Potassium Carbonate → HCID 71576986, compound

HRID 1630340Notes

Reaction equation

HRID 1630340 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]2[N:14]=[C:13]([NH:15][CH3:16])[C:12]([C:17]([F:20])([F:19])[F:18])=[CH:11][N:10]=2)=[C:4]([O:21][CH3:22])[CH:3]=1.C([O-])([O-])=O.[K+].[K+].[CH3:29][N:30]1[CH:34]=[C:33](B2OC(C)(C)C(C)(C)O2)[CH:32]=[N:31]1>O1CCOCC1.O.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>[CH3:22][O:21][C:4]1[CH:3]=[C:2]([C:33]2[CH:32]=[N:31][N:30]([CH3:29])[CH:34]=2)[CH:7]=[CH:6][C:5]=1[NH:8][C:9]1[N:14]=[C:13]([NH:15][CH3:16])[C:12]([C:17]([F:20])([F:19])[F:18])=[CH:11][N:10]=1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 86688208HCID 86688208, compound

Product 1

HCID 71576986HCID 71576986, compoundYield 25%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

A mixture of N2-(4-bromo-2-methoxyphenyl)-N4-methyl-5-(trifluoromethyl)pyrimidine-2,4-diamine (0.365 g, 1 mmol), Pd(PPh3)4 (115 mg, 0.1 mmol), K2CO3 (0.415 g, 3 mmol) and 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (0.415 g, 2 mmol) in dioxane (10 mL) and water (1.25 mL) was degassed under a stream of nitrogen for 10 min. The reaction tube was sealed and the mixture irradiated in the microwave at 100° C. for 20 min. The mixture was cooled and concentrated under reduced pressure. The residue was partitioned between ethyl acetate (20 mL) and water (20 mL) and the product extracted into ethyl acetate (2×20 mL). The combined organics were passed through a phase separation cartridge and the solvent removed under reduced pressure. Purification of the residue via silica gel column chromatography (0-100% ethyl acetate/isohexane) afforded a residue that was triturated with diethyl ether yielding N2-(2-methoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl)-N4-methyl-5-(trifluoromethyl)pyrimidine-2,4-diamine as an off-white solid (94 mg, 25%). LCMS (10 cm_ESCI_Formic_MeCN): [MH+]=379 at 3.11 min. 1H NMR (400 MHz, CDCl): δ 8.49 (d, J=8.4, 1H); 8.17 (s, 1H); 7.76-7.68 (m, 2H); 7.58 (s, 1H); 7.10 (dd, J=8.4, 1.9, 1H); 6.98 (d, J=1.9, 1H); 5.20 (s, 1H); 3.95 (s, 6H); 3.12 (d, J=4.7, 3H).

Workup

  1. customwas degassed under a stream of nitrogen for 10 min
  2. customThe reaction tube was sealed
  3. customthe mixture irradiated in the microwave at 100° C. for 20 min
  4. temperatureThe mixture was cooled
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was partitioned between ethyl acetate (20 mL) and water (20 mL)
  7. extractionthe product extracted into ethyl acetate (2×20 mL)
  8. customThe combined organics were passed through a phase separation cartridge
  9. customthe solvent removed under reduced pressure
  10. customPurification of the residue via silica gel column chromatography (0-100% ethyl acetate/isohexane)
  11. customafforded a residue that
  12. customwas triturated with diethyl ether

Sources & evidence

ORD record
ord-918e573972be4b2bac98c5951c1beb53
Source dataset
uspto-grants-2014_07
Patent number
US08791130B2

Reaction notes

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