
基本信息:
- 专利标题: 一种左旋盐酸去甲基苯环壬酯的制备方法
- 专利标题(英):Preparation method of demethyl levophencynonate hydrochloride
- 申请号:CN201711167882.0 申请日:2017-11-21
- 公开(公告)号:CN109810059A 公开(公告)日:2019-05-28
- 发明人: 宫宁瑞
- 申请人: 盘锦格林凯默科技有限公司
- 申请人地址: 辽宁省盘锦市双台子区双盛街道宋家村
- 专利权人: 盘锦格林凯默科技有限公司
- 当前专利权人: 盘锦格林凯默科技有限公司
- 当前专利权人地址: 辽宁省盘锦市双台子区双盛街道宋家村
- 主分类号: C07D221/22
- IPC分类号: C07D221/22
摘要:
本发明属于化工中间体制备领域,具体涉及一种左旋盐酸去甲基苯环壬酯的制备方法。该制备方法该制备方法以苄胺为原料制备N,N-二乙氧基甲基苄胺,该苄胺与环己酮反应、选择性还原,再与(R)-α-苯基-α-环戊基-α-羟基乙酸甲酯反应,经氢化、成盐得到目标产物左旋盐酸去甲基苯环壬酯,提高收率,降低了成本,操作简单。
摘要(英):
The invention belongs to the field of preparation of chemical intermediates, and specifically relates to a preparation method of demethyl levophencynonate hydrochloride. The preparation method is characterized in that benzylamine as a raw material is prepared into N,N-diethoxy methyl benzylamine; the N,N-diethoxy methyl benzylamine reacts with cyclohexanone and is selectively reduced, and reacts with (R)-alpha-phenyl-alpha-cyclopentyl-alpha-methyl glycolate; and a target product, namely the demethyl levophencynonate hydrochloride, is obtained through hydrogenation and salifying. The yield is improved; the cost is reduced; and operation is simple.
IPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07D | 杂环化合物 |
------C07D221/00 | 杂环化合物,含六元环、有1个氮原子作为惟一的杂环原子、C07D211/00至C07D219/00各组内不包含的 |
--------C07D221/02 | .与碳环或碳环系稠合 |
----------C07D221/22 | ..桥接的环系 |