Invention Grant
US09440932B2 Phase-transfer catalysed formation of N-(substituted phenyl) sulfonamides in water
有权
N-（取代苯基）磺酰胺在水中的相转移催化形成
- Patent Title: Phase-transfer catalysed formation of N-(substituted phenyl) sulfonamides in water
- Patent Title (中): N-（取代苯基）磺酰胺在水中的相转移催化形成
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Application No.: US14338357Application Date: 2014-07-23
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Publication No.: US09440932B2Publication Date: 2016-09-13
- Inventor: Bomi P Framroze
- Applicant: Bomi P Framroze
- Agency: Altimatia, LLC
- Agent David M. Gange
- Main IPC: C07D249/12
- IPC: C07D249/12
Abstract:
A new process for making agrochemically important N-[2,4-dichloro-5-[4-(difluoro methyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl] phenyl]methanesulfonamide by reacting 1-(5-amino-2,4-dichlorophenyl)-4,5-dihydro-4-difluoromethyl-3-methyl-1,2,4-triazol-5(1H)-one and methanesulfonyl chloride in water using an inorganic base to dynamically control the reaction pH and in the presence of a phase transfer catalyst suspended in an 1:1 aromatic solution.
Public/Granted literature
- US20160024028A1 PHASE-TRANSFER CATALYSED FORMATION OF N-(SUBSTITUTED PHENYL) SULFONAMIDES IN WATER Public/Granted day:2016-01-28
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