SYNTHESIS OF ALPHA-AMINO-ACIDS BY RING-OPENING OF AZIRIDINE-2-CARBOXYLATES WITH CARBON NUCLEOPHILES

被引:70
作者
CHURCH, NJ [1 ]
YOUNG, DW [1 ]
机构
[1] UNIV SUSSEX,SCH CHEM & MOLEC SCI,BRIGHTON BN1 9QJ,E SUSSEX,ENGLAND
关键词
D O I
10.1016/0040-4039(94)02198-K
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Excellent regiospecificity has been achieved in the reaction of carbon nucleophiles with N-para-toluenesulfonylaziridine-2-carboxylic acid (6, R = H) protected as the anion. This has been developed into a general and high yielding synthesis of optically pure alpha-amino acids containing one chiral centre. When the aziridine (20) containing a second chiral centre was used, only lithium trimethylsilylacetylide gave the desired alpha-amino acid. Reaction with higher order cuprates gave lower yields, the principal products being the protected beta-amino acids (22) and (23).
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页码:151 / 154
页数:4
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