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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 652880Generated: October 25, 2026

Pyridinium chloride → 2,3-Dichloro-4-hydroxy-4'-fluorobenzophenone

https://huagongshe.com/reaction/652880

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
Reactant2,3-Dichloro-4-methoxy-4'-fluorobenzophenoneHCID 20150631—
Product2,3-Dichloro-4-hydroxy-4'-fluorobenzophenoneHCID 13015707—

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture of 39.5 g of 2,3-dichloro-4-methoxy-4'-fluorobenzophenone and 160 g of pyridine hydrochloride is heated at 200° C. for one hour. The reaction mixture is poured into ice water with stirring and a precipitate forms. The precipitate is filtered and dried for about 18 hours to yield 2,3-dichloro-4-hydroxy-4'-fluorobenzophenone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04673746
Source datasetuspto-grants-1987_06
ORD IDord-6befd78396e1408d834f837ba11e8b56
Source noteuspto-grants-1987_06