New facets of an old ligand: titanium and zirconium complexes of phenylenediamine bis(phenolate) in lactide polymerisation catalysis

被引：123

作者：

Zelikoff, Ayellet L. ^{[1
]}

Kopilov, Jacob ^{[1
]}

Goldberg, Israel ^{[1
]}

Coates, Geoffrey W. ^{[2
]}

Kol, Moshe ^{[1
]}

机构：

[1] Tel Aviv Univ, Sch Chem, Raymond & Beverly Sackler Fac Exact Sci, IL-69978 Tel Aviv, Israel

[2] Cornell Univ, Dept Chem & Chem Biol, Baker Lab, Ithaca, NY 14853 USA

来源：

CHEMICAL COMMUNICATIONS | 2009年 / 44期

关键词：

RING-OPENING POLYMERIZATION; GROUP-3; METAL-COMPLEXES; RAC-LACTIDE; RACEMIC LACTIDE; COORDINATION CHEMISTRY; STEREOSELECTIVE POLYMERIZATION; OLEFIN POLYMERIZATION; ALKOXIDE INITIATORS; POLY(LACTIC ACID); SINGLE-SITE;

D O I：

10.1039/b915211c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Phenylenediamine bis(phenolate) binds in the reduced dianionic form to titanium and zirconium alkoxides giving either mononuclear or bridging dinuclear complexes depending on the metal precursors; the fluxional mononuclear titanium complex is found to exhibit extremely high activity in polymerisation of rac-lactide in the melt.

引用

页码：6804 / 6806

页数：3

共 40 条

[1] Recent developments in ring opening polymerization of lactones for biomedical applications [J].

Albertsson, AC ;

Varma, IK .

BIOMACROMOLECULES, 2003, 4 (06) :1466-1486

[2] Ring-opening polymerization of lactide with group 3 metal complexes supported by dianionic alkoxy-amino-bisphenolate ligands: Combining high activity, productivity, and selectivity [J].

Amgoune, A ;

Thomas, CM ;

Roisnel, T ;

Carpentier, JF .

CHEMISTRY-A EUROPEAN JOURNAL, 2006, 12 (01) :169-179

[3] An overview of polylactides as packaging materials [J].

Auras, R ;

Harte, B ;

Selke, S .

MACROMOLECULAR BIOSCIENCE, 2004, 4 (09) :835-864

[4] Catalytic reactivity of a zirconium(IV) redox-active ligand complex with 1,2-diphenylhydrazine [J].

Blackmore, Karen J. ;

Lal, Neetu ;

Ziller, Joseph W. ;

Heyduk, Alan F. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (09) :2728-+

[5] Group IV Coordination Chemistry of a Tetradentate Redox-Active Ligand in Two Oxidation States [J].

Blackmore, Karen J. ;

Lal, Neetu ;

Ziller, Joseph W. ;

Heyduk, Alan F. .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2009, (06) :735-743

[6] Stereoselective ring-opening polymerization of racemic lactide using alkoxy-amino-bis(phenolate) group 3 metal complexes [J].

Cai, CX ;

Amgoune, A ;

Lehmann, CW ;

Carpentier, JF .

CHEMICAL COMMUNICATIONS, 2004, (03) :330-331

[7] Polymerization of lactide with zinc and magnesium β-diiminate complexes:: Stereocontrol and mechanism [J].

Chamberlain, BM ;

Cheng, M ;

Moore, DR ;

Ovitt, TM ;

Lobkovsky, EB ;

Coates, GW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (14) :3229-3238

[8] Aerobic oxidation of primary alcohols (including methanol) by copper(II)- and zinc(II)-phenoxyl radical catalysts [J].

Chaudhuri, P ;

Hess, M ;

Müller, J ;

Hildenbrand, K ;

Bill, E ;

Weyhermüller, T ;

Wieghardt, K .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (41) :9599-9610

[9] Single-site catalysts for ring-opening polymerization:: Synthesis of heterotactic poly(lactic acid) from rac-lactide [J].

Cheng, M ;

Attygalle, AB ;

Lobkovsky, EB ;

Coates, GW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (49) :11583-11584

[10] Lactide polymerization by well-defined calcium coordination complexes: comparisons with related magnesium and zinc chemistry [J].

Chisholm, MH ;

Gallucci, J ;

Phomphrai, K .

CHEMICAL COMMUNICATIONS, 2003, (01) :48-49

← 1 2 3 4 →