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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1925295Generated: October 28, 2026

5-Amino-2-naphthol → HCID 67519936, compound

https://huagongshe.com/reaction/1925295

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Amino-2-naphtholHCID 6865—
ReactantSodium hydrideHCID 24758—
Reactant4-Chloro-N-methylpicolinamideHCID 1476814—
SolventChloroformHCID 6212—
SolventDimethylformamideHCID 6228—
ProductHCID 67519936HCID 67519936—

Reaction Conditions

Temperature90 °C

Reaction Steps

To a solution of 5-amino-2-napthol (2.8 g, 17.6 mmol) in DMF (20 mL), NaH (60% in oil, 843 mg, 21.1 mmol) was added and stirred until the bubbling stopped. To the mixture 4-chloro-N-methylpicolinamide (Org. Proc. Res. & Dev., 2002, 6, 777-781) (1 g, 5.86 mmol) was added and the reaction heated to 90° C. for 22 h. The mixture was cooled to RT and diluted with CHCl3 and washed with water. The emulsion was filtered thru a pad of Celite and the layers separated. The water was washed with CHCl3 and the organic portions combined and washed with 1N NaOH and brine, dried with Na2SO4, filtered and evaporated. The residue was purified by column chromatography using hexanes and EtOAc as the eluent to give the title compound as a rose-colored solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178557B2
Source datasetuspto-grants-2012_05
ORD IDord-d857869fe72c4c72b26ea8c8276409d0
Source noteuspto-grants-2012_05