Polyhedron

Zinc complexes bearing N, N′-bidentate entiopure ligands: Synthesis, structure and catalytic activity toward ring opening polymerisation of rac-lactide

S Nayab, H Lee, JH Jeong

Index: Nayab, Saira; Lee, Hyosun; Jeong, Jong Hwa Polyhedron, 2012 , vol. 43, # 1 p. 55 - 62

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Citation Number: 9

Abstract

Dichloro zinc complexes with (S)-1-phenyl-N-[(S)-1-(pyridin-2-yl) ethyl] ethanamine (PMMA) and (S)-1-(6-methylpyridin-2-yl)-N-[(S)-1-phenylethyl] ethanamine (MPMMA) were prepared and characterised by X-ray diffraction. The catalytic activity of the dimethyl complexes, generated in situ, was high in the ring opening polymerization of rac-lactide. Specifically, the dimethyl derivative of (PMMA) ZnCl2 yielded a highly stereocontrolled polylactide with Pr= ...