Invention Grant
![Method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate](/docs/US/2021-02-02/US10906893B2/abs.jpg.600x600.jpg)
- Patent Title: Method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate
-
Application No.: US16486516Application Date: 2018-02-15
-
Publication No.: US10906893B2Publication Date: 2021-02-02
- Inventor: Sergii Pazenok , Christian Funke , Friedrich August Muehlthau , Mark James Ford , Arnd Neeff , Klaus-Ulrich Schiffer
- Applicant: Bayer CropScience Aktiengesellschaft , Bayer Aktiengesellschaft
- Applicant Address: DE Monheim am Rhein; DE Leverkusen
- Assignee: Bayer CropScience Aktiengesellschaft,Bayer Aktiengesellschaft
- Current Assignee: Bayer CropScience Aktiengesellschaft,Bayer Aktiengesellschaft
- Current Assignee Address: DE Monheim am Rhein; DE Leverkusen
- Agency: McBee Moore & Vanik IP, LLC
- Priority: EP17157615 20170223
- International Application: PCT/EP2018/053771 WO 20180215
- International Announcement: WO2018/153767 WO 20180830
- Main IPC: C07D409/12
- IPC: C07D409/12
![Method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate](/abs-image/US/2021/02/02/US10906893B2/abs.jpg.150x150.jpg)
Abstract:
The invention relates to a method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate from 4-methoxycarbonyl-2-methylthiophene-3-sulfonyl chloride in the presence of an imidazole base substituted in the 1-position or in the presence of a mixture of bases comprising an imidazole base substituted in the 1-position (N-alkylimidazole).
Public/Granted literature
Information query
