Development of general methods for the synthesis of new substituted allyl bromides as promising alkenylating agents
作者:A. I. Moskalenko、V. I. Boev
DOI:10.1134/s1070428014070069
日期:2014.7
A general procedure has been developed for the synthesis of hitherto unknown substituted allyl bromides. The procedure includes preparation of the corresponding α,β-unsaturated carboxylic acid esters from accessible ketones according to the Horner-Emmons reaction, reduction of these esters with diisobutylaluminum hydride to allylic alcohols, and substitution of the hydroxy group by bromine by the action
已经开发了用于合成迄今未知的取代的烯丙基溴的通用方法。该方法包括根据霍纳-埃蒙斯反应,从易得的酮中制备相应的α,β-不饱和羧酸酯,将其用氢化二异丁基铝还原为烯丙基醇,并通过PBr的作用将溴取代成羟基3。合成的不饱和化合物的E,Z异构体比例为3:1至4:1。