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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 334673Generated: October 26, 2026

4-Fluoro-2-nitrobenzaldehyde → 6-fluoro-2-(4-trimethylsilanyl-but-3-ynyl)-2H-indazole

https://huagongshe.com/reaction/334673

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Fluoro-2-nitrobenzaldehydeHCID 76226—
Reactant(4-Aminobut-1-yn-1-yl)trimethylsilaneHCID 19703099—
Product6-fluoro-2-(4-trimethylsilanyl-but-3-ynyl)-2H-indazoleHCID 66597905100%

Reaction Steps

The title compound was prepared in accordance with the general method of Example 149(A), from 4-fluoro-2-nitro-benzaldehyde (180 mg, 1.06 mmol) and 4-trimethylsilanyl-but-3-ynylamine (200 mg, 1.40 mmol). The crude product was purified by flash chromatography (cyclohexane/AcOEt 4:1) to yield 6-fluoro-2-(4-trimethylsilanyl-but-3-ynyl)-2H-indazole (310 mg, 1.06 mmol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883826B2
Source datasetuspto-grants-2014_11
ORD IDord-f6ea74b351a4457d838c70304d1e858d
Source noteuspto-grants-2014_11