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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1573Generated: October 23, 2026

5-(4-Chlorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile → 5-(4-Chlorophenyl)-2-hydroxypyridine

https://huagongshe.com/en/reaction/1573

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-(4-Chlorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrileHCID 2763910—
SolventPhosphoric AcidHCID 1004—
Product5-(4-Chlorophenyl)-2-hydroxypyridineHCID 1026237275.6%

Reaction Steps

A mixture of 3-cyano-5-(4-chlorophenyl)-2-pyridinone (4.6 g) and 85% H3PO4 (60 ml) was heated at reflux for 16 hours. The resulting mixture was cooled to room temperature, poured into ice/water and filtered yielding 3.1 g of 5-(4-chlorophenyl)-2-pyridinone as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05726176
Source datasetuspto-grants-1998_03
ORD IDord-1a4f37788b1a484282d9cf4c25552db7
Source noteuspto-grants-1998_03