Trapping of chiral enolates generated by Lewis acid promoted conjugate addition of Grignard reagents to unreactive Michael acceptors by various electrophiles
作者:Denisa Vargová、Juana M. Pérez、Syuzanna R. Harutyunyan、Radovan Šebesta
DOI:10.1039/c9cc05041h
日期:——
Here we show trapping of chiral enolates with carbenium ions, Michael acceptors, and bromine. Silyl ketene aminals, disilyl acetals, and aza-enolates were obtained via Lewis acid mediated enantioselective conjugateaddition of Grignard reagents to unsaturated amides, carboxylic acids and alkenyl heterocycles.