作者:Takashi Kippo、Kanako Hamaoka、Mitsuhiro Ueda、Takahide Fukuyama、Ilhyong Ryu
DOI:10.1016/j.tet.2016.05.084
日期:2016.12
The full scope (30 examples) of the radical bromoallylation of alkynes using allyl bromides was studied. In this reaction, bromine radical adds to alkynes to form vinyl radicals, which then undergo an SH2′ reaction with allyl bromides to produce good yields of 1-bromo-1,4-dienes with the liberation of a bromine radical, which creates a radical chain. The sp2-carbon–bromine bond of the product dienes
研究了使用烯丙基溴对炔烃进行自由基溴代烯丙基化的全部范围(30个实例)。在该反应中,溴自由基加成炔基,形成乙烯基自由基,然后与烯丙基溴进行S H 2'反应,生成良好的1-溴-1,4-二烯收率,并释放出溴自由基。根链。产物二烯的sp 2-碳-溴键通过交叉偶联和羰基化反应进一步官能化。