One-Pot Procedure for the Synthesis of<i>N</i>-Substituted 2-(Arylmethyl)pyrrolidines from 1-Aryl-2-cyclopropylalkynes and Primary Amines by a Hydroamination/Cyclopropylimine Rearrangement/Reduction Sequence
作者:Kerstin Gräbe、Björn Zwafelink、Sven Doye
DOI:10.1002/ejoc.200900515
日期:2009.11
A one-pot procedure for the synthesis of N-substituted 2-(arylmethyl)pyrrolidines from 1-aryl-2-cyclopropylalkynes and primary amines is presented. The procedure proceeded first through an [Ind2TiMe2]-catalyzed regioselective hydroamination of a 1-aryl-2-cyclopropylalkyne with a primary amine. The resulting cyclopropylimine, which was not isolated, was then forced to undergo a cyclopropylimine rearrangement