Cobalt chloride: An inexpensive catalyst for the substitution of CO by isonitriles on M(CO)6 (M = Cr, Mo, W)
作者:Michel O. Albers、Neil J. Coville、Terence V. Ashworth、Eric Singleton、Hester E. Swanepoel
DOI:10.1016/s0022-328x(00)84522-2
日期:1980.10
CoCl2 · 2 H2O has been found to catalyse the substitution of CO on Group VI metal carbonyls by isonitriles to yield M(CO)6−n(RNC)n [M = Cr, Mo, W, n = 1—3, RNC = t-BuNC; M = Cr, Mo, W, n = 1, RNC = MeNC, XNC (2,6-dimethylphenylisocyanide); M = Mo, n = 2, R = MeNC, XNC; fac-Mo(CO)3(MeNC)3 and cis-Mo(CO)2(t-BuNC)4]. The reactions occur by stepwise replacement of the CO groups and mixed isonitrile derivatives
已发现CoCl 2 ·2 H 2 O可以催化异腈取代VI族金属羰基上的CO生成M(CO)6− n(RNC)n [M = Cr,Mo,W,n = 1-3 ,RNC = t-BuNC;M = Cr,Mo,W,n= 1,RNC = MeNC,XNC(2,6-二甲基苯基异氰化物);N= 1。M = Mo,n = 2,R = MeNC,XNC;FAC -Mo(CO)3(MENC)3和CIS -Mo(CO)2(叔BuNC)4 ]。通过逐步取代CO基团进行反应,可以轻松制备混合的异腈衍生物,例如Mo(CO)4(MeNC)(t-BuNC)。所有报道的反应都很容易,产品收率通常为80–95%。