Azo anions in systhesis. pt 1. t-butylhydrazones as acyl-anion equivalents
作者:Jack E. Baldwin、Robert M. Adlington、Jeffrey C. Bottaro、Jayant N. Kolhe、Matthew W.D. Perry、Ashok U. Jain
DOI:10.1016/s0040-4020(01)87647-x
日期:1986.1
tautomerisation and hydrolysis gave α-hydroxy ketones, ketones, and γ-keto esters in good yield, thereby providing a convenient new acyl-anion equivalent. Reaction of these lithium salts with aldehydes and ketones, followed by elimination provided a new route to azo alkenes.
醛-丁基hydr的锂盐与亲电子试剂(醛,酮,卤代烷,巴豆酸酯)反应生成陷获的-丁基偶氮化合物;互变异构化和水解以良好的产率得到α-羟基酮,酮和γ-酮酯,从而提供了方便的新的酰基-阴离子当量。这些锂盐与醛和酮的反应,然后消除,提供了一条通往偶氮烯烃的新途径。