Lithium bromide-triethylamine induced cycloaddition of N-alkylidene 2-amino esters and amides to electron-deficient olefins with high regio- and stereoselectivity
Lithium bromide-triethylamine induced cycloaddition of N-alkylidene 2-amino esters and amides to electron-deficient olefins with high regio- and stereoselectivity