CHIRAL AMINAL TEMPLATES .6. DIASTEREOSELECTIVITY OF HYDRAZONE ALKYLATION - ASYMMETRIC-SYNTHESIS OF ALPHA-AMINOALDEHYDES

被引:53
作者
ALEXAKIS, A
LENSEN, N
MANGENEY, P
机构
[1] Laboratoire de Chimie des Organo-Eléments, associé au CNRS Université P. et M. Curie, F-75252 Paris Cedex 05, 4, Place Jussieu
关键词
D O I
10.1016/S0040-4039(00)92036-7
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Glyoxal is efficiently transformed into the chiral aminals bearing the hydrazone functionality 2a and 2b. These compounds react under complete diastereocontrol with various organolithium reagents, affording chiral hydrazines 3-9. Reduction with Raney nickel leads to aminal protected alpha-aminoaldehydes, which, in turn, are easily hydrolyzed to the free chiral aldehydes (after tBoc protection of the amine).
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页码:1171 / 1174
页数:4
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