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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2188304Generated: October 26, 2026

Benzyl Bromide → 1-Benzyl-3-cyanoindazole

https://huagongshe.com/reaction/2188304

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
ReactantSodium hydrideHCID 24758—
Reactant1H-Indazole-3-carbonitrileHCID 437556—
SolventTetrahydrofuranHCID 8028—
Product1-Benzyl-3-cyanoindazoleHCID 1584035579.6%

Reaction Steps

420 mg of NaH (60% in oil, 10.3 mmol) were added in portions to 1.0 g of 3-cyanoindazole (7.0 mmol) and 1.7 ml of benzyl bromide (14.0 mmol) in 6 ml of THF, and the mixture was stirred at room temperature for 15 hours. The reaction was quenched with 2 drops of water, the mixture was concentrated and the residue was chromatographed (SiO2; petroleum ether:ethyl acetate 3:1). 1.3 g of a solid were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06410740B1
Source datasetuspto-grants-2002_06
ORD IDord-a0e988eaa112489a813815b691463177
Source noteuspto-grants-2002_06