METHOD FOR PRODUCING A CARBOXYLIC ACID AMIDE FROM A CARBONYL COMPOUND AND HYDROCYANIC ACID
申请人:May Alexander
公开号:US20110306784A1
公开(公告)日:2011-12-15
The invention relates to a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid, comprising the steps of A) reacting a carbonyl compound with hydrocyanic acid to produce a hydroxycarboxylic acid nitrile, B) hydrolysis of the hydroxycarboxylic acid nitrile obtained in step A) in the presence of a catalyst comprising manganese dioxide, wherein a molar excess of carbonyl compound is used in relation to the hydrocyanic acid to react the carbonyl compound with hydrocyanic acid according to step A), and the reaction mixture obtained in step A) is not purified by distillation before the hydrolysis according to step B) is carried out. The invention furthermore relates to a method for producing alkyl(meth)acrylates from polymers, moulding compounds and moulded bodies, wherein a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid is carried out in accordance with the method described above.
该发明涉及一种从羰基化合物和氰化氢生产羧酸酰胺的方法,包括以下步骤:A)将羰基化合物与氰化氢反应,生成羟基羧酸腈;B)在含有二氧化锰催化剂的条件下水解步骤A)中获得的羟基羧酸腈,其中在与步骤A)中的氰化氢反应的羰基化合物中使用过量的摩尔量,且在进行步骤B)的水解之前,不对步骤A)中获得的反应混合物进行蒸馏纯化。此外,该发明还涉及一种从聚合物、成型复合材料和成型体中生产烷基(甲基)丙烯酸酯的方法,其中根据上述描述的方法进行从羰基化合物和氰化氢生产羧酸酰胺的方法。