New group 10 complexes of the bulky iminophosphine ligands [Ph<sub>2</sub>PCH<sub>2</sub>C(Ph)N(2,6-R<sub>2</sub>C<sub>6</sub>H<sub>3</sub>)], where R = Me,<sup>i</sup>Pr
作者:Sofia I. Pascu、Karl S. Coleman、A. R. Cowley、Malcolm L. H. Green、Nicholas H. Rees
DOI:10.1039/b412391c
日期:——
New neutral and cationic complexes [NiBr2(L1)] (1), [NiBr2(OPHPh2)(L1)] (2), [NiMe2(L1)] (3), [NiBr(PMe3)(L1)](Br) (4), [Ni(CH3CN)(PMe3)(L1)](BF4)2 (5), [PdBr2(L2)] (6), [PdI2(L1)] (7), [PtMeCl(L1)] (8), [PtMe2(L1)] (9), [Pt(CH3CN)2(L1)](BF4)2 (10), [Pt(L1)2](X)2 [X = Cl (11a), Br (11b)], [PtX(L1)2](X) [X = Cl (12a), Br (12b)], where L1: [Ph2PCH2C(Ph)N(2,6-Me2C6H3)2] and L2: [Ph2PCH2C(Ph)N(2,6-iPr2C6H3)2], have been prepared and characterised. The molecular structures of 1, 2, 6, 7 and 9 have been determined. The complexes [PdBr2(L2)] (6), [PdBr2(L1)] and [PdMeCl(L1)] have been found to catalyse the Heck coupling of 4-bromoacetophenone with n-butyl acrylate under aerobic conditions.
新的中性和阳离子配合物 [NiBr2(L1)] (1)、[NiBr2(OPHPh2)(L1)] (2)、[NiMe2(L1)] (3)、[NiBr(PMe3)(L1)](Br) (4)、[Ni(CH3CN)(PMe3)(L1)](BF4)2 (5)、[PdBr2(L2)] (6)、[PdI2(L1)] (7)、[PtMeCl(L1)] (8)、[PtMe2(L1)] (9)、[Pt(CH3CN)2(L1)](BF4)2 (10)、[Pt(L1)2](X)2 [X = Cl (11a)、Br (11b)]、[PtX(L1)2](X) [X = Cl (12a)、Br (12b)],其中 L1:[和 L2:[Ph2PCH2C(Ph)N(2,6-iPr2C6H3)2]。1、2、6、7 和 9 的分子结构已经确定。研究发现,[PdBr2(L2)] (6)、[PdBr2(L1)] 和 [PdMeCl(L1)] 复合物能在有氧条件下催化 4-溴苯乙酮与丙烯酸正丁酯的赫克偶联反应。