Cesium carbonate → (1Z)-1-[3-(5-methyl-2-propan-2-ylphenyl)-4-oxo-1,3-thiazinan-2-ylidene]-3-[2-[4-[1-[4-(trifluoromethoxy)phenyl]-1,2,4-triazol-3-yl]phenyl]ethyl]urea

HRID 924297Notes

Reaction equation

HRID 924297 reaction equation
[N:1]([CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]=[CH:15][N:14]([C:17]3[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:26])[F:25])=[CH:19][CH:18]=3)[N:13]=2)=[CH:8][CH:7]=1)=[C:2]=[O:3].[CH:28]([C:31]1[CH:36]=[CH:35][C:34]([CH3:37])=[CH:33][C:32]=1[NH:38][C:39]([NH2:41])=[S:40])([CH3:30])[CH3:29].C(=O)([O-])[O-].[Cs+].[Cs+].[C:48](Cl)(=[O:51])[CH:49]=[CH2:50]>C(#N)C.C(OCC)(=O)C>[CH:28]([C:31]1[CH:36]=[CH:35][C:34]([CH3:37])=[CH:33][C:32]=1[N:38]1[C:48](=[O:51])[CH2:49][CH2:50][S:40]/[C:39]/1=[N:41]\[C:2]([NH:1][CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]=[CH:15][N:14]([C:17]3[CH:22]=[CH:21][C:20]([O:23][C:24]([F:26])([F:25])[F:27])=[CH:19][CH:18]=3)[N:13]=2)=[CH:8][CH:7]=1)=[O:3])([CH3:30])[CH3:29]

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 13140Acryloyl chlorideHCID 893731681-(2-Isopropyl-5-methylphenyl)thioureaHCID 904044083-(4-(2-Isocyanatoethyl)phenyl)-1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazole

Product 1

HCID 90413005(1Z)-1-[3-(5-methyl-2-propan-2-ylphenyl)-4-oxo-1,3-thiazinan-2-ylidene]-3-[2-[4-[1-[4-(trifluoromethoxy)phenyl]-1,2,4-triazol-3-yl]phenyl]ethyl]ureaYield 44%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
40 °C

Procedure

3-(4-(2-Isocyanatoethyl)phenyl)-1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazole (C34a) (0.18 g, 0.47 mmol), 1-(2-isopropyl-5-methylphenyl)thiourea (0.10 g, 0.50 mmol), and cesium carbonate (0.21 g, 0.63 mmol) in acetonitrile (2.3 mL) were stirred at room temperature overnight. The reaction was diluted with ethyl acetate and washed with water. The organic layers were dried over sodium sulfate, filtered, and concentrated. The crude material was dissolved in butanone (2.3 mL) followed by addition of acryloyl chloride (0.045 mL, 0.55 mmol). The reaction was heated at 40° C. for 4 hours. The reaction was cooled and concentrated. Purification by flash column chromatography using 0-100% ethyl acetate/B, where B=1:1 dichloromethane/hexanes, as eluent followed by drying in a vacuum oven provided the title compound as a yellow oil (0.13 g, 44%).

Workup

  1. washwashed with water
  2. dry with materialThe organic layers were dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. dissolutionThe crude material was dissolved in butanone (2.3 mL)
  6. temperatureThe reaction was cooled
  7. concentrationconcentrated
  8. customPurification by flash column chromatography
  9. customby drying in a vacuum oven

Sources & evidence

ORD record
ord-37bc00dd629e4c6b81702d5d2904773f
Source dataset
uspto-grants-2016_03
Patent number
US09278964B2

Reaction notes

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