发明授权
US4550193A Process for the preparation of 2,3-dimercaptosuccinic acid and its lower
alkyl esters
失效
制备2,3-二巯基琥珀酸及其低级烷基酯的方法
- 专利标题： Process for the preparation of 2,3-dimercaptosuccinic acid and its lower alkyl esters
- 专利标题（中）： 制备2,3-二巯基琥珀酸及其低级烷基酯的方法
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申请号： US385953申请日： 1982-06-07
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公开(公告)号： US4550193A公开(公告)日： 1985-10-29
- 发明人: Martin K. O. Lindemann , Elvin R. Lukenbach
- 申请人： Martin K. O. Lindemann , Elvin R. Lukenbach
- 申请人地址： NJ New Brunswick
- 专利权人： Johnson & Johnson Baby Products Company
- 当前专利权人： Johnson & Johnson Baby Products Company
- 当前专利权人地址： NJ New Brunswick
- 主分类号： C07C149/20
- IPC分类号： C07C149/20 ; C07C148/00
摘要：
2,3-dimercaptosuccinic acid and esters thereof are prepared by reacting sodium thiosulfate with acetylene dicarboxylic acid in the presence of a strong acid and subjecting the resulting alkylthiosulfate to an acid hydrolysis. The 2,3-dimercaptosuccinic acids and esters thereof are useful as an antidote for heavy metal poisoning.
公开/授权文献
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