申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:US05310944A1
公开(公告)日:1994-05-10
A process for producing a carboxylated compound, which comprises reacting a carbonyl compound with hydrogen peroxide in the presence of an organo-arsenic acid of the formula (1), ##STR1## wherein: R.sup.1 is a C.sub.1 -C.sub.12 alkyl group which may be substituted or an aryl group which may be substituted, R.sup.2 is a hydroxyl group or the same group as that which defines R.sup.1, or alternatively, R.sup.1 and R.sup.2 may bond to each other to form a five-membered or six-membered ring together with As atoms to which these groups are bonded, and the substituent(s) substituted on the above groups is/are selected from hydroxyl, carboxyl, carbonyl, sulfonyl, sulfonium, an amino group, an ammonium group, an alkyl group, an alkoxyl group and a halogen atom, while a water concentration in a reaction system is maintained at not more than 2% by weight, thereby to form a corresponding carboxylated compound.
一种生产羧化化合物的方法,包括在式(1)的有机砷酸存在下,将羰基化合物与过氧化氢反应,其中:式中R1是C1-C12烷基或取代的芳基,R2是羟基或与R1相同的基团,或者R1和R2可以与砷原子结合形成与这些基团一起的五元环或六元环;上述基团上的取代基包括羟基、羧基、羰基、磺酰基、磺离子、氨基、铵基、烷基、烷氧基和卤素原子,反应体系中的水浓度保持在不超过2%的重量百分数,从而形成相应的羧化化合物。