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Chemical Structure| 252562-03-1 Chemical Structure| 252562-03-1

Structure of 252562-03-1

Chemical Structure| 252562-03-1

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Product Details of [ 252562-03-1 ]

CAS No. :252562-03-1
Formula : C9H12N2O3S
M.W : 228.27
SMILES Code : CC(NC1=CC=C(S(=O)(N)=O)C=C1C)=O
MDL No. :MFCD00453327

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Application In Synthesis of [ 252562-03-1 ]

* 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 [ 252562-03-1 ]

[ 252562-03-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 252562-03-1 ]
  • [ 53297-70-4 ]
YieldReaction ConditionsOperation in experiment
100% With hydrogenchloride; In ethanol; water; at 80℃; A mixture of N-(2-methyl-4-sulfamoylphenyl)acetamide (5.1 g, 22.3 mmol), HCl (2 N, 76.5 ml) and EtOH (100 ml) was refluxed overnight. Then the mixture was neutralized with Na2CO3 (aq) to pH = 8. The mixture was extracted with EA (80 mL x 4), dried over Na2SO4, and concentrated to obtain 4-amino-3-methylbenzenesulfonamide as a pale solid (4.9 g, yield 100%).
100% With hydrogenchloride; water; In ethanol;Reflux; Compound 27-6 (0455) A mixture of 27-5 (5.1 g, 22.3 mmol), HCl (2 N, 76.5 ml) and EtOH (100 ml) was refluxed overnight. Then the mixture was neutralized with Na2CO3(aq) to PH=8. The mixture was extracted with EA (80 ml×4), dried over Na2SO4, and concentrated to give 27-6 as a pale solid (4.9 g, yield 100%).
93% A round-bottom flask was equipped with a stir bar, a reflux condenser and nitrogen on demand. Into the flask were placed sulfonamide 465 (8.4 g, 36.80 mmol), ethyl alcohol (200 mL) and 2N hydrochloric acid (128 mL). The resulting mixture was allowed to heat to reflux overnight, after which time it was allowed to cool to RT and was neutralized with saturated, aqueous sodium bicarbonate. It was then poured into a separatory funnel containing water and ethyl acetate, the organic layer was collected, washed with water, brine, dried over MgSO4, filtered and the solvents were removed under reduced pressure to afford a tan solid (6.35 g, 93%), which was used without further purification. 1H NMR (DMSO-d6, 400 MHz) delta 2.06 (s, 3H), 5.54 (s, 2H), 6.58 (d, J= 12 Hz, 1H), 6.82 (s, 2H), 7.30 (d, J= 12 Hz, 1H), 7.33 (s, 1H).
 

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