| 摘要 |
PURPOSE:To economically obtain the titled compound used as an intermediate for medicine and agricultural chemical, polyester monomer or antioxidant, by heating inexpensive and readily available chlorohexylhydroquinone used as a starting raw material in the presence of a specific catalyst. CONSTITUTION:Cyclohexyl hydroquinone used as a starting raw material compound is heated and reacted in the presence of a catalyst carrying a platinum group metal treated with a divalent sulfur compound normally at 250-500 deg.C, preferably 300-400 deg.C to provide the aimed compound. The platinum group metal used as the above-mentioned catalyst is platinum, ruthenium, etc. and a metal oxide such as silicon dioxide or alumina is used as a support carrying the platinum group metal. The catalyst is produced by carrying the above- mentioned platinum group metal and caustic alkali on the metal oxide and treating the composite with the divalent sulfur compound. An addition amount of the sulfur compound to the catalyst is preferably 0.01-1%. |
