Jump to main content
Jump to site search

Issue 41, 2009
Previous Article Next Article

Ring-opening metathesispolymerization-derived, polymer-bound Cu-catalysts for click-chemistry and hydrosilylation reactions under micellar conditions

Author affiliations

Abstract

Ring-opening metathesis polymerization has been used for the synthesis of the amphiphilic block-copolymer poly(M1-co-M3)-b-poly(M2) from the hydrophilic monomer 5-{2-[2-(2-methoxy-ethoxy)-ethoxy]-ethoxymethyl}-7-oxabicyclo[2.2.1]hept-2-ene (M2), and the hydrophobic monomers endo,exo-5-decyloxymethyl-bicyclo[2.2.1]hept-2-ene (M1) and 1,3-di(1-mesityl)-4-{[(bicyclo[2.2.1]hept-5-en-2-ylcarbonyl)oxy]methyl}-4,5-dihydro-1H-imidazol-3-ium carboxylate (M3). Poly(M1-co-M3)-b-poly(M2) was loaded with Cu and the resulting CuI-loaded polymer poly(M1-co-M3)-b-poly(M2)–Cu was used for a series of Cu-catalyzed reactions under micellar conditions, i.e. for the [3 + 2] cycloaddition of azides to alkynes and for carbonyl hydrosilylation reactions. Under such micellar conditions, the polymer-bound Cu-catalyst was found to be an efficient catalyst for all reactions investigated. Turn-over numbers (TONs) in cycloaddition reactions were in the range of 200–375, those in hydrosilylation reactions ∼2000 allowing for Cu-loadings of 0.05 mol% with respect to substrate.

Graphical abstract: Ring-opening metathesis polymerization-derived, polymer-bound Cu-catalysts for click-chemistry and hydrosilylation reactions under micellar conditions

Back to tab navigation

Supplementary files

Article information


Submitted
11 May 2009
Accepted
26 Jun 2009
First published
31 Jul 2009

Dalton Trans., 2009, 9043-9051
Article type
Paper

Ring-opening metathesis polymerization-derived, polymer-bound Cu-catalysts for click-chemistry and hydrosilylation reactions under micellar conditions

G. M. Pawar, B. Bantu, J. Weckesser, S. Blechert, K. Wurst and M. R. Buchmeiser, Dalton Trans., 2009, 9043
DOI: 10.1039/B909180G

Social activity

Search articles by author

Spotlight

Advertisements