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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2109385Generated: October 30, 2026

Methyl 3-cyano-4-methoxybenzoate → 3-Cyano-4-hydroxybenzoic acid

https://huagongshe.com/reaction/2109385

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 3-cyano-4-methoxybenzoateHCID 2801011—
ReactantPyridinium chlorideHCID 10176127—
Product3-Cyano-4-hydroxybenzoic acidHCID 1113746380.5%

Reaction Conditions

Temperature180 °C

Reaction Steps

A mixture of methyl 3-cyano-4-methoxybenzoate (70 g) and pyridine hydrochloride (128.3 g) was stirred for 1 hour at 180° C. in an oil bath. Ice-water (1 L) was added to the reaction mixture, and the thus-precipitated crystals were filtered and recrystallized from ethyl acetate, thereby giving 48.1 g of the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07514452B2
Source datasetuspto-grants-2009_04
ORD IDord-297cf8eef7004665a24d50ded460c15a
Source noteuspto-grants-2009_04