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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2422239Generated: October 30, 2026

Water → HCID 861848, compound

https://huagongshe.com/reaction/2422239

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPropionyl chlorideHCID 62324—
Reactant4,5-Dihydronaphtho[1,2-d][1,3]thiazol-2-amineHCID 700289—
SolventPyridineHCID 1049—
ProductHCID 861848HCID 86184891.5%

Reaction Steps

Under ice-cooling, to a solution of 4,5-dihydronaphtho[1,2-d][1,3]thiazol-2-amine (1.50 g, 7.4 mmol) in pyridine (20 mL) was added propionyl chloride (1.03 g, 11 mmol), and the mixture was stirred at room temperature for 2 hrs. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate=3:1) to give the title compound (1.75 g, yield 91%) as a powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07960369B2
Source datasetuspto-grants-2011_06
ORD IDord-2629ef9223184aec8c5340bab1a54660
Source noteuspto-grants-2011_06