Stereoselective hydrogenation of tert-butylphenols over charcoal-supported rhodium catalyst in supercritical carbon dioxide solvent
N Hiyoshi, CV Rode, O Sato, H Tetsuka, M Shirai
Index: Hiyoshi, Norihito; Rode, Chandrashekhar V.; Sato, Osamu; Tetsuka, Hiroyuki; Shirai, Masayuki Journal of Catalysis, 2007 , vol. 252, # 1 p. 57 - 68
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Citation Number: 24
Abstract
Hydrogenation of 2-, 3-, and 4-tert-butylphenols was studied over a charcoal-supported rhodium catalyst in supercritical carbon dioxide (scCO2) solvent, and the results were compared with those in organic solvents. In the hydrogenation of 4-tert-butylphenol, a higher cis ratio for 4-tert-butylcyclohexanol (0.79) was obtained in scCO2 (10 MPa) than in 2- propanol (0.70) and cyclohexane (0.64) under similar conditions of hydrogen pressure (2 ...
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