Invention Grant
- Patent Title: Method for producing dicyanocyclohexane and bis(aminomethyl)cyclohexane
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Application No.: US16957210Application Date: 2018-12-26
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Publication No.: US11572338B2Publication Date: 2023-02-07
- Inventor: Emi Nakano , Noriyuki Shiomi , Akifumi Iida
- Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Applicant Address: JP Chiyoda-ku
- Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2017-252013 20171227
- International Application: PCT/JP2018/047809 WO 20181226
- International Announcement: WO2019/131746 WO 20190704
- Main IPC: C07C253/22
- IPC: C07C253/22 ; C07C255/46
Abstract:
The problem addressed by this invention is to achieve a useful and novel method for producing dicyanocyclohexane and bis(aminomethyl)cyclohexane. This problem was solved by providing a method for producing dicyanocyclohexane having a cyanation step in which dicyanocyclohexane is obtained by a cyanation reaction of cyanocyclohexane-1-carboxylic acid and/or a salt thereof with an ammonia source, and a method for producing bis(aminomethyl)cyclohexane using the dicyanocyclohexane thus produced.
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