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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1973354Generated: November 3, 2026

Methane → HCID 21491342, compound

https://huagongshe.com/reaction/1973354

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
Reactant1-PyrrolidinepropanamineHCID 31670—
Reactant4-Chloro-2-(3,4-dichlorophenyl)quinazolineHCID 21491348—
SolventDimethylformamideHCID 6228—
ProductHCID 21491342HCID 21491342—

Reaction Steps

To a solution of 4-chloro-2-(3,4-dichlorophenyl)quinazoline (37.0 g., 0.12 mole) in dimethylformamide (400.0 ml) was added N-(3-aminopropyl) pyrrolidine (31.0 g., 0.24 mole). After stirring and heating the mixture for 4.0 hrs., the mixture was treated with charcoal and filtered. The solution was treated with H2O and then refrigerated. The cream colored powder removed by filtration was suspended in ethereal hydrochloric acid and treated with ethanol. After cooling, the off-white powder was removed by filtration and weighed 57.0 g., (100%). Two recrystallizations from ethanol + HCl/CH3OH + HCl/Charcoal (precipitated with ether) provided an analytical sample melting at 261°-263°. Anal. Calcd. for C21H22Cl2N4.2HCl: C, 53.18; H, 5.10; N, 11.81. Found: C, 52.96; H, 5.19; N, 11.67.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03997538
Source datasetuspto-grants-1976_12
ORD IDord-ac5b5594ca4044fda485ee52e37b4e4e
Source noteuspto-grants-1976_12