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PHASE-TRANSFER CATALYSED FORMATION OF N-(SUBSTITUTED PHENYL) SULFONAMIDES IN WATER
PHASE-TRANSFER CATALYSED FORMATION OF N-(SUBSTITUTED PHENYL) SULFONAMIDES IN WATER
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机译:水中N-(取代苯甲酰)亚磺酰胺的相转移催化形成
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摘要
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.
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