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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1050745Generated: November 1, 2026

Potassium Carbonate → HCID 136343985, compound

https://huagongshe.com/reaction/1050745

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-Fluorophenylboronic acidHCID 285645—
ReactantHCID 136344015HCID 136344015—
CatalystHCID 178418397HCID 178418397—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 136343985HCID 13634398550.3%

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of 7-bromo-4-hydroxy-3-phenyl-isothiazolo[5,4-c]pyridine-5-carboxylic acid ethyl ester (53 mg, 0.139 mmol), Pd(PPh3)4 (16.1 mg, 0.0139 mmol), 4-fluorophenylboronic acid (29.3 mg, 0.209 mmol), K2CO3 (57.8 mg, 0.418 mmol), and 1,4-dioxane (1.39 mL) was heated at 140° C. in a microwave oven with stirring for 5 min. After cooling to r. t., the mixture was filtered and the filter cake was washed with CH2Cl2. The filtrate was concentrated in vacuo and the residue was purified by flash column chromatography on silica gel. Elution with 0-20% EtOAc/CH2Cl2, gave the title compound as a white solid (27.6 mg): MS (m/z) 395.2 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09387200B2
Source datasetuspto-grants-2016_07
ORD IDord-9c6d997457214a6e8c74f1fc08e32482
Source noteuspto-grants-2016_07