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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 706718Generated: October 31, 2026

N-bromobutanimide → 1-benzyl-5-bromo-1H-indazol-4-amine

https://huagongshe.com/reaction/706718

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-bromobutanimideHCID 67184—
Reactant1-benzyl-1H-indazol-4-amineHCID 21327317—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product1-benzyl-5-bromo-1H-indazol-4-amineHCID 679763224.2%

Reaction Steps

A solution of 1-benzyl-1H-indazol-4-amine (0.087 g, 0.39 mmol) in DMF (2 mL) was treated with N-bromosuccinimide (0.069 g, 0.39 mmol) at ambient temperature and stirred for 4 hours. The mixture was diluted with water, extracted with EtOAc, dried (phase separator silicone treated filter paper), concentrated and purified on silica gel (10-50% EtOAc in hexanes) to provide 1-benzyl-5-bromo-1H-indazol-4-amine (0.005 g, 4% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09174981B2
Source datasetuspto-grants-2015_11
ORD IDord-8a0b7533f23e4dcb810b320dca724f2b
Source noteuspto-grants-2015_11