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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 990983Generated: October 30, 2026

m-Chloroperbenzoic acid → HCID 178526246, compound

https://huagongshe.com/reaction/990983

Reaction equation

Participants

RoleNameHCIDCharge
Reactantm-Chloroperbenzoic acidHCID 70297—
Reactant4,5-Dihydro-3-(pyridin-4-yl)-2H-benz(g)indazoleHCID 104337—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178526246HCID 178526246—

Reaction Conditions

Temperature57.5 °C

Reaction Steps

3-(4-Pyridyl)-4,5-dihydro-1H-benzo[g]indazole (100 mg, compound commercially available from Aldrich) was dissolved in tetrahydrofuran (5-10 ml) with warming and then 3-chloroperoxybenzoic acid (1.25 molar equivalents of 70-75% pure material) was added. The mixture was heated at 55-60° C. for 4 hours. A precipitate was collected by filtration, washed with tetrahydrofuran and then ether to give 4-(4,5-dihydro-1H-benzo[g]indazol-3-yl)pyridine 1-oxide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06462036B1
Source datasetuspto-grants-2002_10
ORD IDord-a720b48443fa4edc827702afcf682895
Source noteuspto-grants-2002_10