the addition of [Rh(dppe)]ClO4 to beta-sulfide-substituted aldehydes, can function as the stoichiometric reductants in reductive aldol processes. Unsaturated nitriles, esters, and ketones can be used as enolate equivalents, and a variety of simple alpha- and beta-substituted aldehydes can be employed. The use of a second, more electrophilic, aldehyde allows three-component reactions to be performed
螯合酰基
铑氢化物是通过将 [Rh(dppe)]ClO4 添加到 β-
硫化物取代的醛中生成的,可在还原醛醇过程中用作
化学计量还原剂。不饱和腈、酯和酮可用作烯醇化物等价物,并且可以使用多种简单的α-和β-取代的醛。使用第二种更亲电子的醛可以进行三组分反应。