Novel Chromium(III) Complexes Containing Imidazole-Based Chelate Ligands with Varying Donor Sets: Synthesis and Reactivity
作者:Thomas Rüther、Nathalie Braussaud、Kingsley J. Cavell
DOI:10.1021/om000846b
日期:2001.3.1
Reaction of (THF)3RCrCl2 (R = Cl, Me) with tri- and bidentate bis(N-methylimidazole-2-yl) ligands gave the new Cr(III) complexes [Cr(N∧N∧Y)Cl3] (3a−c), [Cr(N∧N)Cl3]2 (4a−c), and [Cr(Me)(N∧N∧Y)Cl2] (5a,b) in ≥90% yield. Toluene solutions of 3,4/MMAO convert ethylene into linear 1-alkenes with selectivities of up to 79%.
(THF)3 RCrCl 2(R = Cl,Me)与三和双齿双(N-甲基咪唑-2-基)配体反应,得到新的Cr(III)络合物[Cr(N∧N∧Y)Cl 3 ](3a - c), [Cr(N∧N)Cl 3 ] 2(4a - c)和[Cr(Me)(N∧N∧Y)Cl 2 ](5a,b)的产率≥90% 。的甲苯溶液3,4 / MMAO转换乙烯为线性的1-链烯与高达79%的选择性。