Fritsch–Buttenberg–Wiechell rearrangement to alkynes from gem-dihaloalkenes with lanthanum metal
作者:Rui Umeda、Takumi Yuasa、Namika Anahara、Yutaka Nishiyama
DOI:10.1016/j.jorganchem.2011.02.014
日期:2011.5
The first example of the FBW rearrangement using of lanthanum metal and a catalytic amount of iodine was disclosed. When gem-diiodo- and gem-dibromoalkenes were treated with lanthanum metal in the presence of a catalytic amount of iodine, the reductive dehalogenation of these compounds smoothly proceeded to produce the corresponding alkynes in moderate to good yields.
公开了使用镧金属和催化量的碘进行的FBW重排的第一个例子。当在催化量的碘存在下用镧金属处理宝石-二碘代-和宝石-二溴代烯烃时,这些化合物的还原性脱卤作用平稳地进行,以中等至良好的产率生产相应的炔烃。