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January 24, 2010 | History

Synthetic applications and mechanistic studies of metal-catalyzed dehydrocoupling reactions of amine-borane adducts 1 edition

Synthetic applications and mechanistic studies of metal-catalyzed dehy ...
Kajin Lee

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Synthetic applications and mechanistic studies of metal-catalyzed dehydrocoupling reactions of amine-borane adducts.

Published 2006 .
Written in English.

About the Book

The scope and selectivity of Rh(0)-catalyzed tandem dehydrocoupling-hydrogenation reactions have been investigated utilizing Me2NH•BH3 as a stoichiometric H2 source. The influence of the presence of amine-borane adducts on the distinctive selectivity of hydrogenation of organic substrate is demonstrated. Previous studies in our group have shown that the catalytic dehydrocoupling of the amine-borane adduct Me2NH•BH 3 using Rh(I) precatalyst such as using [Rh(1,5-cod)Cl]2 involves the formation of Rh(0) colloids during the lengthy induction period followed by a heterogeneous process (cod = cyclooctadiene). Recently another group, Autrey and co-workers, has studied the same reaction under slightly different experimental procedure and reported very different results (virtually no induction period, and homogeneous catalysis involving a Rh6 species). A preliminary investigation aims to explain these different observations. The results suggest that the presence of air in the reaction mixture may explain the results of Autrey and co-workers.

Edition Notes

Source: Masters Abstracts International, Volume: 44-06, page: 2806.

Thesis (M.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.

The Physical Object

87 leaves.
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History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page