Metal-promoted cyclization. 19. Novel bicyclization of enynes and diynes promoted by zirconocene derivatives and conversion of zirconabicycles into bicyclic enones via carbonylation
Synthesis of α-iodo-α,β-unsaturated ketones by the reaction of α-silyl-α,β-unsaturated ketones with ICl or IClAlCl3
作者:Asaf Alimardanov、Ei-ichi Negishi
DOI:10.1016/s0040-4039(99)00635-8
日期:1999.5
Treatment of α-silyl-α,β-unsaturated enones, readily preparable as regio- and stereodefined compounds in high yields, with either 2 equiv. of ICl or one equiv. each of ICl and AlCl3 provides the corresponding α-iodo-α,β-unsaturated enones in high yields.