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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1968995Generated: October 27, 2026

Ammonia → 4-Hydroxy-3-nitrobenzamide

https://huagongshe.com/reaction/1968995

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHydrochloric AcidHCID 313—
ReactantBenzoic acid, 4-hydroxy-3-nitro-, methyl esterHCID 66835—
SolventWaterHCID 962—
Product4-Hydroxy-3-nitrobenzamideHCID 1184963253.1%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of methyl 4-hydroxy-3-nitrobenzoate (1.00 g, 5.07 mmol) and concentrated aq ammonia (10.0 mL, 162 mmol) was heated to 100° C. for 90 mins (3×30 mins) in a microwave reactor. The mixture was poured into water (70 mL), acidified with 6N HCl and extracted with EtOAc (4×25 mL). The combined extracts were dried (MgSO4) and concentrated in vacuo. The residue was triturated with DCM (20 mL) filtered and washed with DCM before drying under vacuum to afford the crude title compound as a yellow solid 0.49 g, 53.0%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08426443B2
Source datasetuspto-grants-2013_04
ORD IDord-a50830e326204d3ca6128b144d5f2201
Source noteuspto-grants-2013_04