Preparation and characterization of bisphenolato magnesium derivatives: an efficient catalyst for the ring-opening polymerization of ε-caprolactone and L-lactide
作者:Min-Yi Shen、Ya-Liu Peng、Wen-Chou Hung、Chu-Chieh Lin
DOI:10.1039/b912443h
日期:——
A series of magnesium complexes have been prepared and characterized, in which [(EDBP-Me)Mg(μ-OBn)]2 (4) has shown high activity toward the ring-opening polymerization (ROP) of ε-caprolactone and L-lactide. 2,2′-Ethylidene-bis(4,6-di-tert-butylphenol)-monomethyl ether ([EDBP-(Me)H]) is prepared by the reaction of 2,2′-ethylidene-bis(4,6-di-tert-butylphenol) (EDBP-H2) with dimethyl sulfate. The reaction
一系列 镁 复合物已经制备并表征,其中 [(EDBP-Me)Mg(μ-OBn)] 2(4)对开环聚合 (ROP)的 ε-己内酯 和 丙交酯。 2,2'-亚乙基-双(4,6-二叔丁基苯酚)-单甲醚 ([EDBP-(Me)H])是由 2,2'-亚乙基-双(4,6-二叔丁基苯酚)(EDBP-H 2)与硫酸二甲酯。的反应[EDBP-(Me)H] 和 n Bu 2镁 产量 [(EDBP-Me)Mg n Bu] 2,进一步与 苯甲醇 和 N,N-二甲基乙二胺 给复合体 [(EDBP-Me)Mg(μ-OBn)] 2(4)和的Mg(μ-ME [EDBP(ME)] 2 NCH 2 CH 2 NH)} 2(5)表示。实验结果表明,配合物4对环酯的活性高于环糊精的活性。[(μ-EDBP)Mg] 2/(硼酸)。