The epoxidation of 1-octene with H2O2has been examined by using as catalysts a homologous class of 10 (diphosphine)Pt-(CF3)(solv)+and 10 (diphosphine)Pt(CF3)(OH) type complexes, where the diphosphine has been systematically varied. All diphosphines contain two -PPh2groups but differ in the hydrocarbon chain linking together the two phosphorus atoms. The epoxidation reaction experimental conditions have been chosen in order to study the effect of the metal-diphosphine ring size and ring shape on the catalytic activity. It appears that diphosphine complexes with rigid, five-membered chelate rings prove to be the best catalysts. © 1989, American Chemical Society. All rights reserved.
Epoxidation of Olefins Catalyzed by Chelating Diphosphine-Platinum(II) Complexes. Ring-Size and Ring-Shape Effects on the Catalytic Activity
PINNA, Francesco;STRUKUL, Giorgio
1989-01-01
Abstract
The epoxidation of 1-octene with H2O2has been examined by using as catalysts a homologous class of 10 (diphosphine)Pt-(CF3)(solv)+and 10 (diphosphine)Pt(CF3)(OH) type complexes, where the diphosphine has been systematically varied. All diphosphines contain two -PPh2groups but differ in the hydrocarbon chain linking together the two phosphorus atoms. The epoxidation reaction experimental conditions have been chosen in order to study the effect of the metal-diphosphine ring size and ring shape on the catalytic activity. It appears that diphosphine complexes with rigid, five-membered chelate rings prove to be the best catalysts. © 1989, American Chemical Society. All rights reserved.
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