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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1763381Generated: November 1, 2026

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

https://huagongshe.com/reaction/1763381

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 numberUS04111953
Source datasetuspto-grants-1978_09
ORD IDord-7daf1b8c5c2c4ef7a0c7d924767b14ec
Source noteuspto-grants-1978_09