基本信息:
- 专利标题： PROCESS OF PRODUCTION OF SPECIFIC ACETALS AND KETALS
- 专利标题（中）：生产特定的乙缩醛和酮的过程
- 申请号：EP16700124.7 申请日：2016-01-08
- 公开(公告)号：EP3242864A1 公开(公告)日：2017-11-15
- 发明人： BONRATH, Werner , CLAVEY, Thomas , GUMMIN, Ingolf , MASCARELLO, Francesco , SCHULZ, Peter , THOMANN, Michael , WASSERSCHEID, Peter
- 申请人： DSM IP Assets B.V.
- 申请人地址： Het Overloon 1 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 6411 TE Heerlen NL
- 代理机构： Kurt, Manfred
- 优先权： EP15150621 20150109
- 国际公布： WO2016110560 20160714
- 主分类号： C07C41/56
- IPC分类号： C07C41/56 ; C07C309/14
摘要：
The present invention relates to a method to produce specific acetals and ketals. The acetals and ketals, which are produced by the process according to the present invention are the ones of formula (I) wherein R is H or C1-, -C4 -alkyl, and R1 is C1-, -C4 -alkyl, and R2 is C1-, -C6 -alkyl. Surprisingly, it was found that the use of the specific ionic liquids and the use of a low reaction temperature (below room temperature) allows producing acetals and ketals of formula (I) in excellent yield in the absence of HCI as well as in the absence of any anhydrous calcium sulfate (or compounds having the same purpose).
公开/授权文献:
- EP3242864B1 PROCESS OF PRODUCTION OF SPECIFIC KETALS 公开/授权日：2019-08-14
IPC结构图谱:
| C | 化学；冶金 |
| --C07 | 有机化学 |
| ----C07C | 无环或碳环化合物 |
| ------C07C41/00 | 醚的制备；有COOC基、COOCOC基或COOCOCOC基的化合物的制备 |
| --------C07C41/01 | .醚的制备 |
| ----------C07C41/50 | ..通过产生COOC基的反应 |
| ------------C07C41/56 | ...通过醛、多聚甲醛或酮的缩合 |