β-Nitro acrylic esters as precursors for the one pot synthesis of polyfunctionalized α,β-unsaturated esters
摘要:
Conjugate addition of activated methylene derivatives to beta-nitro acrylic esters in acetonitrile with DBU (2 equiv) as base, allows the one pot formation of polyfunctionalized alpha,beta-unsaturated esters. The procedure is based on a tandem 'Michael addition elimination' process favoured by the Simultaneous behaviour of the nitro group as both an electron-withdrawing and leaving group. (C) 2005 Elsevier Ltd. All rights reserved.
Addition of thionucleophiles to nitrocinnamates: approach toward synthesis of (alkyl/aryl)thio-amino acids
作者:Elzbieta Lewandowska
DOI:10.1080/17415993.2015.1107726
日期:2016.3.3
The addition of alkyl or aryl thiols to alpha-nitro or beta-nitrocinnamate in the presence of base provided Michael addition products. In the case of beta-nitro compounds reaction occurred via the formation of anti-Michael adducts. Selective nitro reduction of alpha-nitroadducts gives access to beta-thio-alpha-amino acid derivatives.
SHIN C.; KOSUGE Y.; YAMAURA M.; YOSHIMURA J., BULL. CHEM. SOC. JAP., 1978, 51, NO 4, 1137-1141