[EN] PROCESS FOR PRODUCING SULFUR-CONTAINING AMINO ACID OR SALT THEREOF<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN ACIDE AMINÉ CONTENANT DU SOUFRE OU DE L'UN DE SES SELS
申请人:SUMITOMO CHEMICAL CO
公开号:WO2011118849A1
公开(公告)日:2011-09-29
According to the present invention, a new process for producing a sulfur-containing amino acid without using of hydrogen cyanide or sodium azide which requires careful handling as a raw material can be provided. The present invention relates to a process for producing a sulfur-containing amino acid represented by the following formula (1) or a salt thereof: wherein R1 is an alkyl group having 1 to 12 carbon atoms and optionally having substituents or a cycloalkyl group having 3 to 12 carbon atoms and optionally having substituents, and n is an integral number of from 1 to 4, comprising a step of reacting a sulfur-containing 2-ketocarboxylic acid represented by the formula (2) or a salt thereof: wherein R1 and n mean the same as defined above, with ammonia and hydrogen in the presence of a transition metal catalyst.
根据本发明,可以提供一种新的生产含硫氨基酸的方法,而不需要使用需要小心处理的氢氰酸或偏氮化钠作为原料。本发明涉及一种生产以下式(1)或其盐所表示的含硫氨基酸的方法:其中R1是具有1至12个碳原子并可选择具有取代基的烷基或具有3至12个碳原子并可选择具有取代基的环烷基,n是从1至4的整数,包括以下步骤:在过渡金属催化剂的存在下,将以下式(2)或其盐所表示的含硫2-酮羧酸与氨和氢反应。其中R1和n的含义如上所定义。