Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79371Generated: October 25, 2026

Potassium Carbonate → HCID 67261255, compound

https://huagongshe.com/reaction/79371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant3-(chloromethyl)-1,5-dimethyl-1H-pyrazole hydrochlorideHCID 66937557—
ReactantHCID 178526562HCID 178526562—
SolventDimethylformamideHCID 6228—
ProductHCID 67261255HCID 6726125575.9%

Reaction Steps

To 3-(chloromethyl)-1,5-dimethyl-1H-pyrazole hydrochloride (5.01 g, 27.7 mmol) in DMF (50 mL) was added 3-iodo-4-nitro-1H-indazole (8.00 g, 27.7 mmol) and K2CO3 (15.3 g, 111 mmol). The reaction mixture was stirred for 20 hours. The mixture was concentrated under reduced pressure to remove most of the DMF. The residue was diluted with DCM (100 mL) and washed with H2O. The organic phase was dried (Na2SO4) and concentrated under reduced pressure. The residue was purified by silica gel chromatography (EtOAc/Hexane 1:3) to provide the product (8.35 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841455B2
Source datasetuspto-grants-2014_09
ORD IDord-ba84414bbc5a4f3185805b3965961618
Source noteuspto-grants-2014_09