A convenient procedure for the preparation of α-aminoallenes using a three-component reaction of aldehyde, carbamate and propargylsilane
摘要:
A three-component reaction is described using an aldehyde, a carbamate and trimethylpropargylsilane in the presence of a Lewis acid for the production in moderate to good yield of alpha-allenyl amines. The reaction is applicable to aromatic or aliphatic aldehydes, The obtained alpha-aminoallenes are transformed into Delta(3)-pyrrolidines or amino acids by Using the reactivity of the cumulene function. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of alkyl, aryl, heterocyclic, carbohydrate and amino acid carbamates is described. The protection of the amino group in the presence of other functionality in amino acids demonstrates the importance of this method. (C) 1998 Elsevier Science Ltd. All rights reserved.
A convenient procedure for the preparation of α-aminoallenes using a three-component reaction of aldehyde, carbamate and propargylsilane
作者:Manuella Billet、Angèle Schoenfelder、Philippe Klotz、André Mann
DOI:10.1016/s0040-4039(02)00056-4
日期:2002.2
A three-component reaction is described using an aldehyde, a carbamate and trimethylpropargylsilane in the presence of a Lewis acid for the production in moderate to good yield of alpha-allenyl amines. The reaction is applicable to aromatic or aliphatic aldehydes, The obtained alpha-aminoallenes are transformed into Delta(3)-pyrrolidines or amino acids by Using the reactivity of the cumulene function. (C) 2002 Elsevier Science Ltd. All rights reserved.