Potassium Phosphate, Tribasic → HCID 67410738, compound

HRID 515228Notes

Reaction equation

HRID 515228 reaction equation
[F:1][C:2]1([F:27])[CH2:4][CH:3]1[CH2:5][N:6]1[C:10]2[CH:11]=[CH:12][C:13](B3OC(C)(C)C(C)(C)O3)=[CH:14][C:9]=2[N:8]([CH3:24])[S:7]1(=[O:26])=[O:25].Cl[C:29]1[N:34]=[C:33]([C:35]([O:37][CH2:38][CH3:39])=[O:36])[CH:32]=[CH:31][C:30]=1[CH3:40].P([O-])([O-])([O-])=O.[K+].[K+].[K+].COC1C=CC=C(OC)C=1C1C=CC=CC=1P(C1CCCCC1)C1CCCCC1>C1COCC1.O.CCOC(C)=O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[F:1][C:2]1([F:27])[CH2:4][CH:3]1[CH2:5][N:6]1[C:10]2[CH:11]=[CH:12][C:13]([C:29]3[N:34]=[C:33]([C:35]([O:37][CH2:38][CH3:39])=[O:36])[CH:32]=[CH:31][C:30]=3[CH3:40])=[CH:14][C:9]=2[N:8]([CH3:24])[S:7]1(=[O:25])=[O:26]

Participants

9

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 9837074Ethyl 6-chloro-5-methylpicolinateHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 67413064HCID 67413064, compound

Product 1

HCID 67410738HCID 67410738, compound

Reagents, catalysts & solvents 4

HCID 167845palladium(II) acetateCatalystHCID 962WaterSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
75 °C

Procedure

1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-dihydro-2,1,3-benzothiadiazole 2,2-dioxide (12-1) (100 mg, 0.25 mmol, 1 eq), ethyl 6-chloro-5-methylpyridine-2-carboxylate (26-4) (75 mg, 0.38 mmol, 1.5 eq), tripotassium phosphate (106 mg, 0.50 mmol, 2.0 eq), S-Phos (10 mg, 0.025 mmol, 0.1 eq), and palladium(II) acetate (2.8 mg, 0.012 mmol, 0.05 eq) were combined in THF (1 mL) and water (0.2 mL). The resulting mixture was heated at 75° C. for 14 hours. The reaction mixture was allowed to cool to room temperature. The mixture was then diluted with EtOAc (10 mL), washed with water (1 mL) and brine (1 mL), dried over MgSO4, filtered and concentrated. The crude residue was purified by flash chromatography (12 g SiO2, 0-80% EtOAc in hexanes) to afford ethyl 6-{1-[(2,2-difluorocyclopropyl)methyl]-3-methyl-2,2-dioxido-1,3-dihydro-2,1,3-benzothiadiazol-5-yl}-5-methylpyridine-2-carboxylate (26-5). HRMS m/z (M+H) 438.1291 found, 438.1294 required.

Workup

  1. temperatureto cool to room temperature
  2. washwashed with water (1 mL) and brine (1 mL)
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude residue was purified by flash chromatography (12 g SiO2, 0-80% EtOAc in hexanes)

Sources & evidence

ORD record
ord-b1cbd84b772342b88a999ab02934d2be
Source dataset
uspto-grants-2015_08
Patent number
US09108937B2

Reaction notes

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