摘要
研究了二茂钴阳离子双膦配体Dppc+PF6-催化的纯水中Heck反应的活性。结果表明Dppc+PF6-与Pd(dba)2形成的催化剂,以三乙胺为碱,在120℃反应2个或4个小时能够有效地催化不同碘代芳烃与不同烯烃的Heck偶联反应。该催化体系操作和后处理简单,通过乙醚萃取就可以很容易实现催化剂与底物的分离。
The Heck reaction catalyzed by the the ionic phosphine Dppc^＋PF6^- in water was investigated.It showed the Heck reaction of various aryl iodides with olefins performed effectively by the catalyst derived from Dppc^＋PF6^- and Pd（dba）2 using triethylamine as the base at 120℃ for 2h or 4h.The operation and workup was simple,and the products can be easily separated from the catalytic system by diethyl ether.
出处
《广州化工》
CAS
2010年第12期137-139,共3页
GuangZhou Chemical Industry
