Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 497964Generated: October 29, 2026

4-Chloro-3-methyl-1-(2-pyridinyl)-1H-pyrazolo[3,4-b]quinoline → HCID 22320332, compound

https://huagongshe.com/reaction/497964

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-3-methyl-1-(2-pyridinyl)-1H-pyrazolo[3,4-b]quinolineHCID 22320109—
ReactantDimethylamine tetrahydrofuranHCID 22320367—
SolventWaterHCID 962—
ProductHCID 22320332HCID 2232033297.2%

Reaction Conditions

Temperature100 °C

Reaction Steps

4-Chloro-3-methyl-1-(2-pyridinyl)-1H-pyrazolo[3,4-b]quinoline (1.00 g, 3.39 mmol) was added to a 2M dimethylamine tetrahydrofuran (5.00 mL, 10.0 mmol) solution, and the mixture was heated at 100° C. overnight in a sealed tube. The reaction mixture was cooled to room temperature and poured into water, and organic matter was extracted with ethyl acetate. The extract was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue thus obtained was purified by silica gel column chromatography (ethyl acetate to ethyl acetate:methanol=9:1) to give the title compound (1.00 g, 97% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949648B2
Source datasetuspto-grants-2005_09
ORD IDord-d9ddb6e1e5fa45debe62beb1c0d15864
Source noteuspto-grants-2005_09