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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

Pagination
87 leaves.
Number of pages
87

ID Numbers

Open Library
OL19215554M
ISBN 13
9780494163207

History

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