Regioselective reductions of 2,3-epoxy acetals with zinc-chlorotrimethylsilane and lithium aluminium hydride: convenient synthesis of 1,2 and 1,3-diones
作者:Yashwant D. Vankar、Narayan C. Chaudhuri、C.Trinadha Rao
DOI:10.1016/s0040-4039(00)95779-4
日期:1987.1
A variety of 2,3-epoxy acetals have been found to undergo regioselective reductions with zinc-chlorotrimethylsilane and lithium aluminium hydride to give 2-hydroxy and 3-hydroxy acetals respectively. Their oxidation followed by hydrolysis furnished the corresponding 1,2- and 1,3-diones in good yields.
已经发现各种2,3-环氧乙缩醛用锌-氯代三甲基硅烷和氢化铝锂进行区域选择性还原,分别得到2-羟基和3-羟基乙缩醛。它们的氧化然后水解,以良好的产率提供了相应的1,2-和1,3-二酮。