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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2350855Generated: October 31, 2026

1,1-Dimethylhydrazine → 10-(dimethylamino)-2,10-dihydroimidazo[2,1-b]quinazolin-5(3H)-one

https://huagongshe.com/reaction/2350855

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1-DimethylhydrazineHCID 5976—
Reactant1-(2-Fluorobenzoyl)-2-methylthio-2-imidazolineHCID 3236905—
SolventWaterHCID 962—
SolventDiglymeHCID 8150—
Product10-(dimethylamino)-2,10-dihydroimidazo[2,1-b]quinazolin-5(3H)-oneHCID 1438712077%

Reaction Steps

A solution of 2.40 g (10.1 mmoles) of the product of Example 1 and 3 ml of 1,1-dimethylhydrazine in 6 ml of diglyme was heated at 165° C. for 3 hours in a sealed glass tube. Upon cooling, the solution was diluted with water and the resulting solid was collected and air-dried to give 1.80 g of 2,10-dihydro-10-(dimethylamino)imidazo[2,1-b]quinazolin-5(3H)-one. Melting point 197°-198° C. Total yield 77%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04871732
Source datasetuspto-grants-1989_10
ORD IDord-3050f37c7df845b0845d71a935234d8d
Source noteuspto-grants-1989_10