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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 487699Generated: October 29, 2026

Pyridine → HCID 54426938, compound

https://huagongshe.com/reaction/487699

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetyl chlorideHCID 6367—
ReactantHCID 19092742HCID 19092742—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
SolventSodium chloride; waterHCID 57417360—
ProductHCID 54426938HCID 5442693872.2%

Reaction Steps

To a cooled solution of 2-(5-methoxybenzofuran-2-yl)-4,5,6,7-tetrahydro-8H-thiazolo[5,4-b]azepine (1.3 g) and pyridine (0.65 ml) in N,N-dimethylformamide (20 ml), a solution of acetyl chloride (0.41 g) in dichloromethane (2 ml) was added dropwise below 10° C. After being stirred for 2 hours, the resulting mixture was poured into brine and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated under reduced pressure to give a syrup, which was crystallized from ethanol and collected by filtration to give 8-acetyl-2-(5-methoxybenzofuran-2-yl) 4,5,6,7-tetrahydro-8H-thiazolo[5,4-b]azepine (1.07 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05296495
Source datasetuspto-grants-1994_03
ORD IDord-ed436730221446aabca46381a1e0d334
Source noteuspto-grants-1994_03