Invention Grant
- Patent Title: Method for producing 2-halogenated benzoic acids
-
Application No.: US15564902Application Date: 2016-04-11
-
Publication No.: US10364206B2Publication Date: 2019-07-30
- Inventor: Katsumi Takano , Takeshi Fujiwara , Hiroyuki Shiraishi , Nami Matsuo
- Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD. , ZERIA PHARMACEUTICAL CO., LTD.
- Applicant Address: JP Kako-gun JP Tokyo
- Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.,ZERIA PHARMACEUTICAL CO., LTD.
- Current Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.,ZERIA PHARMACEUTICAL CO., LTD.
- Current Assignee Address: JP Kako-gun JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2015-081727 20150413
- International Application: PCT/JP2016/061720 WO 20160411
- International Announcement: WO2016/167225 WO 20161020
- Main IPC: C07C51/363
- IPC: C07C51/363 ; C07C39/00 ; C07C65/21 ; C07B39/00 ; C07C51/42

Abstract:
The purpose of the present invention is to provide a method for producing 2-halogenated benzoic acids, the method imparting high regioselectivity (high selectivity) and having a shorter reaction time than does the conventional reaction. This method for producing 2-halogenated benzoic acids, in order to achieve the above purpose, is characterized in that benzoic acids and a halogenating agent are reacted in the presence of an alkaline compound, making it possible to highly selectively obtain 2-halogenated benzoic acids.
Public/Granted literature
- US20180086687A1 METHOD FOR PRODUCING 2-HALOGENATED BENZOIC ACIDS Public/Granted day:2018-03-29
Information query