Diisopropylethylamine → 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

HRID 63867Notes

Reaction equation

HRID 63867 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2([C:31]([F:34])([F:33])[F:32])[O:16][N:15]=[C:14]([C:17]3[CH:25]=[CH:24][C:20]([C:21](O)=[O:22])=[C:19]([CH2:26][C:27]([F:30])([F:29])[F:28])[CH:18]=3)[CH2:13]2)[CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:7]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.Cl.[NH:69]1[CH2:73][C:72](=[O:74])[NH:71][CH2:70]1>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2([C:31]([F:34])([F:32])[F:33])[O:16][N:15]=[C:14]([C:17]3[CH:25]=[CH:24][C:20]([C:21]([N:69]4[CH2:73][C:72](=[O:74])[NH:71][CH2:70]4)=[O:22])=[C:19]([CH2:26][C:27]([F:28])([F:30])[F:29])[CH:18]=3)[CH2:13]2)[CH:5]=[C:6]([C:8]([F:9])([F:11])[F:10])[CH:7]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 56965782Imidazolidin-4-one hydrochlorideHCID 1180466734-[5-[3-Chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)benzoic acid

Product 1

HCID 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

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Into a 25-mL round-bottom flask, was placed 4-[5-[3-chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(2,2,2-trifluoroethyl)benzoic acid (200 mg, 0.38 mmol, 1.00 equiv), N,N-dimethylformamide (10 mL), HATU (292 mg, 0.77 mmol, 2.00 equiv), DIEA (99 mg, 0.77 mmol, 1.94 equiv), imidazolidin-4-one hydrochloride (94 mg, 0.77 mmol, 1.98 equiv). The resulting solution was stirred for 2 h at r t. The reaction was then quenched by the addition of 10 mL of water. The resulting solution was extracted with 2×10 mL of ethyl acetate and the organic layers combined. The resulting mixture was washed with 3×20 mL of brine. The resulting mixture was concentrated under vacuum. The residue was applied onto a TLC plate with ethyl acetate/petroleum ether (2:1). This resulted in 150 mg (60%) 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]imidazolidin-4-one as yellow oil.

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 2×10 mL of ethyl acetate
  4. washThe resulting mixture was washed with 3×20 mL of brine
  5. concentrationThe resulting mixture was concentrated under vacuum
  6. customThis resulted in 150 mg (60%) 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]imidazolidin-4-one as yellow oil

Sources & evidence

ORD record
ord-36e54c404d4e4363933bd6d705acdfff
Source dataset
uspto-grants-2016_09
Patent number
US09447084B2

Reaction notes

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