Activation of carbonyl bonds by quaternary ammoniums and a (Na+:crown-ether) complex: investigation of the ring-opening polymerization of cyclic esters

2013 ◽  
Vol 4 (12) ◽  
pp. 3491 ◽  
Author(s):  
Coralie Thomas ◽  
Anne Milet ◽  
Frédéric Peruch ◽  
Brigitte Bibal
Keyword(s):  
Crown Ether ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Complex Investigation ◽  
Cyclic Esters ◽  
Crown Ether Complex ◽  
Ether Complex

A switchable dimeric yttrium complex and its three catalytic states in ring opening polymerization

2021 ◽  
Author(s):  
Shijie Deng ◽  
Paula L. Diaconescu
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Oxidation States ◽  
Cyclic Esters

A dimeric yttrium phenoxide complex can be oxidized in a stepwise fashion to access three oxidation states. The three states show different activity in the ring opening polymerization of cyclic esters and epoxides.

ChemInform Abstract: Crown Ether Complex Cation Ionic Liquids: Preparation and Applications in Organic Reactions.

ChemInform ◽  
2011 ◽  
Vol 42 (50) ◽  
pp. no-no
Author(s):  
Yingying Song ◽  
Huanwang Jing ◽  
Bo Li ◽  
Dongsheng Bai
Keyword(s):  
Ionic Liquids ◽  
Crown Ether ◽  
Complex Cation ◽  
Organic Reactions ◽  
Crown Ether Complex ◽  
Ether Complex

Controlling polymer stereochemistry in ring-opening polymerization: a decade of advances shaping the future of biodegradable polyesters

2021 ◽  
Author(s):  
Mathieu J.-L. Tschan ◽  
Régis M. Gauvin ◽  
Christophe M. Thomas
Keyword(s):  
Biodegradable Polymer ◽  
Ring Opening ◽  
Polymer Synthesis ◽  
Ring Opening Polymerization ◽  
Cyclic Esters ◽  
Biodegradable Polyesters ◽  
The Future ◽  
Recent Developments

In this review, we describe recent developments in biodegradable polymer synthesis with a focus on the use of discrete complexes and organocatalysts as active initiators for the stereocontrolled ring-opening polymerization of cyclic esters.

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