基本信息:
- 专利标题: PROCESS FOR THE PREPARATION OF LEVULINIC ACID ESTERS
- 专利标题(中):制备水杨酸酯的方法
- 申请号:PCT/EP2013/075963 申请日:2013-12-09
- 公开(公告)号:WO2014087017A1 公开(公告)日:2014-06-12
- 发明人: RIJKE, DE, Arie , HANGX, Gerardus Wilhelmus Adrianus , PARTON, Rudy Francois Maria Jozef , ENGENDAHL, Barthel
- 申请人: DSM IP ASSETS B.V.
- 申请人地址: Het Overloon 1 NL-6411 TE Heerlen NL
- 专利权人: DSM IP ASSETS B.V.
- 当前专利权人: DSM IP ASSETS B.V.
- 当前专利权人地址: Het Overloon 1 NL-6411 TE Heerlen NL
- 代理机构: ARENDSEN, Alexander Ferdinand
- 优先权: EP12196074.4 20121207; US61/734,510 20121207
- 主分类号: C07C67/03
- IPC分类号: C07C67/03 ; C07C67/08 ; C07C69/716 ; C07C315/00 ; C07C51/00 ; C07D307/46
摘要:
The invention relates to a process for the preparation of a levulinic acid ester from a composition comprising levulinic acid and optionally a compound having a boiling temperature of less than 245°C, said process comprising: - subjecting the composition to distillation and recovering a residue comprising at least 1 wt% angelica lactone; and - subjecting the recovered residue to an esterification reaction comprising an alkanol under conditions and time and temperature to produce the levulinic acid ester. The process is simple and affords levulinic ester at high yields.
摘要(中):
本发明涉及由包含乙酰丙酸和任选的沸点低于245℃的化合物的组合物制备乙酰丙酸酯的方法,所述方法包括: - 使组合物蒸馏并回收包含 至少1wt%当归内酯; 并且在条件和时间和温度下对回收的残余物进行包含链烷醇的酯化反应以产生乙酰丙酸酯。 该方法简单,以高产率提供乙酰丙酸酯。