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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 63026Generated: October 23, 2026

2-Naphthoic acid → 2-Naphthalen-2-yl-benzooxazol-5-yl-amine

https://huagongshe.com/en/reaction/63026

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Naphthoic acidHCID 7123—
Reactant2,4-Diaminophenol hydrochlorideHCID 8715—
ReactantSodium HydroxideHCID 14798—
Product2-Naphthalen-2-yl-benzooxazol-5-yl-amineHCID 73601275%

Reaction Conditions

Temperature180 °C

Reaction Steps

80 μmol of 2,4-diaminophenol.2HCl and 80 μmol of naphthalene-2-carboxylic acid were dissolved in 100 mg of PPA, and then, the mixed solution was stirred at a temperature of 180° C. for 3 to 4 hours. After completion of the reaction, the reaction solution was cooled, neutralized with 10% NaOH, and filtered by using distilled water for recrystallization in a slow manner, thereby obtaining 15.6 mg of 2-(naphthalene-2-yl)benzo[d]oxazole-5-amine (Derivative #3) (yield: 75%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447054B2
Source datasetuspto-grants-2016_09
ORD IDord-bf87e7cb139f4e8ea7b4af588f1a563f
Source noteuspto-grants-2016_09