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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1064346Generated: October 30, 2026

Methylamine → 4-amino-N-methylbenzene-1-sulfonamide

https://huagongshe.com/reaction/1064346

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
Reactant4-Aminobenzenesulfonyl fluorideHCID 66823—
SolventEthanolHCID 702—
Product4-amino-N-methylbenzene-1-sulfonamideHCID 7436875%

Reaction Conditions

Temperature80 °C

Reaction Steps

4-Aminobenzenesulphonylfluoride (200 mg, 1.14 mmol) was dissolved in a solution of methylamine in EtOH (3 mL, excess) and heated to 80° C. for 45 minutes, then cooled to room temperature and left to stir overnight. The solvent was evaporated in vacuo and azeotroped with ether to yield the title compound as a solid (160 mg, 75%). NMR: 2.12 (s, 3H), 5.85 (s, 2H), 6.59 (d, 2H), 7.37 (d, 2H); m/z 187.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06969714B2
Source datasetuspto-grants-2005_11
ORD IDord-d834b28464d74433982306bbd643c04d
Source noteuspto-grants-2005_11