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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2423112Generated: November 1, 2026

1-{3,5-Difluoro-4-[(phenyl methyl)oxy]phenyl}-4-[(phenylmethyl)oxy]-1H-indazole → 1-(3,5-Difluoro-4-hydroxyphenyl)-1H-indazol-4-ol

https://huagongshe.com/reaction/2423112

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-{3,5-Difluoro-4-[(phenyl methyl)oxy]phenyl}-4-[(phenylmethyl)oxy]-1H-indazoleHCID 59272955—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
Product1-(3,5-Difluoro-4-hydroxyphenyl)-1H-indazol-4-olHCID 13591038382.8%

Reaction Steps

A solution of 1-{3,5-difluoro-4-[(phenylmethyl)oxy]phenyl}-4-[(phenylmethyl)oxy]-1H-indazole (D35) (257 mg, 0.58 mmol) in ethanol (10 mL) and ethyl acetate (10 mL) was hydrogenated in an H-cube over a 10% palladium on charcoal catalyst. The resulting solution was concentrated and then the crude product purified by silica gel chromatography eluting with 5-100% ethyl acetate in hexane to yield the title compound (E19) (126 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07960563B2
Source datasetuspto-grants-2011_06
ORD IDord-e63e08888c0d431ab41f7219684f3009
Source noteuspto-grants-2011_06