Regiochemistry in the Pauson-Khand reaction: has a trans effect been overlooked?
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.
Robert
F
F
Université Joseph Fourier de Grenoble, Chimie Recherche (LEDSS), 38041 Grenoble, France.
Milet
A
A
Gimbert
Y
Y
Konya
D
D
Greene
A E
AE