Coupling of activated esters to gramines in the presence of ethyl propiolate under mild conditions
摘要:
The coupling of activated esters to gramine derivatives is described using ethyl propiolate. A series of substrates have been prepared using these mild conditions to provide a scope and limitations for this methodology. (c) 2007 Elsevier Ltd. All rights reserved.
Alkyl 2-(Diphenylmethyleneamino)acrylates in the Synthesis of α-Amino Acids
作者:Giorgio Tarzia、Cesarino Balsamini、Gilberto Spadoni、Ermanno Duranti
DOI:10.1055/s-1988-27621
日期:——
Stable alkyl 2-(diphenylmethyleneamino)acrylates, readily prepared from glycine, are useful synthons for the synthesis of racemic 3-substituted alkyl alaninates via Michael type and Lewis acid catalyzed additions.