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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 334670Generated: October 31, 2026

2-Bromo-6-(fluoromethyl)pyridine → 4-fluoro-2-(4-(6-(fluoromethyl)pyridin-2-yl)but-3-ynyl)-2H-indazole

https://huagongshe.com/reaction/334670

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Bromo-6-(fluoromethyl)pyridineHCID 10241610—
Reactant2-but-3-ynyl-4-fluoro-2H-indazoleHCID 86086899—
Product4-fluoro-2-(4-(6-(fluoromethyl)pyridin-2-yl)but-3-ynyl)-2H-indazoleHCID 6659786136.4%

Reaction Steps

The title compound was prepared in accordance with the general method of Example 1, from 2-bromo-6-(fluoromethyl)-pyridine (0.12 g, 0.61 mmol) and 2-but-3-ynyl-4-fluoro-2H-indazole (104 mg, 0.55 mmol). Reaction time: 3 hours. The crude residue was purified by flash chromatography (cyclohexane/AcOEt 3:2) to yield 60 mg (0.20 mmol, 36%) of 4-fluoro-2-(4-(6-(fluoromethyl)pyridin-2-yl)but-3-ynyl)-2H-indazole as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883826B2
Source datasetuspto-grants-2014_11
ORD IDord-abf4c57693804253a3dfb92f41753660
Source noteuspto-grants-2014_11