality depends on organofluorine asymmetry.
822. Aryl-2-halogenoalkylamines. Part X. The preparation of some derivatives of 1-aryl-3 : 4-dihalogenopyrrolidines and 1 : 4-bisarylamino-2 : 3-dihalogenobutanes