Hydrazones behave as highly reactive species in the allylation under Barbier conditions. Nucleophilic addition of an alkyllithium to the carbonyl moiety of the glyoxal mono-hydrazone followed by indium-mediated allylation, leads in high yields to bis-functionalized 1,2-diols in a one-pot two-step reaction.
在Barbier条件下,
肼酮表现为高度反应活性物质。烷基
锂对醛酮单
肼的羰基部分进行亲核加成,随后通过印媒介催化的烯丙基化反应,能在一步两阶段反应中高产率地得到双功能化的1,2
-二醇。