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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 429451Generated: October 29, 2026

Pyridinium chloride → HCID 9952162, compound

https://huagongshe.com/reaction/429451

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
ReactantHCID 69931470HCID 69931470—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 9952162HCID 9952162—

Reaction Conditions

Temperature152.5 °C

Reaction Steps

A mixture of (±)-cis-4-(4-hexylphenyl)-7-methoxy-3-phenylchromane (0.46 g, 1.15 mmol) and anhydrous pyridine hydrochloride (6.60 g, 57.4 mmol) was heated to 150-155° C. as a melt for 18 hours. The mixture was cooled to room temperature, and the resulting orange coloured wax dissolved in a mixture of water (100 ml), hot ethanol (10 ml) and dichloromethane (100 ml). The organic layer was separated and the aqueous layer further extracted with dichloromethane (3×50 ml). The combined organic layers were washed with saturated sodium chloride, dried over sodium sulfate and evaporated to a dark coloured oil, which was purified by column chromatography on silica gel 60, with 2% methanol in dichloromethane as eluent; giving the title compound as a red oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06316494B1
Source datasetuspto-grants-2001_11
ORD IDord-d6e7928c17564e369c01b80338da1a73
Source noteuspto-grants-2001_11