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Pure and Applied Chemistry

The Scientific Journal of IUPAC

Ed. by Burrows, Hugh / Weir, Ron / Stohner, Jürgen

12 Issues per year

IMPACT FACTOR 2013: 3.112
Rank 41 out of 148 in category Multidisciplinary Chemistry in the 2013 Thomson Reuters Journal Citation Report/Science Edition

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Pauson­Khand-type reaction mediated by Rh(I) catalysts

Nakcheol Jeong1 / Byung Ki Sung1 / Jin Sung Kim1 / Soon Bong Park1 / Sung Deok Seo1 / Jin Young Shin1 / Kyu Yeol In1 / Yoon Kyung Choi1

1Department of Chemistry and Division of Chemistry and Molecular Engineering, Korea University, Seoul, 136-701, Korea

Citation Information: Pure and Applied Chemistry. Volume 74, Issue 1, Pages 85–91, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: 10.1351/pac200274010085, January 2009

Publication History

Published Online:
2009-01-01

Cocyclization of alkynes, alkenes, and carbon monoxide by transition metals (known as Pauson­Khand reaction when dicobalt octacarbonyl complexes are used) has been accepted as one of the most powerful tools in the synthesis of cyclopentenones. Despite significant progress in the various aspects of the reaction, we still needed new catalysts to expand the scope of the reaction further.

We found rhodium (I) catalysts, e.g., RhCl(PPh3)3, trans-RhCl(CO)(PPh3)2, RhCl-(CO)(dppe), and trans-[RhCl(CO)(dppp)]2, were also effective for this transformation. The scope and the efficiencies of the reaction could be tuned and expanded by the choice of catalysts. For example, we were able to devise an enantioselective PK-type reaction and a tandem strategy employing two catalysts in one pot. These results will be presented.

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