Activity of a new class of ruthenium based ring-closing metathesis and ring-opening metathesis polymerization catalysts coordinated with a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and a Schiff base ligand

2002 ◽  
Vol 43 (50) ◽  
pp. 9101-9104 ◽  
Author(s):  
Bob De Clercq ◽  
Francis Verpoort
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Ring Opening ◽  
Polymerization Catalysts ◽  
Ring Opening Metathesis Polymerization ◽  
Ring Closing Metathesis ◽  
Metathesis Polymerization ◽  
New Class

Crosslinked dendronized polyols as a general approach to brighter and more stable fluorophores

2016 ◽  
Vol 52 (19) ◽  
pp. 3781-3784 ◽  
Author(s):  
Ying Li ◽  
Yugang Bai ◽  
Nan Zheng ◽  
Yang Liu ◽  
Gretchen A. Vincil ◽  
...  
Keyword(s):  
Ring Opening ◽  
Sequential Process ◽  
Chain Ring ◽  
Ring Opening Metathesis Polymerization ◽  
Ring Closing Metathesis ◽  
Metathesis Polymerization

Fluorescent, aqueous-soluble, crosslinked dendronized polyols (CDPs) are obtained through a sequential process involving ring-opening metathesis polymerization (ROMP), intra-chain ring-closing metathesis (RCM), and hydrolysis.

SBA-15 Immobilized Ruthenium Carbenes as Catalysts for Ring Closing Metathesis and Ring Opening Metathesis Polymerization

2009 ◽  
Vol 53 (3-4) ◽  
pp. 200-209 ◽  
Author(s):  
David Bek ◽  
Naděžda Žilková ◽  
Jiří Dědeček ◽  
Jan Sedláček ◽  
Hynek Balcar
Keyword(s):  
Ring Opening ◽  
Ring Opening Metathesis Polymerization ◽  
Ring Closing Metathesis ◽  
Metathesis Polymerization ◽  
Ruthenium Carbenes

Ring-opening metathesis polymerization of a strained stilbene-based macrocyclic monomer

2020 ◽  
Vol 4 (1) ◽  
pp. 252-256
Author(s):  
Brock E. Lynde ◽  
Ruth L. Maust ◽  
Penghao Li ◽  
Daniel C. Lee ◽  
Ramesh Jasti ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
New Class

We report the synthesis of a new class of strained macrocycle that performs well in ring-opening metathesis polymerization (ROMP).

Ruthenium Ring-Opening Metathesis Polymerization Catalysts Bearingo- Aryloxide-N-Heterocyclic Carbenes

2012 ◽  
Vol 214 (4) ◽  
pp. 492-498 ◽  
Author(s):  
Yong Kong ◽  
Yungang Tang ◽  
Zunzhi Wang ◽  
Shansheng Xu ◽  
Haibin Song ◽  
...  
Keyword(s):  
Ring Opening ◽  
Heterocyclic Carbenes ◽  
Polymerization Catalysts ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization

scholarly journals Synthesis of highly stable dual-site immobilized ruthenium olefin metathesis catalyst without ru leaching

2021 ◽  
Vol 2131 (4) ◽  
pp. 042055
Author(s):  
Huanhuan Zhao ◽  
Yanwu Zhang
Keyword(s):  
Block Copolymer ◽  
Olefin Metathesis ◽  
Ring Opening ◽  
Ring Opening Metathesis Polymerization ◽  
Ring Closing Metathesis ◽  
Metathesis Polymerization ◽  
Immobilized Catalyst ◽  
Excellent Activity ◽  
Metathesis Catalyst ◽  
Dual Site

Abstract The tri-block copolymer is used as a carrier to simultaneously immobilize the N-heterocyclic and benzylidene ligands precursor of the Ru-based catalyst to form a dual-site immobilized catalyst. The dual-site immobilized catalyst can catalyze ring-opening metathesis polymerization, ring-closing metathesis and self-metathesis. The dual-site immobilized catalyst shows good heterogeneity in dichloromethane, which simplifies the purification of product and recovery of catalyst. The dual-site immobilized catalyst exhibits excellent activity and recycling performance. The excellent recyclability can be attributed to the capture of ruthenium by the excess ligands precursor on carrier. Importantly, ruthenium residues are not detected in product.

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