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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 578652Generated: October 30, 2026

Methanol → N-ethyl-4-nitrobenzenesulfonamide

https://huagongshe.com/reaction/578652

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthylamineHCID 6341—
Reactant4-Nitrobenzenesulfonyl chlorideHCID 7404—
SolventWaterHCID 962—
ProductN-ethyl-4-nitrobenzenesulfonamideHCID 23262179%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a 40-mL vial with magnetic stir bar at 25° C. was added the Ethylamine solution (0.91 g, 20 mmol, 1.3 mL, 70% w/v in water, 4.5 eq.) and methanol (5 mL). The reaction vial was cooled to 0° C. The Nosyl chloride (1.0 g, 4.5 mmol, 1 eq.) was added portion-wise keeping the temperature between 0-5° C. and stirring continued ×15 min. after addition was complete. Water (10 mL) was then added. A precipitate began to form immediately. Stirring was continued at 0° C.×30 minutes. The material was collected by filtration, rinsed with water, and dried thoroughly in vacuo to afford 827 mg (79% yield). LCMS (ESI) 231 (M+H); 229 (M−H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040560B2
Source datasetuspto-grants-2015_05
ORD IDord-827336aac49f4e109fb652162b669f93
Source noteuspto-grants-2015_05