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Three new metal alkoxides, [(MMPEP)Al(μ-OCH 2 C 6 H 4 CH 2 Cl)] 2 (1), [(MMPEP–H)Li·(BnOH)] 2 (2) and [(MMPEP–H)Li·(HOCH 2 C 6 H 4 CH 2 Cl)] 2 (3) (MMPEP–H 2 : 2,2′-methylene-bis{4,6-di(1-methyl-1-phenylethyl)phenol}) have been synthesized and characterized. Complex 1 was prepared by the reaction of [(MMPEP)Al(CH...
This review describes recent development of ring-opening polymerization of lactides and related cyclic esters using main group metal complexes as catalysts/initiators. The complexes described here are classified according to metal groups. Most attention is devoted to the well-defined metal complexes.
Two novel magnesium aryloxides have been prepared and their catalytic activities toward ring-opening polymerization (ROP) of ε-caprolactone and l-lactide have been investigated. The reaction of 2,2′-(2-methoxybenzylidene)-bis(4,6-di(1-methyl-1-phenylethyl)phenol) (MEMPEP-H 2 ) (1) and 2,2′-methylene-bis(4,6-di(1-methyl-1-phenylethyl)phenol) (MMPEP-H 2 ) with n Bu 2 ...
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