| 摘要 |
PURPOSE:In reacting an olefin with an alcohol and an ester of nitrous acid, to obtain the titled substance useful as a raw material for synthesizing agricultural chemicals, etc. by a simple operation in high yield, by contacting them in a gaseous phase in the presence of both a platinum group metal and an iron compound. CONSTITUTION:An olefin such as ethylene, propylene, etc. is brought into contact with an alcohol and an ester of nitrous acid using a platinum group metal such as palladium, platinum, etc. or their hydrochlorides as a catalyst and an iron compound as a cocatalyst in a gaseous phase, to give an acetal. The reaction is carried out usually in a temperature range of 50-200 deg.C at normal pressure or under pressure, for example, at <=20kg/cm<2> (gauge). FeCl2, FeCl3.6H2O, FeBr3, etc. are useful as the iron compound, and its amount used is an amount to give an atom ratio of iron to the platinum group metal or 0.1-10, preferably 0.5-5. |
