Reaction of bis(Sym-Collidine)-Bromine(I) Hexafluorophosphate with α-Diazo Esters
摘要:
Reaction of alpha-diazo esters with bis(sym-collidine)bromine(I) hexafluorophosphate in methylene chloride at -40 degrees C led to alpha-bromo-alpha,beta-unsaturated esters.