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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1786689Generated: October 30, 2026

Acetyl chloride → 4-(3-acetyl-1H-indol-2-yl)-6-pyridin-4-yl-2H-pyridazin-3-one

https://huagongshe.com/reaction/1786689

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetyl chlorideHCID 6367—
Reactant2-(3-Methoxy-6-pyridin-4-yl-pyridazin-4-yl)-1H-indole trifluoroacetateHCID 23092453—
ReactantAluminium chloride 1,2-dichloroethaneHCID 86612051—
Product4-(3-acetyl-1H-indol-2-yl)-6-pyridin-4-yl-2H-pyridazin-3-oneHCID 13548949348.1%

Reaction Steps

4 mg acetyl chloride are added at 0° C. to a suspension of 80 mg aluminum chloride 1,2-Dichloroethane, followed by 208 mg 2-(3-Methoxy-6-pyridin-4-yl-pyridazin-4-yl)-1H-indole Trifluoroacetate. The reaction mixture is stirred for 4 h at room temperature and for 3h at 50° C. It is worked up pouring into an ice/water mixture and filtration. The layers are separated, the organic is layer washed with water, dried over MgSO4 and the solvent removed. Reverse phase HPLC chromatography yielded 8.1 mg 4-(3-Acetyl-1H-indol-2-yl)-6-pyridin-4-yl-2H-pyridazin-3-one

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07507734B2
Source datasetuspto-grants-2009_03
ORD IDord-24a8127de3a04e3592f183c34bbe44e8
Source noteuspto-grants-2009_03