METHOD FOR PRODUCING A CARBOXYLIC ACID AMIDE FROM A CARBONYL COMPOUND AND HYDROCYANIC ACID
    3.
    发明申请
    METHOD FOR PRODUCING A CARBOXYLIC ACID AMIDE FROM A CARBONYL COMPOUND AND HYDROCYANIC ACID 有权
    从碳化合物和羟基酸生产羧酸酰胺的方法

    公开(公告)号:US20120232305A2

    公开(公告)日:2012-09-13

    申请号:US13131462

    申请日:2009-10-29

    IPC分类号: C07C67/20 C07C231/24

    摘要: 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.

    摘要翻译: 本发明涉及一种由羰基化合物和氢氰酸制备羧酸酰胺的方法,包括以下步骤:a)使羰基化合物与氢氰酸反应生成羟基羧酸腈,B)水解得到的羟基羧酸腈 步骤A)在包含二氧化锰的催化剂存在下,其中相对于氢氰酸使用摩尔过量的羰基化合物以使羰基化合物与氢氰酸根据步骤A)反应,并将步骤A中获得的反应混合物 )在根据步骤B)进行水解之前未经蒸馏纯化。 本发明还涉及从聚合物,成型化合物和成型体制备(甲基)丙烯酸烷基酯的方法,其中根据上述方法由羰基化合物和氢氰酸制备羧酸酰胺的方法。