Chiral azo compounds: enantioselective synthesis and transformations into β-amino alcohols and α-amino acids with a quaternary stereocenter
摘要:
Taking advantage of radical carboaminations producing azo compounds, a new chemo-enzymatic approach to enantiomerically enriched azo alcohols, beta-amino alcohols and non-natural (aromatic) amino acids with a quaternary stereocenter is reported. (C) 2010 Elsevier Ltd. All rights reserved.
Transforming Natural Amino Acids into α-Alkyl-Substituted Amino Acids with the Help of the HOF·CH<sub>3</sub>CN Complex
作者:Tal Harel、Shlomo Rozen
DOI:10.1021/jo0709450
日期:2007.8.1
α-Alkyl amino acids can be efficiently prepared in high yields from the respective amino acids themselves. The key step is the oxidation of the amine function to create the corresponding α-nitro acid in a fast and very high yield reaction followed by phase-transfer alkylation and finally reduction to the desired α-alkyl amino acid. Several such acids containing aromatic rings or additional carboxylic
Chiral azo compounds: enantioselective synthesis and transformations into β-amino alcohols and α-amino acids with a quaternary stereocenter
作者:Friedrich R. Dietz、Agnes Prechter、Harald Gröger、Markus R. Heinrich
DOI:10.1016/j.tetlet.2010.11.137
日期:2011.2
Taking advantage of radical carboaminations producing azo compounds, a new chemo-enzymatic approach to enantiomerically enriched azo alcohols, beta-amino alcohols and non-natural (aromatic) amino acids with a quaternary stereocenter is reported. (C) 2010 Elsevier Ltd. All rights reserved.