Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1160451Generated: October 31, 2026

Water → Methyl 3-hydroxy-5-[methyl(methylsulfonyl)amino]benzoate

https://huagongshe.com/reaction/1160451

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl 3-amino-5-[methyl(methylsulfonyl)amino]benzoateHCID 21054739—
ReactantSodium NitriteHCID 23668193—
SolventHydrochloric AcidHCID 313—
SolventMethanolHCID 887—
ProductMethyl 3-hydroxy-5-[methyl(methylsulfonyl)amino]benzoateHCID 57815108100%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a mixture of methyl 3-amino-5-[methyl(methylsulfonyl)amino]benzoate 1.29 g (5.0 mmol) in 2N hydrochloric acid (10 mL) and methanol (15 mL) was added sodium nitrite 0.759 g (11 mmol) under ice-cooling. Thereto was further added water (20 mL) and the mixture was stirred at 70° C. for 2 hours. The mixture was extracted twice with ethyl acetate (30 mL) and dried on magnesium sulfate and the solvent was evaporated to give 1.33 g (5.0 mmol) of the title compound (yield: 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07816387B2
Source datasetuspto-grants-2010_10
ORD IDord-d2b6af4901574ca5b3d0617f283fec34
Source noteuspto-grants-2010_10