Ionic Ni (II) complexes containing a triphenylphosphine ligand and an imidazolium cation: synthesis, structures and catalysis for aryl Grignard cross-coupling of aryl …
YC Xu, J Zhang, HM Sun, Q Shen, Y Zhang
Index: Xu, Yan-Chao; Zhang, Jie; Sun, Hong-Mei; Shen, Qi; Zhang, Yong Dalton Transactions, 2013 , vol. 42, # 23 p. 8437 - 8445
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Citation Number: 12
Abstract
Novel ionic Ni (II) complexes of general formula [R2im][Ni (PPh3) Cl3](R2im= 1, 3-bis (2, 6- diisopropylphenyl) imidazolium cation, IPrim, 1a; R2im= 1, 3-diisopropylimidazolium cation, iPrim, 2a) were easily prepared in high yields by the direct reaction of Ni (PPh3) 2Cl2 with 1 equiv. of N, N′-dihydrocarbylimidazolium salt,[R2im] Cl. Their bromide analogs [R2im][Ni (PPh3) Br3](R2im= IPrim, 1b; R2im= iPrim, 2b) were synthesized by the same reaction in ...
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