申请人:Nippon Shokubai Co., Ltd.
公开号:EP1090902A2
公开(公告)日:2001-04-11
In a producing method of alcohols such as cyclohexanedimethanol, a benzyl ester is obtained, for example, by the reaction between a benzyl compound and carboxylic acid in the presence of oxygen and a catalyst including palladium, gold ultra fine particles, and at least one kind of element selected from the group consisting of Group IIA, IIIA, VIA, IIB, VB, and VIII of the periodic table, and alkali metal. The alcohols are produced by hydrogenating a benzene ring of the benzyl ester and then hydrolyzing the resultant esters. Alternatively, the benzyl ester is hydrolyzed to produce benzyl alcohols, and a benzene ring of the benzyl alcohols is hydrogenated to produce the alcohols.
在醇类(如环己烷二甲醇)的生产方法中,例如,通过苄基化合物和羧酸在氧气和催化剂(包括钯、金超微粒子和至少一种选自元素周期表 IIA、IIIA、VIA、IIB、VB 和 VIII 族的元素以及碱金属)的存在下发生反应而获得苄酯。醇是通过氢化苄酯的苯环,然后水解生成的酯而产生的。或者,先水解苄酯,生成苄醇,再氢化苄醇的苯环,生成醇。