Palladium(II) Complexes of Chiral 1,2-Diiminophosphoranes: Synthesis, Structural Characterization, and Catalytic Activity for the Allylic Alkylation
作者:Mathieu Sauthier、Jorge Forniés-Cámer、Loïc Toupet、Régis Réau
DOI:10.1021/om990786d
日期:2000.2.1
and 9b reacted with [Pd(η3-C3H5)Cl]2 in the presence of a silver salt in CH2Cl2 at room temperature to afford the cationic complexes 10 (81% yield), 11 (84% yields), 15 (78% yield), and 16 (74% yield), respectively. According to the same general procedure, palladium complexes [(η3-PhCHCHCHPh)(2)Pd]TfO (13, 88% yield) and [(η3-PhCHCHCHPh)(3)Pd]TfO (14, 86% yield) have been prepared. Single-crystal X-ray
手性1,2-双[三(二甲基氨基)膦氨基氨基]环己烷(7a,产率80%),1,2-双[三(二甲基氨基)膦氨基氨基] -1,2-二苯乙烷(7b,产率74%),1,使用(1 R,2 R)-1制备了2-双[三苯氧基膦氨基]环己烷(9a,产率85%)和1,2-双[三苯氧基膦氨基] -1,1,2-二苯乙烷(9b,70%产率),2-二氨基环己烷或(1 R,2 R)-1,2-二苯基乙二胺和相应的膦二溴化物衍生物(Kirsanov途径)。1,2-双[三苯基膦基氨基]环己烷(2),1,2-双[三苯基膦基氨基] -1,2-二苯乙烷(3),和1,2- diiminophosphoranes 7B和9B与[将Pd(η 3 -C 3 H ^ 5)CL] 2在CH银盐的存在2氯2在室温下,得到阳离子络合物10(81产率分别为11%(84%),15%(78%)和16%(74%)。根据相同的通用程序,钯配合物[(η 3 -PhCHCHCHPh)(2)的Pd]