Stereoselectivities in the reactions of α-d-hexopyranosid-4-uloses with diazomethane
作者:Ken-Ichi Sato、Juji Yoshimura
DOI:10.1016/s0008-6215(00)80685-0
日期:1982.5
Abstract The stereoselectivities in the reactions of diazomethane with various α- d -hexopyranosid-4-uloses are compared with those in Grignard reactions. The results support the hypothesis that the stereoselectivity of the diazomethanereaction is mainly controlled by the attractive, electrostatic force between the diazomethyl cation and a neighbouring, axial oxygen or the axial lone-pair electrons