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Polymers 2016, 8(4), 140; doi:10.3390/polym8040140

Supported Catalysts Useful in Ring-Closing Metathesis, Cross Metathesis, and Ring-Opening Metathesis Polymerization

1
Department of Chemistry, Texas A & M University, College Station, TX 77840, USA
2
Department of Chemistry, Texas A & M University at Qatar, P.O. Box 23874, Doha, Qatar
*
Author to whom correspondence should be addressed.
Academic Editor: Changle Chen
Received: 17 March 2016 / Revised: 1 April 2016 / Accepted: 7 April 2016 / Published: 12 April 2016

Abstract

Ruthenium and molybdenum catalysts are widely used in synthesis of both small molecules and macromolecules. While major developments have led to new increasingly active catalysts that have high functional group compatibility and stereoselectivity, catalyst/product separation, catalyst recycling, and/or catalyst residue/product separation remain an issue in some applications of these catalysts. This review highlights some of the history of efforts to address these problems, first discussing the problem in the context of reactions like ring-closing metathesis and cross metathesis catalysis used in the synthesis of low molecular weight compounds. It then discusses in more detail progress in dealing with these issues in ring opening metathesis polymerization chemistry. Such approaches depend on a biphasic solid/liquid or liquid separation and can use either always biphasic or sometimes biphasic systems and approaches to this problem using insoluble inorganic supports, insoluble crosslinked polymeric organic supports, soluble polymeric supports, ionic liquids and fluorous phases are discussed. View Full-Text
Keywords: ROMP; supported catalysts; olefin metathesis; green chemistry ROMP; supported catalysts; olefin metathesis; green chemistry
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Suriboot, J.; Bazzi, H.S.; Bergbreiter, D.E. Supported Catalysts Useful in Ring-Closing Metathesis, Cross Metathesis, and Ring-Opening Metathesis Polymerization. Polymers 2016, 8, 140.

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