| 摘要 |
PURPOSE:To obtain an oxygen-containing compound useful as a raw material of perfumes, pharmaceuticals, agricultural chemicals, etc., continuously, in high yield, by oxidizing cyclopentene in the presence of a palladium compound and a molybdenum-based heteropolyacid compound in combination with hydrogen peroxide. CONSTITUTION:An oxygen-containing compound such as 2-cyclopenten-1-one, cyclopentanone, cyclopentanol, etc. is prepared economically, in an industrial scale, without loss of the catalytic activity, by oxidizing cyclopentene in the presence of (A) a palladium compound, (B) a molybdenum-based heteropolyacid compound and (C) hydrogen peroxide, at 20-800 deg.C, preferably using a solvent which dissolves at least a part of the components A-C. The molar ratios of A and B to cyclopentene are preferably about 0.1-0.005 and 2-20, respectively, and that of C to palladium is about 2-20, from the economical view point. |
