作者:Kuo-Fu Peng、Chi-Tien Chen
DOI:10.1039/b905394h
日期:——
A series of aluminium complexes containing anilido-pyrazolate ligands is described. Reactions of four anilido-pyrazolate ligand precursors, HNPhPz, HNPhTriMePz, HNPhOMePz, or HNPhSMePz [HNPhPz = ortho-C6H4(NH-phenyl)(1-pyrazole); HNPhTriMePz = ortho-C6H4(NH-2,4,6-trimethylphenyl)(1-pyrazole); HNPhOMePz = ortho-C6H4(NH-2-methoxyphenyl)(1-pyrazole); HNPhSMePz = ortho-C6H4(NH-2-methylthiophenyl)(1-pyrazole)], with one molar equivalent of AlMe3 in toluene give the aluminium dimethyl complexes, (NArPz)AlMe2 [Ar = phenyl, (NPhPz)AlMe2 (1); Ar = 2,4,6-trimethylphenyl, (NPhTriMePz)AlMe2 (2); Ar = 2-methoxyphenyl, (NPhOMePz)AlMe2 (3); Ar = 2-methylthiophenyl, (NPhSMePz)AlMe2 (4)], respectively. The molecular structures are reported for compounds 1 and 3. Their catalytic activities toward the ring opening polymerisation reaction of ε-caprolactone in the presence of BnOH are also under investigation.
本文描述了一系列含有苯胺基吡唑烷配体的铝络合物。四种苯胺基吡唑烷配体前体 HNPhPz、HNPhTriMePz、HNPhOMePz 或 HNPhSMePz [HNPhPz = ortho-C6H4(NH-phenyl)(1-pyrazole)] 的反应;HNPhTriMePz = 正交-C6H4(NH-2,4,6-三甲基苯基)(1-吡唑); HNPhOMePz = 正交-C6H4(NH-2-甲氧基苯基)(1-吡唑);HNPhSMePz = ortho-C6H4(NH-2-methylthiophenyl)(1-pyrazole)] 与一摩尔当量的 AlMe3 在甲苯中反应生成二甲基铝络合物 (NArPz)AlMe2 [Ar = phenyl, (NPhPz)AlMe2 (1);Ar = 2,4,6-三甲基苯基,(NPhTriMePz)AlMe2 (2);Ar = 2-甲氧基苯基,(NPhOMePz)AlMe2 (3);Ar = 2-甲硫基苯基,(NPhSMePz)AlMe2 (4)]。报告了化合物 1 和 3 的分子结构。它们在 BnOH 存在下对ε-己内酯开环聚合反应的催化活性也在研究之中。