1-Naphthoic acid → HCID 178478392, compound

HRID 447601

Reaction equation

HRID 447601 reaction equation
[Cl:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]([NH2:8])[C:3]=1[NH2:9].[C:10]1([C:20](O)=O)[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[CH:13]=[CH:12][CH:11]=1.P(Cl)(Cl)(Cl)=O>>[Cl:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[C:3]=1[N:9]=[C:20]([C:10]1[C:19]3[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=3)[CH:13]=[CH:12][CH:11]=1)[NH:8]2

Participants

4

Reactant 3

HCID 68471-Naphthoic acidHCID 24813Phosphorus oxychlorideHCID 780104,5-Pyrimidinediamine, 6-chloro-

Product 1

HCID 178478392HCID 178478392, compoundYield 80.4%

Conditions

Temperature
110 °C

Procedure

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).

Workup

  1. temperatureThe reaction was cooled
  2. washthe residue was washed several times with ether
  3. dissolutionThe residue was dissolved in CH2Cl2
  4. customThe layers were separated
  5. extractionthe aqueous was extracted with EtOAc (1×) and CH2Cl2 (1×)
  6. washThe combined organics were washed with saturated aqueous NaHCO3, brine
  7. dry with materialdried (Na2SO4)
  8. filtrationfiltered
  9. customcollected in vacuo

Sources & evidence

ORD record
ord-41a32a5df1bb4cad9563b4deb9aae78d
Source dataset
uspto-grants-2013_07
Patent number
US08481550B2

Linked notes

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