centre located α- to the oxime moiety. Diastereoselectivity is greatly enhanced when the α-stereocentre constitutes part of a ring system and the absolutestereochemistry of the major cycloadduct can be accurately predicted based upon the absolutestereochemistry at the α-centre of the oxime.
Synthesis of optically active hydroxyalkylpyridines and related pyridyl amines
作者:Giorgio Chelucci、M.Antonietta Cabras、Antonio Saba
DOI:10.1016/s0957-4166(00)86272-2
日期:1994.10
2-(1-Hydroxyalkyl)pyridines have been prepared by cobalt(I)-catalyzed cocyclotrimerization reaction of O-protected alpha-hydroxynitriles with acetylene. From these compounds the related pyridyl amines have been obtained.