Synthetic Route of 210532-25-5, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 210532-25-5, name is 3,5-Difluorobenzene-1-sulfonyl chloride, This compound has unique chemical properties. The synthetic route is as follows.
To a solution of 3,5-difluorobenzenesulfonyl chloride (25 g, 0.117 mol) in THF (150 mL) was added 35% aq. NH4OH (120 mL) over 1 h in an ice-bath. After the reaction was complete, it was evaporated in vacuo. To a solution of this residue in water (150 mL) was added 2N HC1 (1 mL). After stirring 1 h, the reaction mixture was filtered and dried under high vacuum to give 3,5-difluorobenzenesulfonamide as a light brown solid (19.9 g, 88%). 1H NMR (400MHz, CDC13) delta 7.49-7.44 (m, 2H), 7.04-6.99 (m, 2H).
The chemical industry reduces the impact on the environment during synthesis 3,5-Difluorobenzene-1-sulfonyl chloride. I believe this compound will play a more active role in future production and life.
Reference:
Patent; EXELIXIS, INC.; BOLLU, Venkataiah; BOREN, Brant, Clayton; DALGARD, Jackline; FLATT, Brenton, T.; HAQ, Nadia; HUDSON, Sarah; MOHAN, Raju; MORRISSEY, Michael; PRATT, Benjamin; WO2011/71565; (2011); A1;,
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