发明授权
- 专利标题: Process for making amides
- 专利标题(中): 制造酰胺的过程
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申请号: US13847019申请日: 2013-03-19
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公开(公告)号: US08637687B2公开(公告)日: 2014-01-28
- 发明人: Wilhelm Barlage , Javier Raya , Joaquin Bigorra Llosas , Harald Röβler
- 申请人: BASF SE
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Servilla Whitney LLC
- 主分类号: C07C231/00
- IPC分类号: C07C231/00
摘要:
Provided are processes for making an amide of a carboxylic acid by reacting an amine of the formula (I) H—NR1R2 (I) wherein R1 and R2 are the same or different, R1 comprising a C1-C4-alkyl, and R2 comprising hydrogen or a C1-C4-alkyl, the amine having a lower boiling point than water, with a carboxylic acid with at least 3 carbon atoms per molecule, said carboxylic acid optionally comprising at least one alcoholic hydroxyl group per molecule, and selecting a molar ratio of amine to carboxylic acid in the range of from 1.5:1 to 1:1. The reaction step occurs under temperature and pressure conditions at which water and amine according to formula (I) are gaseous, and in a single reactor, the water formed together with any unreacted amine is distilled off, any unreacted amine is separated from the water and said the unreacted amine is reintroduced into the reaction mixture.
公开/授权文献
- US20130245297A1 Process For Making Amides 公开/授权日:2013-09-19
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