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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1602748Generated: November 2, 2026

Pyridinium chloride → HCID 69962873, compound

https://huagongshe.com/reaction/1602748

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
ReactantHCID 70294113HCID 70294113—
ProductHCID 69962873HCID 69962873—

Reaction Steps

Thus (±)-cis-7-methoxy-3-(4-methylphenyl)-4-(4-(2-pyrrolidinoethoxy)phenyl)-chromane was de-methylated by heating with pyridine hydrochloride to give the racemic mixture, (±)-cis-7-hydroxy-3-(4-methylphenyl)-4-(4-(2-pyrrolidinoethoxy)-phenyl)chromane. The title compound was then separated from this racemic mixture by means of preparative chiral HPLC {Chiradex 5 μm, 250×25 mm column; flow=20 ml/min; 50% methanol, 50% buffer (0.2% aqueous triethylammonium acetate, pH 3.5) eluent, 220 nm UV detection}. The title compound was the more rapidly eluted enantiomer, Rt=10-18 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05985306
Source datasetuspto-grants-1999_11
ORD IDord-93c7611e45ed4e8db9210908d12ee764
Source noteuspto-grants-1999_11