Phosphatase models: Synthesis, structure and catalytic activity of zinc complexes derived from a phenolic Mannich-base ligand

Polyhedron ◽  
2015 ◽  
Vol 97 ◽  
pp. 55-65 ◽  
Author(s):  
Ria Sanyal ◽  
Prateeti Chakraborty ◽  
Ennio Zangrando ◽  
Debasis Das
Keyword(s):  
Catalytic Activity ◽  
Mannich Base ◽  
Zinc Complexes

scholarly journals Ring-Opening Copolymerization of Cyclohexene Oxide and Cyclic Anhydrides Catalyzed by Bimetallic Scorpionate Zinc Catalysts

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1651
Author(s):  
Felipe de la Cruz-Martínez ◽  
Marc Martínez de Sarasa Buchaca ◽  
Almudena del Campo-Balguerías ◽  
Juan Fernández-Baeza ◽  
Luis F. Sánchez-Barba ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Reaction Mechanism ◽  
Catalytic System ◽  
Phthalic Anhydride ◽  
Ring Opening ◽  
High Selectivity ◽  
Zinc Complexes ◽  
Cyclohexene Oxide ◽  
Reaction Conditions ◽  
Cyclic Anhydrides

The catalytic activity and high selectivity reported by bimetallic heteroscorpionate acetate zinc complexes in ring-opening copolymerization (ROCOP) reactions involving CO2 as substrate encouraged us to expand their use as catalysts for ROCOP of cyclohexene oxide (CHO) and cyclic anhydrides. Among the catalysts tested for the ROCOP of CHO and phthalic anhydride at different reaction conditions, the most active catalytic system was the combination of complex 3 with bis(triphenylphosphine)iminium as cocatalyst in toluene at 80 °C. Once the optimal catalytic system was determined, the scope in terms of other cyclic anhydrides was broadened. The catalytic system was capable of copolymerizing selectively and efficiently CHO with phthalic, maleic, succinic and naphthalic anhydrides to afford the corresponding polyester materials. The polyesters obtained were characterized by spectroscopic, spectrometric, and calorimetric techniques. Finally, the reaction mechanism of the catalytic system was proposed based on stoichiometric reactions.

scholarly journals Zinc Complexes with Guanidine-Pyridine Hybrid Ligands: Anion Effect and Catalytic Activity

2015 ◽  
Vol 641 (12-13) ◽  
pp. 2147-2156 ◽  
Author(s):  
Artjom Döring ◽  
Ulrich Flörke ◽  
Alexander Hoffmann ◽  
Matthew D. Jones ◽  
Dirk Kuckling ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Zinc Complexes ◽  
Anion Effect ◽  
Hybrid Ligands

scholarly journals Synthesis, Structures, and Catalytic Activity of Homo- and Heteroleptic Ketoiminate Zinc Complexes in Lactide Polymerization

2018 ◽  
Vol 2018 (36) ◽  
pp. 4014-4021 ◽  
Author(s):  
Phillip Steiniger ◽  
Pascal M. Schäfer ◽  
Christoph Wölper ◽  
Johanna Henkel ◽  
Agnieszka N. Ksiazkiewicz ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Zinc Complexes ◽  
Lactide Polymerization

Strategies for Tuning the Catalytic Activity of Zinc Complexes in the Solvent-Free Coupling Reaction of CO2 and Cyclohexene Oxide

2021 ◽  
pp. 120753
Author(s):  
Paolo Biagini ◽  
Carlo Perego ◽  
Riccardo Pò ◽  
Laura Boggioni ◽  
Mariachiara Cozzolino ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Coupling Reaction ◽  
Zinc Complexes ◽  
Solvent Free ◽  
Cyclohexene Oxide

Zinc Complexes with Guanidine-Pyridine Hybrid Ligands - Guanidine Effect and Catalytic Activity

2011 ◽  
Vol 2011 (28) ◽  
pp. 4441-4456 ◽  
Author(s):  
Janna Börner ◽  
Ines dos Santos Vieira ◽  
Matthew D. Jones ◽  
Artjom Döring ◽  
Dirk Kuckling ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Zinc Complexes ◽  
Hybrid Ligands

Synthesis, structure, and catalytic activity of trinuclear zinc complexes with new chiral biaryl-based NO2 ligands

2012 ◽  
Vol 712 ◽  
pp. 29-36 ◽  
Author(s):  
Ning Zhao ◽  
Liang Chen ◽  
Wenshan Ren ◽  
Haibin Song ◽  
Guofu Zi
Keyword(s):  
Catalytic Activity ◽  
Zinc Complexes

scholarly journals Synthesis, Structure, and Catalytic Activity of Tridentate, Base-Functionalized β-Ketiminate Zinc Complexes in Ring-Opening Polymerization of Lactide

2014 ◽  
Vol 2014 (13) ◽  
pp. 2230-2240 ◽  
Author(s):  
Christoph Scheiper ◽  
Dennis Dittrich ◽  
Christoph Wölper ◽  
Dieter Bläser ◽  
Joachim Roll ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Zinc Complexes
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