Aspects of catalysis. Part IV. Hydrogen transfer from propan-2-ol to αβ-unsaturated ketones catalysed by a soluble hydridoiridium complex. Isolation of a compound containing a carbon–iridium bond and a chelated keto-group

1974 ◽  
pp. 601-603 ◽  
Author(s):  
H. Bernard Henbest ◽  
Jadwiga Trocha-Grimshaw
Keyword(s):  
Hydrogen Transfer ◽  
Keto Group ◽  
Unsaturated Ketones

Electron-rich iridium complexes with mixed-donor polydentate ligands. Chemoselective catalysts in hydrogen-transfer reduction of .alpha.,.beta.-unsaturated ketones

1990 ◽  
Vol 112 (25) ◽  
pp. 9190-9197 ◽  
Author(s):  
Claudio Bianchini ◽  
Erica Farnetti ◽  
Mauro Graziani ◽  
Giorgio Nardin ◽  
Alberto Vacca ◽  
...  
Keyword(s):  
Hydrogen Transfer ◽  
Iridium Complexes ◽  
Unsaturated Ketones ◽  
Polydentate Ligands ◽  
Alpha Beta

Photochemische Synthese von Pinocarvon-, Pulegon- und Benzalacetophenon-tricarbonyleisen. Ein Beitrag zur Frage der Bindung α, β-ungesättigter Ketone in Eisen-Komplexen / Photochemical Synthesis of Pinocarvone-, Pulegone-, and Benzalacetophenone-tricarbonyliron. A Contribution to the Nature of Bonding in Iron-Complexes of α,β-unsaturated Ketones

1972 ◽  
Vol 27 (4) ◽  
pp. 392-400 ◽  
Author(s):  
E. Koerner Von Gustorf ◽  
F.-W. Grevels ◽  
C. Krüger ◽  
G. Olbrich ◽  
F. Mark ◽  
...  
Keyword(s):  
Transition Metals ◽  
Carbonyl Compounds ◽  
Iron Complexes ◽  
Photochemical Synthesis ◽  
Keto Group ◽  
Spectroscopic Evidence ◽  
X Ray ◽  
Unsaturated Ketones ◽  
Preferential Site ◽  
Monodentate Coordination

The photochemical synthesis of the title compounds is described. It has been established by spectroscopic evidence and by the x-ray structure of pinocarvone tricarbonyliron that in all these cases bonding to the iron involves only the π-system of the α,β-unsaturated ketones and not the nonbonding electrons of the keto group. The preferential site of monodentate coordination of α,β-unsaturated carbonyl compounds to transition metals is discussed on the basis of MO-considerations which are extended to 1,2-dicarbonyl compounds.

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