Ethyl Acetate → 2-Methylsulfanyl-6-(3-trifluoromethylphenyl)-pyrimidin-4-ylamine

HRID 2053084Notes

Reaction equation

HRID 2053084 reaction equation
[NH2:1][C:2]1[CH:7]=[C:6](Cl)[N:5]=[C:4]([S:9][CH3:10])[N:3]=1.[F:11][C:12]([F:23])([F:22])[C:13]1[CH:14]=[C:15](B(O)O)[CH:16]=[CH:17][CH:18]=1.C(=O)([O-])[O-].[K+].[K+].C(OCC)(=O)C>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:10][S:9][C:4]1[N:3]=[C:2]([NH2:1])[CH:7]=[C:6]([C:17]2[CH:16]=[CH:15][CH:14]=[C:13]([C:12]([F:23])([F:22])[F:11])[CH:18]=2)[N:5]=1

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 704964-Amino-6-chloro-2-methylthiopyrimidineHCID 27343883-(Trifluoromethyl)phenylboronic acid

Product 1

HCID 585132282-Methylsulfanyl-6-(3-trifluoromethylphenyl)-pyrimidin-4-ylamineYield 60.7%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

To a stirred solution of 4-amino-6-chloro-2-methylthiopyrimidine (3.5 g) in toluene (45 mL) under a nitrogen atmosphere was added, sequentially, 3-(trifluoromethyl)phenylboronic acid (4.15 g), potassium carbonate (25 mL, 2M) and tetrakis(triphenylphosphine)palladium(0) (1.16 g). The mixture was heated to reflux for ten hours. Ethyl acetate (150 mL) was added and the mixture washed with water (2×100 mL). Organic layer was separated, washed with saturated sodium chloride (100 mL), dried over sodium sulphate and solvent was evaporated under reduced pressure to yield crude product. Purification by flash chromatography yielded product 2-methylsulfanyl-6-(3-trifluoromethyl-phenyl)-pyrimidin-4-ylamine (3.45 g)

Workup

  1. temperatureThe mixture was heated
  2. temperatureto reflux for ten hours
  3. washthe mixture washed with water (2×100 mL)
  4. customOrganic layer was separated
  5. washwashed with saturated sodium chloride (100 mL)
  6. dry with materialdried over sodium sulphate and solvent
  7. customwas evaporated under reduced pressure
  8. customto yield crude product
  9. customPurification by flash chromatography

Sources & evidence

ORD record
ord-a34b067471a64c818b8713335d50002e
Source dataset
uspto-grants-2008_02
Patent number
US07326715B2

Reaction notes

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