Reaction of Pd(OAc)2 with Bu3P (1:1) in benzene or THF afforded extraordinarily active zerovalent palladium species as a pale yellow solution, the nature of which has been discussed on the basis of the significant difference in catalytic reactivity and 31P1H}-NMR features between such a catalyst and one prepared from Pd2(dba)3 and excess Bu3P.
Pd(OAc)2与Bu 3 P(1:1)在苯或THF中的反应提供了非常活泼的零价钯物质,为浅黄色溶液,其性质已基于催化反应性和这种催化剂与由Pd 2(dba)3和过量的Bu 3 P制备的催化剂之间具有31 P 1 H} -NMR特征。