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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 971881Generated: October 25, 2026

Methanol → Methyl 3-nitro-4-phenoxy-5-sulfamoylbenzoate

https://huagongshe.com/reaction/971881

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSulfuric AcidHCID 1118—
Reactant3-(Aminosulfonyl)-5-nitro-4-phenoxybenzoic acidHCID 119926—
ProductMethyl 3-nitro-4-phenoxy-5-sulfamoylbenzoateHCID 53854447—

Reaction Steps

34 g (~0.1 mol) of 3-nitro-4-phenoxy-5-sulphamylbenzoic acid are dissolved in 150 ml of methanol and are heated to the boil. 5.4 ml of concentrated H2SO4 are then added slowly dropwise and the mixture is heated at reflux temperature for 10 hours. On cooling, 3-nitro-4-phenoxy-5-sulphamylbenzoic acid methyl ester crystallises.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04161531
Source datasetuspto-grants-1979_07
ORD IDord-d5e34576efa8487c96c91fb407391c43
Source noteuspto-grants-1979_07