Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2283704Generated: October 30, 2026

Ammonia → HCID 90308962, compound

https://huagongshe.com/reaction/2283704

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantN-methyl-2-pyrrolidoneHCID 13387—
ReactantHCID 90308719HCID 90308719—
CatalystCopper iodideHCID 83717—
SolventEthyl AcetateHCID 8857—
ProductHCID 90308962HCID 90308962—

Reaction Conditions

Temperature100 °C

Reaction Steps

Copper oxide (I) (50 mg), NMP (2.5 mL), and concentrated aqueous ammonia (2.5 mL) were added to 5-bromo-7-methyl-2-(1-methylcyclobutyl)-2H-indazole obtained in the above-described Step 1 (536 mg), and the reaction solution was stirred in a microwave reactor at 100° C. for 5 hours. The reaction solution was cooled to room temperature, diluted with ethyl acetate, and then washed successively with water three times and then with a saturated saline solution. After drying over anhydrous sodium sulfate, the solvent was evaporated under vacuum, and the resultant was purified by column chromatography on silica gel (developing solvent:hexane/ethyl acetate) to obtain 7-methyl-2-(1-methylcyclobutyl)-2H-indazol-5-amine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09145414B2
Source datasetuspto-grants-2015_09
ORD IDord-3e871b44b7f14e93bf0debd39a077958
Source noteuspto-grants-2015_09