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Rhodium‐catalysed hydrogenation of enamides with monodentate phosphorous ligands. A density functional theory study
Author(s) -
Schiaffino Luca,
Ercolani Gianfranco
Publication year - 2011
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.1756
Subject(s) - chemistry , denticity , phosphine , density functional theory , rhodium , chelation , ligand (biochemistry) , medicinal chemistry , stereochemistry , catalysis , computational chemistry , organic chemistry , metal , biochemistry , receptor
The hydrogenation of enamides catalysed by rhodium complexes of monodentate phosphorous ligands has been studied by density functional theory. The role of trans intermediates, made accessible by the non‐chelating nature of the ligand, has been taken into account. The findings here reported show that cis intermediates play the major role in the mechanism of the reaction, suggesting that data obtained with chiral monodentate phosphorous ligands or with a mixture of them should be interpreted excluding the intervention of structures with trans phosphine arrangement. Thus, results observed with monodentate phosphorous ligands must be interpreted in the light of the exclusive intervention of cis intermediates, without involvement of structures with trans phosphine arrangements. Copyright © 2010 John Wiley & Sons, Ltd.