
基本信息:
- 专利标题: 2-氧-3-哌啶甲酸乙酯的制备方法
- 专利标题(英):Preparation method of 2-oxo-3-ethyl piperidinecarboxylate
- 申请号:CN201810497214.2 申请日:2018-05-22
- 公开(公告)号:CN108484484A 公开(公告)日:2018-09-04
- 发明人: 姚虎生 , 赵珠琳 , 张明 , 陈波
- 申请人: 上海泾维化工科技有限公司
- 申请人地址: 上海市闵行区龙吴路4600号第26幢
- 专利权人: 上海泾维化工科技有限公司
- 当前专利权人: 上海泾维化工科技有限公司
- 当前专利权人地址: 上海市闵行区龙吴路4600号第26幢
- 代理机构: 上海段和段律师事务所
- 代理人: 李佳俊; 郭国中
- 主分类号: C07D211/78
- IPC分类号: C07D211/78 ; C07D211/02
The invention provides a preparation method of 2-oxo-3-ethyl piperidinecarboxylate. The preparation method comprises the following steps: S1, mixing diethyl malonate and a base catalyst uniformly, andthen dropwise adding acrylonitrile at 10 to 50 DEG C for reaction to obtain diethyl 2-(2-cyanoethyl)malonate; S2, reacting 2-(2-cyanoethyl)malonate, an organic solvent and a Raney cobalt catalyst at75-130 DEG C in a hydrogen atmosphere, and carrying out recrystallization to obtain 2-oxo-3-ethyl piperidinecarboxylate. Compared with the prior art, the preparation method has the beneficial effectsthat the raw materials are easily available, the operation is simple, and the total yield reaches 77% or higher compared with a classic N.F.Albertsm method (which is improved by 20%), so that the preparation method is very suitable for industrial production.
公开/授权文献:
- CN108484484B 2-氧-3-哌啶甲酸乙酯的制备方法 公开/授权日:2021-01-05
IPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07D | 杂环化合物 |
------C07D211/00 | 杂环化合物,含氢化吡啶环,不与其他环稠合 |
--------C07D211/04 | .只有氢或碳原子直接连在环氮原子上 |
----------C07D211/06 | ..环原子间或环原子与非环原子间无双键 |
------------C07D211/72 | ...有杂原子或有以3个键连杂原子、其中最多以1个键连卤素的碳原子,直接连在环碳原子上 |
--------------C07D211/78 | ....以3个键连杂原子、其中最多以1个键连卤素的碳原子 |