Methylamine → HCID 15908140, compound

HRID 1250680Notes

Reaction equation

HRID 1250680 reaction equation
[Cl:1][C:2]1[N:3]=[C:4](Cl)[C:5]2[S:10][CH:9]=[C:8]([CH2:11][CH2:12][CH3:13])[C:6]=2[N:7]=1.[CH3:15][NH2:16]>CN(C=O)C.CO>[Cl:1][C:2]1[N:3]=[C:4]([NH:16][CH3:15])[C:5]2[S:10][CH:9]=[C:8]([CH2:11][CH2:12][CH3:13])[C:6]=2[N:7]=1

Participants

5

Reactant 2

HCID 6329MethylamineHCID 18326430HCID 18326430, compound

Product 1

HCID 15908140HCID 15908140, compoundYield 51.5%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6228DimethylformamideSolvent

Procedure

To 10 ml of a solution of 100 mg (0.41 mmol) of 2,4-dichloro-7-propylthieno[3,2-d]pyrimidine in DMF was added 40% methylamine solution in methanol under ice cooling. The reaction mixture was stirred at the same temperature for one hour and then allowed to resume room temperature, followed by stirring for further 2 hours. After completion of the reaction, ice water was added to the reaction mixture, followed by extraction with ethyl acetate (50 ml×3). After the organic layer was washed successively with 1N hydrochloric acid, water and brine and dried over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified by silica gel chromatography (eluent: ethyl acetate-hexane=1/2) to give 50 mg (yield: 51.5%) of the title compound.

Workup

  1. customto resume room temperature
  2. stirringby stirring for further 2 hours
  3. additionwas added to the reaction mixture
  4. extractionfollowed by extraction with ethyl acetate (50 ml×3)
  5. washAfter the organic layer was washed successively with 1N hydrochloric acid, water and brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. distillationthe solvent was distilled off under reduced pressure
  8. customThe residue was purified by silica gel chromatography (eluent: ethyl acetate-hexane=1/2)

Sources & evidence

ORD record
ord-3cbde56202b34fadbf81bd28626487e5
Source dataset
uspto-grants-2002_01
Patent number
US06339089B2

Reaction notes

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