Aza-Michael addition of chiral hydrazines to alkylidene malonates
作者:Auxiliadora Prieto、Rosario Fernández、José M. Lassaletta、Juan Vázquez、Eleuterio Alvarez
DOI:10.1016/j.tet.2005.03.006
日期:2005.5
The conjugate spontaneous addition of chiral N,N-dialkylhydrazines 1 to dimethyl alkylidene/arylidene malonates 2, 5-10 affords the corresponding beta-hydrazino esters in moderate-to-good yields and selectivities. D-Mannitol-derived hydrazine la afforded best results, mainly due to the higher stability of the products 3, 11-16. (c) 2005 Elsevier Ltd. All rights reserved.