发明授权
US06465680B2 Process for preparing malonate derivatives or &bgr;-keto esters from epoxide derivatives
失效
由环氧化物衍生物制备丙二酸酯衍生物或β-酮酯的方法
- 专利标题： Process for preparing malonate derivatives or &bgr;-keto esters from epoxide derivatives
- 专利标题（中）： 由环氧化物衍生物制备丙二酸酯衍生物或β-酮酯的方法
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申请号： US09884440申请日： 2001-06-20
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公开(公告)号： US06465680B2公开(公告)日： 2002-10-15
- 发明人: Byeong No Lee , In-Sun Jung , Eun Joo Jang
- 申请人： Byeong No Lee , In-Sun Jung , Eun Joo Jang
- 优先权： KR00-33905 20000620
- 主分类号： C07C6966
- IPC分类号： C07C6966
摘要：
A process for preparing a malonic acid monoester or &bgr;-ketoester from an epoxide includes the steps of reacting an epoxide with carbon monoxide and an alcohol in the presence of a catalytic amount of a cobalt compound and at least one promoter to produce a &bgr;-hydroxyester, separating the &bgr;-hydroxyester from the cobalt compound and the promoter, and oxidizing the &bgr;-hydroxyester to produce a malonic acid monoester or &bgr;-ketoester.