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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 422339Generated: October 30, 2026

1H-Indazole → HCID 57691801, compound

https://huagongshe.com/reaction/422339

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-IndazoleHCID 9221—
ReactantPotassium CarbonateHCID 11430—
Reactantsilane, (4-bromo-1-butynyl)trimethyl-HCID 642593—
ReactantHCID 66598009HCID 66598009—
SolventAcetoneHCID 180—
SolventWaterHCID 962—
ProductHCID 57691801HCID 5769180162%

Reaction Conditions

Temperature150 °C

Reaction Steps

A suspension of (4-bromo-but-1-ynyl)-trimethyl-silane (374 mg, 1.83 mmol), indazole (200 mg, 1.69 mmol) and K2CO3 (459 mg, 3.32 mmol) in acetone (2 mL) was heated at 150° C. for 900 s in a microwave. After the addition of water, acetone was evaporated. The aqueous phase was extracted with DCM. The organic phase was washed with brine, dried over MgSO4, filtered and evaporated to yield 250 mg (1.03 mmol, 62%) of 2-(4-trimethylsilanyl-but-3-ynyl)-2H-indazole and 1-(4 trimethylsilanyl-but-3-ynyl)-1H-indazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08101637B2
Source datasetuspto-grants-2012_01
ORD IDord-f73adc28431b4ae496c85ae69883937e
Source noteuspto-grants-2012_01