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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 491751Generated: November 2, 2026

Pyridinium chloride → HCID 135545348, compound

https://huagongshe.com/reaction/491751

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
ReactantHCID 21907383HCID 21907383—
SolventWaterHCID 962—
ProductHCID 135545348HCID 13554534841.6%

Reaction Steps

Pyridine hydrochloride (400 mg) was heated to 190° C. To the melt was added 2-[5-methoxy-2-(4-methoxyphenyl)-1,3-benzoxazole-7-yl]propan-2-ol (114 mg, 0.36 mmol) and the reaction was stirred for 2 h. The mixture was cooled to room temperature, dissolved in water and extracted with EtOAc. The organic layers were combined and washed with HCl (1N), water then brine and dried over MgSO4. Evaporation and purification by flash chromatography (50%-60% EtOAc/petroleum ether) gave (40 mg, 41% yield) of the product as a light red-brown solid, m.p. 225-228° C.; MS m/e 268 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07531564B2
Source datasetuspto-grants-2009_05
ORD IDord-ea781db06cb645b082da00eca114f883
Source noteuspto-grants-2009_05