Invention Grant
- Patent Title: Aromatic diamine, an intermediate therefor, a method for producing the aromatic diamine, and a method for producing the intermediate therefor
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Application No.: US15562162Application Date: 2016-03-29
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Publication No.: US09957241B2Publication Date: 2018-05-01
- Inventor: Motonori Takeda , Masahiro Kasamatsu , Akihiro Tamaki , Seiichi Mori , Mitsutaka Imoto , Yoshihisa Takeda
- Applicant: SEIKA CORPORATION
- Applicant Address: JP Wakayama
- Assignee: SEIKA CORPORATION
- Current Assignee: SEIKA CORPORATION
- Current Assignee Address: JP Wakayama
- Agency: Oliff PLC
- Priority: JP2015-073538 20150331; JP2015-106275 20150526
- International Application: PCT/JP2016/060030 WO 20160329
- International Announcement: WO2016/158907 WO 20161006
- Main IPC: C07D277/66
- IPC: C07D277/66 ; C07D263/57
Abstract:
A novel asymmetric diamine, diamino-2-(benzothiazole-2-yl)diphenyl ether, derivatives therefor, and an intermediate for the compound such as aminonitro-2-(benzothiazole-2-yl)diphenyl ether, dinitro-2-(benzothiazole-2-yl)diphenyl ether, and derivatives from these. Additionally, another novel asymmetric diamine, diamino-2-(benzoxazole-2-yl)diphenyl ether, derivatives therefor, and intermediate for the compound such as aminonitro-2-(benzoxazole-2-yl)diphenyl ether, dinitro-2-(benzoxazole-2-yl)diphenyl ether, and derivatives from these, and methods for preparing them.
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