Synthesis, X-ray, and NMR Studies on Palladium BINAP Complexes Containing Oxazolidinone and Acetylacetonate Anions
作者:Devendrababu Nama、Paul S. Pregosin、Alberto Albinati、Silvia Rizzato
DOI:10.1021/om0700157
日期:2007.4.1
A series of monocationic palladium BINAP complexes, [Pd(rac-BINAP)(an oxazolidinone anion)][X] and [Pd(rac-BINAP)(an acetylacetonate anion)][X] (X = a, CF3SO3-; b, BF4-) (9−13), have been synthesized and characterized. A dicationic intermediate, pertinent to the Pd-catalyzed hydroamination reaction, arising from the reaction of the bis-aquo complex [Pd(H2O)2(rac-BINAP)]2(CF3SO3)2 and 1 equiv of an
一系列单阳离子钯BINAP配合物,[Pd(rac -BINAP)(恶唑烷酮阴离子)] [X]和[Pd(rac -BINAP)(乙酰丙酮根阴离子)] [X](X = a,CF 3 SO 3 - ; b,BF 4 - )(9 - 13),已经合成和表征。与双水合物[Pd(H 2 O)2(rac -BINAP)] 2(CF 3 SO 3)2的反应有关的与Pd催化的加氢胺化反应有关的专用中间体已通过低温NMR研究确定了1个当量的恶唑烷酮。配合物[Pd(rac -BINAP)(CH 3 -C(O)-C(CH 3)-C(O)-CH 3)](BF 4),12b和[Pd(μ-OH) )(rac -BINAP)] 2(CF 3 SO 3)2已通过X射线衍射测定。的固态结构2种的BF分离的形式4 -盐12B获得了。盐的一种形式中可以被认为是作为一个紧离子对,而第二形式含有二氯甲烷溶剂分子,具有相对远程BF包装在大约第五协调位置一起4