Synthesis, structure and catalytic application of palladium(II) complexes bearing N-heterocyclic carbenes and phosphines
作者:Wolfgang A Herrmann、Volker P.W Böhm、Christian W.K Gstöttmayr、Manja Grosche、Claus-Peter Reisinger、Thomas Weskamp
DOI:10.1016/s0022-328x(00)00722-1
日期:2001.1
mixed palladium(II) complexes bearing N-heterocyclic carbenes (NHCs) and triaryl- and trialkylphosphines [NHC(R2)]Pd(PR′3)I2 (R=Me, t-Bu, (R)-1-phenylethyl; R′=Ph, o-tolyl, cyclohexyl, t-Bu) have been prepared. Crystal structure details of trans-diiodo(1,3-di-tert-butylimidazolin-2-ylidene)(triphenylphosphino)palladium(II) are presented. The complexes were tested as catalysts in the Mizoroki–Heck, Suzuki–Miyaura
多种混合钯(II)络合物轴承ñ -杂环卡宾(NHC的)和三芳基三烷基膦和[NHC(R 2)]将Pd(PR' 3)我2(R = Me中,吨-Bu,(- [R )-已经制备了1-苯乙基; R'= Ph,邻甲苯基,环己基,t- Bu)。的晶体结构的细节的反式-二碘代(1,3-二-叔提出了丁基丁基咪唑啉-2-亚烷基)(三苯基膦基)钯(II)。在Mizoroki-Heck,Suzuki-Miyaura和Stille反应以及苯乙炔的二聚反应中,已将这些络合物作为催化剂进行了测试。在Suzuki-Miyaura交叉偶联反应的催化研究中,将这些新型配合物的性能与相应的bis(NHC)和bis(膦)配合物获得的结果进行了比较。