Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 4-Amino-N-methylbenzenemethanesulfonamide | HCID 2778131 | — |
| Reactant | Sodium Nitrite | HCID 23668193 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 118093608 | HCID 118093608 | 82.2% |
Reaction Steps
Add sulfuric acid (2.5 mL, 44.9 mmol) to a suspension of 1-(4-aminophenyl)-N-methyl-methanesulfonamide (7.5 g, 37.5 mmol) in water (56.2 mL) and chill the reaction mixture to 0° C. Slowly, drop wise add a solution of sodium nitrite (2.8 g; 41.2 mmol) in water (37.5 mL) to this slurry. Stir the resulting mixture at 0° C. for 20 m, then remove the ice bath and heat the reaction at 100° C. Cool the mixture to room temperature. Quench the reaction with an excess of water and extract with EtOAc. Combine the EtOAc extracts, wash the extracts with brine; dry over MgSO4; filter; and concentrate the filtrate under reduced pressure to yield the title compound as an orange solid (6.2 g, 66%). MS (m/z): 219 (M+H2O).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09073901B2 |
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| Source dataset | uspto-grants-2015_07 |
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| ORD ID | ord-d128f66d239a46f68d6c71ffade4e76c |
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| Source note | uspto-grants-2015_07 |
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