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Kinetic and mechanistic investigation of the sequential hydrogenation of phenylacetylene catalyzed by OsHCl(CO)(PR3)2 [PR3 = PMe-tert-Bu2 and P-i-Pr3]

✍ Scribed by Andriollo, Antida; Esteruelas, Miguel A.; Meyer, Uwe; Oro, Luis A.; Sanchez-Delgado, Roberto A.; Sola, Eduardo; Valero, Cristina; Werner, Helmut

Book ID
127380747
Publisher
American Chemical Society
Year
1989
Tongue
English
Weight
874 KB
Volume
111
Category
Article
ISSN
0002-7863

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Kinetic and mechanistic investigation of
Kinetic and mechanistic investigation of the sequential hydrogenation of phenylacetylene catalyzed by rhodium (I) phosphine complexes of the type [Rh(Ξ·2-O2Z)(PR3)2]
✍ U. MΓΆhring; M. SchΓ€fer; F. Kukla; M. Schlaf; H. Werner πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 708 KB

Chelate complexes of the type [ Rh( q2-0,Z) (PR,),] (Z = CCH,, CCF3, CtBu, S( 0) -p-C&I&H,; PR, = PiPr,, PPhiPr,, PPh,iPr) catalyze the hydrogenation of phenylacetylene in toluene solution at 60Β°C. Selectivities close to 100% are achieved for the hydrogenation of the alkyne to the alkene in the pre