作者:R.C. Larock、J.C. Bernhardt、R.J. Driggs
DOI:10.1016/s0022-328x(00)84862-7
日期:1978.8
Vinylmercurials react readily with allylic halides, lithium chloride and palladium chloride in tetrahydrofuran to give 1,4-dienes. Some reactions proceed well using only catalytic amounts of palladium chloride while others require stoichiometric amounts. The yields decrease with increasing substitution about the carboncarbon double bond of the allylic halide. The reactions appear to proceed through
乙烯基汞在四氢呋喃中容易与烯丙基卤化物,氯化锂和氯化钯反应生成1,4-二烯。一些反应仅使用催化量的氯化钯即可顺利进行,而其他反应则需要化学计量的量。随着烯丙基卤化物的碳碳双键的取代增加,产率降低。反应似乎是通过将乙烯基钯物质加到烯丙基卤化物的碳-碳双键上,然后消除氯化钯而进行的。总的结果是小号Ñ的烯丙基卤化物的2'取代。