Oxazolidine Ring Opening and Isomerization to (E)-Imines. Asymmetric Synthesis of Aryl-α-fluoroalkyl Amino Alcohols
摘要:
A base-induced ring opening/imine isomerization/diastereoselective organometallic addition sequence on 4-substituted 2-perfluoroalkyl-1,3-oxazolidines has been developed for the asymmetric synthesis of aryl alpha-perfluoroalkylamine derivatives. This practical method provides chiral amino alcohols in 60-95% yield with uniformely high diastereoselectivities ranging from 35:1 to >100:1.
Oxazolidine Ring Opening and Isomerization to (E)-Imines. Asymmetric Synthesis of Aryl-α-fluoroalkyl Amino Alcohols
摘要:
A base-induced ring opening/imine isomerization/diastereoselective organometallic addition sequence on 4-substituted 2-perfluoroalkyl-1,3-oxazolidines has been developed for the asymmetric synthesis of aryl alpha-perfluoroalkylamine derivatives. This practical method provides chiral amino alcohols in 60-95% yield with uniformely high diastereoselectivities ranging from 35:1 to >100:1.