Sodium Carbonate → Ethyl 5-(trifluoromethyl)-1-(6-{2-[(4-{(E)-2-[4-(trifluoromethyl)phenyl]vinyl}benzyl)oxy]phenyl}pyridin-2-yl)-1H-pyrazole-4-carboxylate

HRID 1255165Notes

Reaction equation

HRID 1255165 reaction equation
Br[C:2]1[CH:35]=[CH:34][C:5]([CH2:6][O:7][C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[C:14]2[N:19]=[C:18]([N:20]3[C:24]([C:25]([F:28])([F:27])[F:26])=[C:23]([C:29]([O:31][CH2:32][CH3:33])=[O:30])[CH:22]=[N:21]3)[CH:17]=[CH:16][CH:15]=2)=[CH:4][CH:3]=1.[F:36][C:37]([F:50])([F:49])[C:38]1[CH:43]=[CH:42][C:41]([CH:44]=[CH:45]B(O)O)=[CH:40][CH:39]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(#N)C>[F:26][C:25]([F:28])([F:27])[C:24]1[N:20]([C:18]2[CH:17]=[CH:16][CH:15]=[C:14]([C:9]3[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=3[O:7][CH2:6][C:5]3[CH:34]=[CH:35][C:2](/[CH:45]=[CH:44]/[C:41]4[CH:40]=[CH:39][C:38]([C:37]([F:36])([F:49])[F:50])=[CH:43][CH:42]=4)=[CH:3][CH:4]=3)[N:19]=2)[N:21]=[CH:22][C:23]=1[C:29]([O:31][CH2:32][CH3:33])=[O:30]

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 4573116(4-(Trifluoromethyl)styryl)boronic acidHCID 67159752Ethyl 1-(6-{2-[(4-bromobenzyl)oxy]phenyl}pyridin-2-yl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate

Product 1

HCID 86633490Ethyl 5-(trifluoromethyl)-1-(6-{2-[(4-{(E)-2-[4-(trifluoromethyl)phenyl]vinyl}benzyl)oxy]phenyl}pyridin-2-yl)-1H-pyrazole-4-carboxylate

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a vial containing the title compound from Example 2 Step A (50.0 mg, 0.092 mmol) were added 2-(4-trifluoromethylphenyl)vinyl boronic acid (29.6 mg, 0.137 mmol) and trans-dichlorobis(triphenylphosphine) palladium (II) (6.4 mg, 0.009 mmol). Acetonitrile (0.400 mL) and sodium carbonate (0.229 mL, 1.0 M aqueous, 0.229 mmol) were added, and the resulting mixture was degassed via nitrogen sparge. The reaction vial was capped and placed in a pre-heated oil bath (70° C.). After 18 h, the reaction mixture was allowed to cool to ambient temperature and was poured into water. The mixture was extracted with DCM, and the organic phase was concentrated in vacuo. Purification by chromatography on silica gel (0 to 30% EtOAc in hexanes, then 30 to 100% EtOAc in hexanes) provided the title compound: LCMS m/z 638.4 [M+H]+; 1H NMR (500 MHz, CDCl3) δ 8.16 (d, J=8.0 Hz, 1H), 8.13 (s, 1H), 7.97 (d, J=7.5 Hz, 1H), 7.88 (t, J=7.5 Hz, 1H), 7.61 (br s, 4H), 7.54 (d, J=8.0 Hz, 1H), 7.52 (d, J=8.5 Hz, 2H), 7.41-7.39 (m, 1H), 7.37 (d, J=7.5 Hz, 1H), 7.21-7.06 (m, 4H), 5.18 (s, 2H), 4.38 (q, J=7.0 Hz, 2H), 1.39 (t, J=7.0 Hz, 3H).

Workup

  1. customthe resulting mixture was degassed via nitrogen
  2. customsparge
  3. customThe reaction vial was capped
  4. customplaced in a pre-heated oil bath
  5. custom(70° C.)
  6. additionwas poured into water
  7. extractionThe mixture was extracted with DCM
  8. concentrationthe organic phase was concentrated in vacuo
  9. customPurification by chromatography on silica gel (0 to 30% EtOAc in hexanes

Sources & evidence

ORD record
ord-0ca67ef807f64216b7fd49d8799cbab2
Source dataset
uspto-grants-2013_06
Patent number
US08455638B2

Reaction notes

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