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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1847218Generated: November 1, 2026

Potassium Carbonate → HCID 136343985, compound

https://huagongshe.com/reaction/1847218

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 numberUS08952160B2
Source datasetuspto-grants-2015_02
ORD IDord-0d26ebe81f0f4778b1c60f0415bc7300
Source noteuspto-grants-2015_02