Mild and Metal-Free Regioselective 1,2-Addition of Carbon Nucleophiles to α,β-Unsaturated Imines
摘要:
A mild and metal-free regioselective 1,2-addition of carbon nucleophiles to alpha,beta-unsaturated imines has been developed. Good yields and total regioselectivities were achieved by addition of p-nitrobenzyl chloride or 2,3-bis(bromomethyl)quinoxaline to alpha,beta-unsaturated tosylimines.
Stereoselective synthesis of trans-β-lactams by palladium-catalysed carbonylation of vinyl aziridines
作者:Francesco Fontana、Gian Cesare Tron、Nekane Barbero、Serena Ferrini、Stephen P. Thomas、Varinder K. Aggarwal
DOI:10.1039/b920564k
日期:——
The palladium-catalysedcarbonylation of vinyl aziridines can give either the trans- or cis-beta-lactam preferentially or even the delta-lactam simply by adjusting the reaction parameters ([Pd], [CO], temperature).