Reactivity of ketones in homogeneous catalytic hydrogenation with cationic rhodium complexes

1981 ◽  
pp. 2650 ◽  
Author(s):  
Hiroshi Fujitsu ◽  
Eiichi Matsumura ◽  
Kenjiro Takeshita ◽  
Isao Mochida
Keyword(s):  
Catalytic Hydrogenation ◽  
Rhodium Complexes

ChemInform Abstract: CATALYTIC HYDROGENATION OF STYRENE OXIDE WITH CATIONIC RHODIUM COMPLEXES

1981 ◽  
Vol 12 (42) ◽  
Author(s):  
H. FUJITSU ◽  
S. SHIRAHAMA ◽  
E. MATSUMURA ◽  
K. TAKESHITA ◽  
I. MOCHIDA
Keyword(s):  
Catalytic Hydrogenation ◽  
Styrene Oxide ◽  
Rhodium Complexes

ChemInform Abstract: CATALYTIC HYDROGENATION OF 3,4-EPOXY-1-BUTENE WITH CATIONIC RHODIUM COMPLEXES

1982 ◽  
Vol 13 (25) ◽  
Author(s):  
H. FUJITSU ◽  
E. MATSUMURA ◽  
S. SHIRAHAMA ◽  
K. TAKESHITA ◽  
I. MOCHIDA
Keyword(s):  
Catalytic Hydrogenation ◽  
Rhodium Complexes

Selective catalytic oxidation using hydrogen/oxygen mixtures with solutions of iridium and rhodium complexes

1983 ◽  
Vol 61 (6) ◽  
pp. 1332-1338 ◽  
Author(s):  
Mark T. Atlay ◽  
Michael Preece ◽  
Giorgio Strukul ◽  
Brian R. James
Keyword(s):  
Oxygen Atom ◽  
Catalytic Oxidation ◽  
Catalytic Hydrogenation ◽  
Metal Hydride ◽  
Oxidation Products ◽  
Rhodium Complexes ◽  
Oxygen Atom Transfer ◽  
Ambient Temperatures ◽  
Selective Catalytic Oxidation ◽  
Competing Reactions

An iridium(III) hydride complex has been used in solution under a hydrogen/oxygen atmosphere at ambient temperatures to catalyze slowly the selective oxygenation of cyclooctene to cyclooctanone. The H2 acts as a two-equivalent reducing agent in accepting the second oxygen atom of the O2 molecule to generate water. The overall reaction shows similarities to catalytic oxygenation reactions performed by a class of P450 enzymes. Spectroscopic evidence for the iridium system indicates an oxygen atom transfer to the olefin via a hydroperoxide intermediate (IrOOH), formed by insertion of O2 into the metal hydride bond; the hydride is thought to be regenerated, together with formation of water, by hydrogenolysis of the resulting iridiumhydroxo species. Catalytic hydrogenation of the monoene as well as hydrogenolysis of oxygen to water are observed as competing reactions. Some related rhodium systems do not give selective oxidation products.

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