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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1480837Generated: November 1, 2026

Sodium Carbonate → HCID 61025921, compound

https://huagongshe.com/reaction/1480837

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant4-Bromo-2-methylanilineHCID 11423—
Reactant1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 2773987—
CatalystHCID 178418397HCID 178418397—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
ProductHCID 61025921HCID 6102592121%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 4-bromo-2-methylaniline (500 mg, 2.69 mmol) in EtOH (10 mL), toluene (10 mL) and water (10 mL) was added 1-methylpyrazole-4-boronic acid pinacol ester (671 mg, 3.22 mmol), sodium carbonate (570 mg, 5.37 mmol) and Pd(PPh3)4 (373 mg, 0.322 mmol). The reaction mixture was heated to 80° C. for 2.5 hours. The reaction mixture was cooled to room temperature and diluted with EtOAc (30 mL), washed with water (30 mL) and brine (30 mL), dried (MgSO4) and concentrated in vacuo. The residue was purified by passage through a SCX-2 cartridge eluting with 100% MeOH—1M NH3 in MeOH. The residue was purified by silica gel column chromatography eluting with 0-10% MeOH in DCM to give the title compound (106 mg, 21%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09409907B2
Source datasetuspto-grants-2016_08
ORD IDord-7c4601b8392b4bc49023538e07b11b4b
Source noteuspto-grants-2016_08