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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2057981Generated: October 25, 2026

11-(Chloroacetyl)-5,11-dihydro-6H-pyrido(2,3-b)(1,4)benzodiazepin-6-one → 11-[(4-Allyl-1-piperazinyl)acetyl]-5,11-dihydro-6H-pyrido[2,3-b]-[1,4]benzodiazepin-6-one

https://huagongshe.com/reaction/2057981

Reaction equation

Participants

RoleNameHCIDCharge
Reactant11-(Chloroacetyl)-5,11-dihydro-6H-pyrido(2,3-b)(1,4)benzodiazepin-6-oneHCID 120053—
Reactant1-AllylpiperazineHCID 806422—
SolventEthanolHCID 702—
Product11-[(4-Allyl-1-piperazinyl)acetyl]-5,11-dihydro-6H-pyrido[2,3-b]-[1,4]benzodiazepin-6-oneHCID 20329368—

Reaction Steps

8.62 gm of 11-chloroacetyl-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and 8.3 gm of 1-allyl-piperazine were refluxed in 100 ml of ethanol for 2 hours. The reaction mixture was then evaporated, and the crystalline precipitate was subsequently recrystallized from 30 ml of isopropanol and then from 94% ethanol in the presence of activated charcoal.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04213984
Source datasetuspto-grants-1980_07
ORD IDord-926f375263f74647bb980e399e5da0fd
Source noteuspto-grants-1980_07