Palladium-catalysed alkylative cyclisation of 2,3-butadienylmalonates to γ-lactones
作者:L. Besson、J. Bazin、J. Gore、B. Cazes
DOI:10.1016/s0040-4039(00)76649-4
日期:1994.5
The palladium-catalysed reaction of vinyl halides with the anions of 1,1-dimethyl-2,3-butadienylmalonates leads to 4-dienyl gamma-lactones through an unexpected alkylative O-cyclisation pathway due to the steric demand of the alpha-allenic gem-dimethyl group.