Title

Benzylidene-Functionalized Ruthenium-Based Olefin Metathesis Catalysts For Ring-Opening Metathesis Polymerization In Organic and Aqueous Media

Document Type

Article

Publication Date

12-17-2007

Department

Polymers and High Performance Materials

Abstract

New catalysts (PCy(3))(2)Cl(2)Ru=CH(p-C(6)H(4))CH(2)P(CH(3))(3)(+)Cl(-) (5) and (PCy(3))(2)Cl(2)Ru=CH(p-C(6)H(4))CH(2)-N(CH(3))(2) (6) as well as the literature compound (PCy(3))(2)Cl(2)Ru=CH(pC(6)H(4))N(CH(3))(2) (7) have been synthesized via alkylidene exchange from Grubbs' catalyst in a one-step reaction. The catalysts promoted ROMP of the cationic exo-7-oxanorbornene derivative 11 under homogeneous conditions in various protic media including aqueous/alcoholic 1:1 mixtures, and in many cases, particularly for catalysts 5 and 6, the polymerizations proceeded in a controlled manner.

Publication Title

Organometallics

Volume

26

Issue

26

First Page

6515

Last Page

6518