Palladium(II) Chloride Complexes of N,N′-Disubstituted Imidazole-2-thiones: Syntheses, Structures, and Catalytic Performances in Suzuki–Miyaura and Sonogashira Coupling Reactions
作者:Li-Ming Zhang、Hai-Yan Li、Hong-Xi Li、David James Young、Yong Wang、Jian-Ping Lang
DOI:10.1021/acs.inorgchem.7b01616
日期:2017.9.18
Reactions of PdCl2 with 2 equiv of N,N′-disubstituted-imidazole-2-thiones R1R2C3N2S (R1 = R2 = Me (1a), iPr (1b), Cy (1c), C6Me3H2 (1d); R1 = Me, R2 = Ph (1e)) under the different conditions afford five mononuclear complexes trans-[(R1R2C3N2S)2PdCl2] (R1 = R2 = Me (2a), iPr (2b), Cy (2c), C6Me3H2 (2d); R1 = Me, R2 = Ph (2e)) and five binuclear Pd(II) complexes [(PdCl2)μ-(R1R2C3N2S)}]2 (R1 = R2 = Me
PdCl 2与2当量的N,N'-二取代-咪唑-2-硫酮R 1 R 2 C 3 N 2 S(R 1 = R 2 = Me(1a),i Pr(1b),Cy(1c),C 6 Me 3 H 2(1d); R 1 = Me,R 2 = Ph(1e))在不同条件下可得到5个单核配合物反式-[(R 1 R 2 C 3 N 2 S)2 PdCl 2 ](R 1 = R 2 = Me(2a),i Pr(2b),Cy(2c),C 6 Me 3 H 2(2d); R 1 = Me,R 2 = Ph(2e))和五个双核Pd(II)络合物[(PdCl 2)μ-(R 1 R 2 C 3 N 2 S)}] 2(R 1 = R 2 = Me(3a),i Pr(3b),Cy(3c),C 6 Me 3 H 2(3d); R 1 = Me,R 2 = Ph(3e))。通过在回流的MeOH中添加等摩尔的PdCl 2,可以轻松将络合物2a