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Chemical Structure| 82649-18-1 Chemical Structure| 82649-18-1

Structure of 82649-18-1

Chemical Structure| 82649-18-1

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Product Details of [ 82649-18-1 ]

CAS No. :82649-18-1
Formula : C7H6N2O3S
M.W : 198.20
SMILES Code : O=C(C1=C2C=CC=C1N)NS2(=O)=O
MDL No. :MFCD20707101

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Application In Synthesis of [ 82649-18-1 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 82649-18-1 ]

[ 82649-18-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 171243-30-4 ]
  • [ 82649-18-1 ]
  • N-(1,1-dioxido-3-oxo-2,3-dihydrobenzo[d]isothiazol-4-yl)-3-fluoro-5-(trifluoromethyl)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
76.8% With pyridine; dmap; at 120℃; for 1h; Step 4: A round bottom flask was charged with 4-aminobenzo[d]isothiazol-3(2H)-one 1,1-dioxide (236 mg, 1.19 mmol), 4-dimethylaminopyridine (14.5 mg, 0.1 eq) and anhydrous pyridine (3 mL), followed by dropwise addition of 3-fluoro-5- (trifluoromethyl)benzoyl chloride (403 mg, 1.78 mmol). The mixture was stirred at ambient temperature for 1 hour. The reaction mixture was diluted with DCM (50 mL) and water (10 mL) and acidified to pH 1 with 1 M HCl (ca.30 mL). The DCM phase was separated out, and the aqueous phase was extracted with EtOAc (30 mL). The organic phases were combined, dried over sodium sulfate, and concentrated to dryness. The crude mixture was triturated with DCM (ca.8 mL) and filtered to afford N-(1,1-dioxido-3-oxo-2,3-dihydrobenzo[d]isothiazol- 4-yl)-3-fluoro-5-(trifluoromethyl)benzamide (355 mg, 0.9142 mmol, 76.8 %) as a tan solid.
76.8% With pyridine; dmap; at 120℃; for 1h; Step 4: A round bottom flask was charged with 4-aminobenzo[d]isothiazol-3(2H)-one 1,1-dioxide (236 mg, 1.19 mmol), 4-dimethylaminopyridine (14.5 mg, 0.1 eq) and anhydrous pyridine (3 mL), followed by dropwise addition of 3-fluoro-5- (trifluoromethyl)benzoyl chloride (403 mg, 1.78 mmol). The mixture was stirred at ambient temperature for 1 hour. The reaction mixture was diluted with DCM (50 mL) and water (10 mL) and acidified to pH 1 with 1 M HCl (ca.30 mL). The DCM phase was separated out, and the aqueous phase was extracted with EtOAc (30 mL). The organic phases were combined, dried over sodium sulfate, and concentrated to dryness. The crude mixture was triturated with DCM (ca.8 mL) and filtered to afford N-(1,1-dioxido-3-oxo-2,3-dihydrobenzo[d]isothiazol- 4-yl)-3-fluoro-5-(trifluoromethyl)benzamide (355 mg, 0.9142 mmol, 76.8 %) as a tan solid.
 

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