New imino-pyridyl nickel(II) complexes: Synthesis, molecular structures and application as Heck coupling catalysts

被引：17

作者：

Motswainyana, William M. ^{[1
]}

Onani, Martin O. ^{[1
]}

Ojwach, Stephen O. ^{[2
]}

Omondi, Bernard ^{[3
]}

机构：

[1] Univ Western Cape, Dept Chem, ZA-7535 Bellville, South Africa

[2] Univ KwaZulu Natal, Sch Chem & Phys, ZA-3209 Scottsville, South Africa

[3] Univ KwaZulu Natal, Sch Chem & Phys, ZA-4000 Durban, South Africa

来源：

INORGANICA CHIMICA ACTA | 2012年 / 391卷

基金：

新加坡国家研究基金会;

关键词：

Imino-pyridyl; Nickel complexes; Crystal structure; Heck coupling reactions; C BOND FORMATION; PALLADIUM COMPLEXES; BETA-DIIMINE; ARYL; SALICYLALDEHYDE; MECHANISM; COLLOIDS; OLEFIN; BENZYL; SUZUKI;

D O I：

10.1016/j.ica.2012.04.037

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reactions of imino-pyridyl ligands, (2-pyridyl-2-thiophenemethyl) imine (L1) and (2-pyridyl-2-thiopheneethyl) imine (L2) with NiBr2(DME) gave the corresponding complexes [Ni(L1)Br-2] (1) and [Ni(L2)Br-2] (2) in good yields. Treatment of 1 and 2 with one equivalent of 2-hydroxythiophenol resulted in the displacement of the bromide ligands to form the nickel(II) thiolato complexes 3 and 4. Molecular structure of 3 confirmed that L1 and L2 bind to the nickel atom in a bidentate fashion. Complexes 1-4 catalyzed the Heck coupling reaction of iodobenzene and bromobenzene with methyl acrylate. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：93 / 97

页数：5

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