Pd-catalyzed asymmetric conjugate addition of arylboronic acids to 2-nitroacrylates: a facile route to β2-homophenylglycines
作者:Andreas Petri、Oliver Seidelmann、Uwe Eilitz、Frank Leßmann、Stefan Reißmann、Volkmar Wendisch、Andrey Gutnov
DOI:10.1016/j.tetlet.2013.11.015
日期:2014.1
Asymmetric conjugate addition of arylboronic acids to 2-nitroacrylamide in the presence of cationic palladium-Chiraphos complex proceeds with high yield and enantioselectivity (73-89% ee) using as low as 0.05-0.25 mol % of the catalyst. The adducts can be smoothly transformed into the corresponding beta(2)-homophenylglycines in two simple steps. (C) 2013 Elsevier Ltd. All rights reserved.