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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 844024Generated: October 30, 2026

Pyridinium chloride → 1-(3-Chloro-5-hydroxyphenyl)ethanone

https://huagongshe.com/reaction/844024

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
Reactant3'-Chloro-5'-methoxyacetophenoneHCID 13493854—
SolventWaterHCID 962—
Product1-(3-Chloro-5-hydroxyphenyl)ethanoneHCID 2261222448.4%

Reaction Conditions

Temperature220 °C

Reaction Steps

A mixture of 1-(3-chloro-5-methoxy-phenyl)-ethanone (14.3 g, 0.08 mol.) and pyridine hydrochloride (44.8 g, 0.39 mol.) was heated at 220° C. for 2 hrs. The mixture was poured into water (200 mL) and extracted with ethyl acetate (2×200 mL). The organic extracts were combined, washed with water (40 mL), brine (40 mL) and concentrated to give an oil. Flash Chromatography on Silica Get eluting with ethyl acetate/hexanes (1:1) gave 6.6 g solid. MS (m/e): 170/172 (M+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06380218B1
Source datasetuspto-grants-2002_04
ORD IDord-8030c4362c1f454eb5725cd3a6d76016
Source noteuspto-grants-2002_04