scholarly journals Ring-opening copolymerization of cyclohexene oxide and maleic anhydride catalyzed by mononuclear [Zn(L)(H2O)] or binuclear [Zn2(L)(OAc)2(H2O)] complex based on the Salen-type Schiff-base ligand

2014 ◽  
Vol 32 (6) ◽  
pp. 768-777 ◽  
Author(s):  
Li-ying Wu ◽  
Dai-di Fan ◽  
Xing-qiang Lü ◽  
Rong Lu
Keyword(s):  
Schiff Base ◽  
Maleic Anhydride ◽  
Schiff Base Ligand ◽  
Ring Opening ◽  
Cyclohexene Oxide

scholarly journals Heterodinuclear catalysts Zn(ii)/M and Mg(ii)/M, where M = Na(i), Ca(ii) or Cd(ii), for phthalic anhydride/cyclohexene oxide ring opening copolymerisation

2021 ◽  
Author(s):  
Arron C. Deacy ◽  
Christopher B. Durr ◽  
Ryan W. F. Kerr ◽  
Charlotte K. Williams
Keyword(s):  
Schiff Base ◽  
Phthalic Anhydride ◽  
Schiff Base Ligand ◽  
Ring Opening ◽  
Cyclohexene Oxide ◽  
Oxide Ring ◽  
Selective Catalysis

A series of heterodinuclear catalysts, coordinated by a Schiff base ligand, for ring opening copolymerisation of phthalic anhydride/cyclohexene oxide, highlight the best metal combinations for fast and selective catalysis.

Bulk solvent-free melt ring-opening polymerization of L-lactide catalyzed by Cu(II) and Cu(II)-Nd(III) complexes of the Salen-type Schiff-base ligand

2011 ◽  
Vol 25 (4) ◽  
pp. 310-316 ◽  
Author(s):  
Lei-Lei Chen ◽  
Li-Qin Ding ◽  
Chu Zeng ◽  
Yong Long ◽  
Xing-Qiang Lü ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Solvent Free

scholarly journals Simple generation of neutral bimetallic aluminium and zinc alkyls Schiff bases bridged by a central resorcinol moiety

2010 ◽  
Vol 8 (6) ◽  
pp. 1305-1310 ◽  
Author(s):  
Elham Aazam ◽  
Martyn Coles
Keyword(s):  
Schiff Base ◽  
Schiff Bases ◽  
Schiff Base Ligand ◽  
Ring Opening ◽  
Rotation Axis ◽  
Zinc Complexes ◽  
Ethyl Benzene ◽  
Alkyl Complexes ◽  
Neutral Ligands ◽  
Coordinate Geometry

AbstractAluminium and zinc complexes bearing the N,O-chelating Schiff base ligand 4,6-bis-1-(2-(dimethylamino)ethylimino)ethyl)benzene-1,3-diol, (C6H2(OH)2(NCH2CH2NMe2)2) (1a), have been synthesized. Bimetallic aluminium and zinc alkyl complexes (2a–4a) were prepared by treatment of the hexadentate 1a with the appropriate amount of AlMe3, ZnMe2 and ZnEt2, respectively. 2a has been characterized crystallographically, it lies on a crystallographic two-fold rotation axis and each aluminium centre adopts a five coordinate geometry. Complex 2a was tested as a catalyst in the ring-opening polymerisation of ɛ-caprolactone. We describe here the synthesis of two neutral ligands (1a and (C6H2(OH)2(C6H5NH2) (C=O(CH3)) (1b)) and demonstrate their application in the synthesis of molecular aluminium and zinc derivatives.

Ring-opening copolymerization of CHO (cyclohexene oxide) and MA (maleic anhydride) catalyzed by the Co(III)–Salalen complex

2014 ◽  
Vol 48 ◽  
pp. 69-72 ◽  
Author(s):  
Xingmei Zhang ◽  
Yaoju Liu ◽  
Yan Chen ◽  
Zhao Zhang ◽  
Daidi Fan ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Ring Opening ◽  
Cyclohexene Oxide

scholarly journals High activity of an indium alkoxide complex toward ring opening polymerization of cyclic esters

2015 ◽  
Vol 51 (47) ◽  
pp. 9643-9646 ◽  
Author(s):  
Stephanie M. Quan ◽  
Paula L. Diaconescu
Keyword(s):  
Schiff Base ◽  
High Activity ◽  
Schiff Base Ligand ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Trimethylene Carbonate ◽  
Cyclic Esters ◽  
Indium Complex

An indium complex supported by a ferrocene-derived Schiff base ligand has unprecedented activity toward ε-caprolactone, δ-valerolactone, and β-butyrolactone ring-opening polymerizations. l-Lactide, d,l-lactide, and trimethylene carbonate polymerizations also showed moderate to high activity.

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