作者:David E. Herbert、Oleg V. Ozerov
DOI:10.1021/om2008056
日期:2011.12.26
diarylamine [(H)N(2-C(O)H-4-Me-C6H3)(2-P(iPr)2-4-Me-C6H3)] (3) with primary α,ω-diamines (1,2-diaminoethane, n = 2; 1,4-diaminobutane, n = 4), which simultaneously constructed the imino arms and bridged the pincer cores. Ligands 1 and 4 were then used in the synthesis of neutral, square-planar palladium(II) complexes 5 and 6, [(PCN-Cn)Pd2X2, (PNN-Cn)Pd2X2; n = 2, 4; X = Cl, OAc, OTf]. The difference
一系列双核配体,每个配体包含两个三齿钳制位点,它们基于一个中心的单阴离子芳基(C)供体,两侧是中性膦基(P)和亚氨基(N)供体,[(PCN)-(CH 2)n-(PCN) ](1)或中央为单阴离子的氨基(N),两侧为中性膦(P)和亚氨基供体(N)[[(PNN)-(CH 2)n-(PNN)](4)。所述金属化而得位点通过两个当量的缩合联米羟基苯甲醛或有目的地建立非对称二芳基胺[(H)N(2-C(O)H-4-ME-C 6 H ^ 3)(2-P(我Pr)2 -4-Me-C 6 H3)](3)与伯α,ω-二胺(1,2-二氨基乙烷,n = 2; 1,4-二氨基丁烷,n = 4),它们同时构成了亚氨基臂并桥接了钳形核。然后将配体1和4用于合成中性的方形方形钯(II)配合物5和6 [[(PCN-C n)Pd 2 X 2,(PNN-C n)Pd 2 X 2 ; n = 2,4; X = Cl,OAc,OTf