![2,4-二叔丁基-5-氨基酚的制备方法](/CN/2016/1/78/images/201610394376.jpg)
基本信息:
- 专利标题: 2,4-二叔丁基-5-氨基酚的制备方法
- 专利标题(英):Preparation method of 2,4-ditertbutyl-5-aminophenol
- 申请号:CN201610394376.4 申请日:2016-06-06
- 公开(公告)号:CN105884628A 公开(公告)日:2016-08-24
- 发明人: 江锣斌 , 茆勇军 , 朱春平 , 朱国庆 , 陈天昀 , 王晗
- 申请人: 上海工程技术大学
- 申请人地址: 上海市松江区龙腾路333号
- 专利权人: 上海工程技术大学
- 当前专利权人: 上海法默生物科技有限公司
- 当前专利权人地址: 上海市松江区龙腾路333号
- 代理机构: 上海唯智赢专利代理事务所
- 代理人: 吴瑾瑜
- 主分类号: C07C215/76
- IPC分类号: C07C215/76 ; C07C213/02
The invention relates to the technical field of organic synthesis and bulk pharmaceutical chemical intermediate preparation, in particular to a preparation method of cystic fibrosis treatment new drug ivacaftor key intermediate 2,4-ditertbutyl-5-aminophenol. The method comprises the steps of 1, acetylation, wherein (A) m-aminophenol or (B) acetic anhydride or acetyl chloride is used as a raw material, and a reaction is carried out to prepare N-(3-hydroxyphenyl)acetamide; 2, tertiary butyl substituting, wherein N-(3-hydroxyphenyl) acetamide and tert butyl alcohol are catalyzed by concentrated sulfuric acid to prepare N-(2,4-ditertbutyl-5-hydroxy phenyl)acetamide; 3, deacetylation, wherein the N-(2,4-ditertbutyl-5-hydroxy phenyl)acetamide is hydrolyzed by acid or alkali to obtain 2,4-ditertbutyl-5-aminophenol. According to the synthesis process, raw materials are easy to obtain, reaction conditions are mold, postprocessing is easy and convenient, amplified preparation is promoted, and the yield is high.
公开/授权文献:
- CN105884628B 2,4-二叔丁基-5-氨基酚的制备方法 公开/授权日:2018-06-29
IPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07C | 无环或碳环化合物 |
------C07C215/00 | 含连接在同一个碳架上的氨基和羟基的化合物 |
--------C07C215/02 | .与同一个碳架的非环碳原子连接的羟基和氨基 |
----------C07C215/76 | ..同一个非稠合六元芳环的 |