A Facile Synthesis and Characterization of Meulenhoff'S Free Acid Derived from 1, 1′-Biphenyl-2, 2′-Diol and Its Alkaloid Complexes
作者:Zixing Shan、Xiangwu Huang、Dejie Zhao
DOI:10.1080/00945710009351745
日期:2000.1.1
Les ions α-carbéniums benchrotréniques: mode de génération, exemples d'utilisation a la préparation d'amines, d'éthers et au contrôle stéréochimique lors d'attaques nucléophiles
作者:Siden Top、Gérard Jaouen
DOI:10.1016/s0022-328x(00)93566-6
日期:1980.9
Temporary complexation of benzylic alcohols by the Cr(CO)3 unit considerably enhances the stability of the carbeniumions generated from these alcohols and allows the preparation of amines, ethers by reaction of the ions with ammonia, amines or alcohols. This method also permits the total stereochemical control in the “exo” position of nucleophilicattack in the rigid series (indane, tetraline) and thus