A concise synthesis of homochiral sedamines and related alkaloids. A new reductive application of Jacobsen's catalyst
摘要:
Two methods for the generation of both enantiomers of sedamine [1-methyl-2-(2-phenyl-2-hydroxy-1-ethyl)piperidine] in high optical purity have been elaborated The first utilises the lipase-mediated kinetic resolution of racemic acetates and the second involves the NaBH4 mediated: reduction of ketones catalysed by Jacobsen's catalyst. Some related applications of these reactions are also disclosed. (C) 1999 Elsevier Science Ltd. All rights reserved.
A concise synthesis of homochiral sedamines and related alkaloids. A new reductive application of Jacobsen's catalyst
摘要:
Two methods for the generation of both enantiomers of sedamine [1-methyl-2-(2-phenyl-2-hydroxy-1-ethyl)piperidine] in high optical purity have been elaborated The first utilises the lipase-mediated kinetic resolution of racemic acetates and the second involves the NaBH4 mediated: reduction of ketones catalysed by Jacobsen's catalyst. Some related applications of these reactions are also disclosed. (C) 1999 Elsevier Science Ltd. All rights reserved.