1′-bis(diphenylphosphino)ferrocene (dppf) is widely used as a ligand in coordination chemistry and catalysis, its congeners with oxygen-containing functional groups have long been overlooked. Accordingly, we studied the coordination behaviour in Pd(II) complexes of three phosphinoferrocene ligands bearing secondary O-donor groups, Ph2PfcR, wherein R = CHO (1), Ac (2) and CMe2(OH) (3), and fc = ferrocene-1
尽管1,1'-双(
二苯基膦基)
二茂铁(dppf)在配位
化学和催化中广泛用作
配体,但长期以来却忽略了其具有含氧官能团的同类物。因此,我们研究了带有次要O供体基团的两个膦基
二茂铁配体Ph 2 PfcR在Pd(II)配合物中的配位行为,其中R = CHO(1),Ac(2)和CMe 2(OH)(3),并且fc =
二茂铁-1,1′-二基。根据不同的
化学计量,反应的1-3与[的PdCl(L)2(COD)](COD =η 2:η 2-cycloocta -1,5-二烯)中产生的相应的单-和二
钯配合物,反式- [的PdCl 2(L-κ P)2 ]和反式- [的PdCl(μ-Cl)的(L-κ P)] 2。化合物[的PdCl(μ-Cl)的(3 -κ P)] 2被发现容易脱
水,产生[的PdCl(μ-Cl)的(PH 2 PFCC(Me)的CH 2 -κ P)] 2。此外,
配体1-3裂解[(L NC)的Pd(μ-Cl)的]