Dimethylformamide → 1-[(4-[5-[3-Chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)phenyl)carbonyl]-3-(3,3,3-trifluoropropyl)imidazolidin-4-one

HRID 63868Notes

Reaction equation

HRID 63868 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2([C:36]([F:39])([F:38])[F:37])[O:16][N:15]=[C:14]([C:17]3[CH:22]=[CH:21][C:20]([C:23]([N:25]4[CH2:29][C:28](=[O:30])[NH:27][CH2:26]4)=[O:24])=[C:19]([CH2:31][C:32]([F:35])([F:34])[F:33])[CH:18]=3)[CH2:13]2)[CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:7]=1.CN(C)C=O.[F:45][C:46]([F:51])([F:50])[CH2:47][CH2:48]I.C([O-])([O-])=O.[Cs+].[Cs+]>CC#N>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2([C:36]([F:37])([F:38])[F:39])[O:16][N:15]=[C:14]([C:17]3[CH:22]=[CH:21][C:20]([C:23]([N:25]4[CH2:29][C:28](=[O:30])[N:27]([CH2:48][CH2:47][C:46]([F:51])([F:50])[F:45])[CH2:26]4)=[O:24])=[C:19]([CH2:31][C:32]([F:33])([F:35])[F:34])[CH:18]=3)[CH2:13]2)[CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:7]=1

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 10796Cesium carbonateHCID 1561651,1,1-Trifluoro-3-iodopropaneHCID 1180468191-[(4-[5-[3-Chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)phenyl)carbonyl]imidazolidin-4-one

Product 1

HCID 1180466521-[(4-[5-[3-Chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)phenyl)carbonyl]-3-(3,3,3-trifluoropropyl)imidazolidin-4-one

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
50 °C

Procedure

Into a 25-mL round-bottom flask, was placed 1-[(4-[5-[3-chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)phenyl)carbonyl]imidazolidin-4-one (150 mg, 0.26 mmol, 1.00 equiv), N,N-dimethylformamide (10 mL), 1,1,1-trifluoro-3-iodopropane (114 mg, 0.51 mmol, 2.01 equiv), Cs2CO3 (166 mg, 0.51 mmol, 1.98 equiv). The resulting solution was stirred overnight at 50° C. The reaction was then quenched by the addition of 10 mL of water. The resulting solution was extracted with 3×10 mL of ethyl acetate and the organic layers combined. The resulting mixture was washed with 3×10 mL of brine. The resulting mixture was concentrated under vacuum. The residue was applied onto a TLCplate with ethyl acetate/petroleum ether (1:1). This resulted in 22.3 mg (12%) of 1-[(4-[5-[3-chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)phenyl)carbonyl]-3-(3,3,3-trifluoropropyl)imidazolidin-4-one as a light yellow solid. (ES, m/z): [M+CH3CN]− 726.0; 1H NMR (300 MHz, CDCl3): δ7.86-7.98 (m, 5H), 7.63 (d, J=8.1 Hz, 1H), 5.14 (s, 1H), 4.78 (s, 1H), 4.15-4.42 (m, 3H), 3.57-3.92 (m, 5H), 2.40-2.66 (m, 2H).

Workup

  1. customInto a 25-mL round-bottom flask, was placed
  2. customThe reaction was then quenched by the addition of 10 mL of water
  3. extractionThe resulting solution was extracted with 3×10 mL of ethyl acetate
  4. washThe resulting mixture was washed with 3×10 mL of brine
  5. concentrationThe resulting mixture was concentrated under vacuum
  6. customThis resulted in 22.3 mg (12%) of 1-[(4-[5-[3-chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)phenyl)carbonyl]-3-(3,3,3-trifluoropropyl)imidazolidin-4-one as a light yellow solid

Sources & evidence

ORD record
ord-727bafe3fb784f35afb32a65382c3974
Source dataset
uspto-grants-2016_09
Patent number
US09447084B2

Reaction notes

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