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J Am Chem Soc. 2001 Jun 13;123(23):5396-400.

Regiochemistry in the Pauson-Khand reaction: has a trans effect been overlooked?

Author information

  • 1Universit√© Joseph Fourier de Grenoble, Chimie Recherche (LEDSS), 38041 Grenoble, France.

Abstract

Alkyne-dicobalt hexacarbonyl complexes have been studied by DFT to examine whether electronic differences in the acetylenic substituents could play a role in determining the regiochemical outcome in the Pauson-Khand reaction. It appears that in some instances the regiochemistry is, in fact, governed exclusively by the electronic nature of the acetylenic substituents through the discriminant loss of a carbon monoxide ligand.

PMID:
11389617
[PubMed]
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