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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1196879Generated: October 31, 2026

Pyridine → HCID 19896745, compound

https://huagongshe.com/reaction/1196879

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantDimethylcarbamoyl ChlorideHCID 6598—
ReactantHCID 10222149HCID 10222149—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductAmmoniaHCID 222—
ProductHCID 19896745HCID 19896745148.7%

Reaction Steps

Dimethylcarbamyl chloride (66 mg) was added to a stirred solution of 1-[(3,4-dichlorophenyl)acetyl]-2-(1-pyrrolidinylmethyl)piperazine (200 mg), pyridine (53 mg) and 4-dimethylaminopyridine (5 mg) in dry dichloromethane at 0° for 4.5 h. The reaction mixture was washed with aqueous 2N sodium carbonate solution (2×10 ml), dried and evaporated to give an oil, which was purified by flash column chromatography eluting with dichloromethane:methanol:0.880 NH3 (200:8:1) to give the title compound as an oil (195 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05116842
Source datasetuspto-grants-1992_05
ORD IDord-9b0f5eb2012e467cb004b38429eddf70
Source noteuspto-grants-1992_05