Functionalized polyglycidol-CuCl-complexes as catalysts in the oxidative coupling reaction of terminal acetylenes |
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Authors: | Raul Salazar Lioudmila Fomina Serguei Fomine |
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Affiliation: | (1) Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apartado Postal 70-360, CU, Coyoacán, México DF 04510, México e-mail: fomine@servidor.unam.mx, MX |
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Abstract: | Summary
Novel hyperbranched amino-terminated polyglycidoles have been synthesized and tested as macromolecular ligands in the oxidative
coupling reaction of phenylacetylene. Amino-terminated polyglycidoles-CuCl complexes showed to be more effective catalysts
than the reference monomeric tertiary amines-CuCl ones, but less effective than the most efficient N,N,N'N'-tetramethylethylenediamine-(TMDA)
CuCl complex. The difference in performance of monomeric and hyperbranched ligands is probably due to two factors. The first
one is better complexation abilities and the second is the local increase of reagent concentration.
Received: 28 April 2001/Revised version: 29 August 2001/Accepted: 5 September 2001 |
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Keywords: | |
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