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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 447601Generated: October 26, 2026

1-Naphthoic acid → HCID 178478392, compound

https://huagongshe.com/reaction/447601

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Naphthoic acidHCID 6847—
ReactantPhosphorus oxychlorideHCID 24813—
Reactant4,5-Pyrimidinediamine, 6-chloro-HCID 78010—
ProductHCID 178478392HCID 17847839280.4%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 6-chloro-4,5-diaminopyrimidine (519 mg, 0.00359 mol) and 1-naphthalenecarboxylic acid (618 mg, 0.00359 mol) in phosphoryl chloride (2.0 mL, 0.021 mol) was heated at 110° C. under an atmosphere of nitrogen for 5.5 hours. The reaction was cooled and the residue was washed several times with ether. The residue was dissolved in CH2Cl2 and aqueous NaHCO3. The layers were separated and the aqueous was extracted with EtOAc (1×) and CH2Cl2 (1×). The combined organics were washed with saturated aqueous NaHCO3, brine, dried (Na2SO4), filtered, and collected in vacuo to obtain 810 mg (80%) of an orange solid. LC/MS: Rt=1.68 min, ES+ 261 (FA standard).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08481550B2
Source datasetuspto-grants-2013_07
ORD IDord-41a32a5df1bb4cad9563b4deb9aae78d
Source noteuspto-grants-2013_07