The present invention relates to a process for producing a carboxylic acid ester, comprising a step of oxidizing an aldehyde by mixing an alcohol, carbon dioxide, the aldehyde and at least one compound selected from the group consisting of compounds represented by the formulae (2-1) and (2-2): wherein R2 represents an alkyl group optionally having a substituent or the like; R3 and R4 each independently represents an alkyl group optionally having a substituent or the like or R3 and R4 are linked together to form a divalent hydrocarbon group optionally having a substituent or the like; Y represents a group of -S- or a group of -N(R5)-, wherein R5 represents an alkyl group optionally having a substituent or the like, or R5 is linked to R4 to form a divalent hydrocarbon group optionally having a substituent; and R8 represents an alkyl group.
本发明涉及一种生产
羧酸酯的方法,包括通过混合醇、
二氧化碳、醛和来自由式(2-1)和(2-2)所代表的化合物组成的群体中至少选取一种化合物,氧化醛的步骤:其中R2代表可能具有取代基等的烷基基团;R3和R4各自独立地代表可能具有取代基等的烷基基团,或者R3和R4连接在一起形成可能具有取代基等的二价碳氢基团;Y代表一个-S-基团或一个-N(R5)-基团,其中R5代表可能具有取代基等的烷基基团,或者R5连接到R4形成可能具有取代基的二价碳氢基团;R8代表一个烷基基团。