Water → 5-(3,5-dichloro-phenyl)-3-{4-(1-(2,2,2-trifluoro-ethyl)-1H-pyrazol-4-yl]-naphthalen-1-yl}-5-trifluoromethyl-4,5-dihydro-isoxazole

HRID 388372Notes

Reaction equation

HRID 388372 reaction equation
[H-].[Na+].[Cl:3][C:4]1[CH:5]=[C:6]([C:11]2([C:31]([F:34])([F:33])[F:32])[O:15][N:14]=[C:13]([C:16]3[C:25]4[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=4)[C:19]([C:26]4[CH:27]=[N:28][NH:29][CH:30]=4)=[CH:18][CH:17]=3)[CH2:12]2)[CH:7]=[C:8]([Cl:10])[CH:9]=1.I[CH2:36][C:37]([F:40])([F:39])[F:38].O>CN(C=O)C>[Cl:10][C:8]1[CH:7]=[C:6]([C:11]2([C:31]([F:32])([F:34])[F:33])[O:15][N:14]=[C:13]([C:16]3[C:25]4[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=4)[C:19]([C:26]4[CH:30]=[N:29][N:28]([CH2:36][C:37]([F:40])([F:39])[F:38])[CH:27]=4)=[CH:18][CH:17]=3)[CH2:12]2)[CH:5]=[C:4]([Cl:3])[CH:9]=1

Participants

6

Reactant 4

HCID 962WaterHCID 24758Sodium hydrideHCID 677091,1,1-Trifluoro-2-iodoethaneHCID 468423985-(3,5-dichloro-phenyl)-3-[4-(1H-pyrazol-4-yl)-naphthalen-1-yl]-5-trifluoromethyl-4,5-dihydro-isoxazole

Product 1

HCID 468423975-(3,5-dichloro-phenyl)-3-{4-(1-(2,2,2-trifluoro-ethyl)-1H-pyrazol-4-yl]-naphthalen-1-yl}-5-trifluoromethyl-4,5-dihydro-isoxazole

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Sodium hydride (2 mg) is added to a solution of 5-(3,5-dichloro-phenyl)-3-[4-(1H-pyrazol-4-yl)-naphthalen-1-yl]-5-trifluoromethyl-4,5-dihydro-isoxazole (3 mg, Example 2) in DMF (0.4 ml) at 0° C. After 1 hour at room temperature 2-iodo-1,1,1,-trifluoroethane (16 mg) is added and the reaction mixture is further stirred for 16 hours at room temperature. Water is added and the reaction mixture is extracted with ethyl acetate. The organic phase is washed with a saturated aqueous solution of NaCl, dried over MgSO4 and concentrated in vacuo. The crude product is purified on a semi-preparative HPLC to yield 5-(3,5-dichloro-phenyl)-3-{4-[1-(2,2,2-trifluoro-ethyl)-1H-pyrazol-4-yl]-naphthalen-1-yl}-5-trifluoromethyl-4,5-dihydro-isoxazole (compound 1.18, Table 1) as a colorless wax.

Workup

  1. extractionthe reaction mixture is extracted with ethyl acetate
  2. washThe organic phase is washed with a saturated aqueous solution of NaCl
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated in vacuo
  5. customThe crude product is purified on a semi-preparative HPLC

Sources & evidence

ORD record
ord-9900c5c8e4e44d4cb6ab0ec684fcf69c
Source dataset
uspto-grants-2013_02
Patent number
US08377942B2

Reaction notes

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