Potassium Carbonate → tert-butyl [(5-chloro-2-fluoro-4-{2-[3-nitro-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-4-yl]-4-(trifluoromethyl)phenoxy}phenyl)sulfonyl]1,3-thiazol-4-ylcarbamate

HRID 1692355Notes

Reaction equation

HRID 1692355 reaction equation
[N+:1]([C:4]1[C:8]([C:9]2[CH:14]=[C:13]([C:15]([F:18])([F:17])[F:16])[CH:12]=[CH:11][C:10]=2[OH:19])=[CH:7][N:6]([CH:20]2[CH2:25][CH2:24][CH2:23][CH2:22][O:21]2)[N:5]=1)([O-:3])=[O:2].C(=O)([O-])[O-].[K+].[K+].[Cl:32][C:33]1[C:34](F)=[CH:35][C:36]([F:55])=[C:37]([S:39]([N:42]([C:50]2[N:51]=[CH:52][S:53][CH:54]=2)[C:43](=[O:49])[O:44][C:45]([CH3:48])([CH3:47])[CH3:46])(=[O:41])=[O:40])[CH:38]=1>CS(C)=O.C(OCC)(=O)C.ClC1C(F)=CC(F)=C(S(N(C2N=CSC=2)C(=O)OC(C)(C)C)(=O)=O)C=1>[Cl:32][C:33]1[C:34]([O:19][C:10]2[CH:11]=[CH:12][C:13]([C:15]([F:17])([F:18])[F:16])=[CH:14][C:9]=2[C:8]2[C:4]([N+:1]([O-:3])=[O:2])=[N:5][N:6]([CH:20]3[CH2:25][CH2:24][CH2:23][CH2:22][O:21]3)[CH:7]=2)=[CH:35][C:36]([F:55])=[C:37]([S:39]([N:42]([C:50]2[N:51]=[CH:52][S:53][CH:54]=2)[C:43](=[O:49])[O:44][C:45]([CH3:48])([CH3:47])[CH3:46])(=[O:41])=[O:40])[CH:38]=1

Participants

7

Reactant 3

HCID 11430Potassium Carbonate2×HCID 59436581Tert-butyl (5-chloro-2,4-difluorophenyl)sulfonyl(thiazol-4-yl)carbamateHCID 669055812-[3-nitro-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-4-yl]-4-(trifluoromethyl)phenol

Product 1

HCID 66905740tert-butyl [(5-chloro-2-fluoro-4-{2-[3-nitro-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-4-yl]-4-(trifluoromethyl)phenoxy}phenyl)sulfonyl]1,3-thiazol-4-ylcarbamateYield 70%

Reagents, catalysts & solvents 3

HCID 59436581Tert-butyl (5-chloro-2,4-difluorophenyl)sulfonyl(thiazol-4-yl)carbamateCatalystHCID 679Dimethyl SulfoxideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
45 °C

Procedure

To a solution of 2-[3-nitro-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-4-yl]-4-(trifluoromethyl)phenol (Preparation 868, 28.73 g, 80.41 mmol) in dimethyl sulfoxide (175 mL) was added potassium carbonate (22.3 g, 161 mmol). After stirring for 10 minutes, tert-butyl [(5-chloro-2,4-difluorophenyl)sulfonyl]1,3-thiazol-4-ylcarbamate (Preparation 453, 33.02 g, 80.37 mmol) was added. After stirring for 14 hours at room temperature, additional potassium carbonate (4.7 g, 34 mmol) and tert-butyl [(5-chloro-2,4-difluorophenyl)sulfonyl]1,3-thiazol-4-ylcarbamate (1.25 g, 3.0 mmol) were added and the reaction mixture heated at 45° C. for 7 hours. The mixture was allowed to cool, diluted with ethyl acetate, and washed with water and brine. The organic layer was dried over anhydrous magnesium sulfate, filtered, and concentrated. Purification by manual flash column chromatography using 25% ethyl acetate/hexanes and an 8×46 cm column provided product as a yellow oil (40 g, 70%).

Workup

  1. stirringAfter stirring for 14 hours at room temperature
  2. temperatureto cool
  3. washwashed with water and brine
  4. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customPurification by manual flash column chromatography

Sources & evidence

ORD record
ord-621d3ffbf5de47c59a257e942ee6807c
Source dataset
uspto-grants-2012_04
Patent number
US08153814B2

Reaction notes

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