Gold(I)-Catalyzed Enantioselective Intramolecular Dehydrative Amination of Allylic Alcohols with Carbamates
作者:Paramita Mukherjee、Ross A. Widenhoefer
DOI:10.1002/anie.201107877
日期:2012.2.6
Aliphatic nitrogen heterocycles—either five‐ or six‐membered—are formed in high yield and with up to 94 % ee when a 1:2 mixture of [(S)‐2](AuCl)2 and AgClO4 is used as the catalyst for the title reaction.
Gold(I)-Catalyzed Intramolecular Amination of Allylic Alcohols With Alkylamines
作者:Paramita Mukherjee、Ross A. Widenhoefer
DOI:10.1021/ol103175w
日期:2011.3.18
A 1:1 mixture of (1)AuCl [1 = P(t-Bu)2o-biphenyl] and AgSbF6 catalyzes the intramolecular amination of allylic alcohols with alkylamines to form substituted pyrrolidine and piperidine derivatives. Gold(I)-catalyzed cyclization of (R,Z)-8-(N-benzylamino)-3-octen-2-ol (96% ee, 95% de) led to isolation of (R,E)-1-benzyl-2-(1-propenyl)piperidine in 99% yield with 96% ee, consistent with the net syn addition