3-(Trifluoromethyl)aniline → 4-(3-(2-Chloro-6-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-N-(3-(trifluoromethyl)phenyl)benzamide

HRID 59446Notes

Reaction equation

HRID 59446 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[NH:13][C:12](=[O:14])[N:11]([C:15]2[CH:24]=[CH:23][C:18]([C:19](OC)=[O:20])=[CH:17][CH:16]=2)[N:10]=1.[F:25][C:26]([F:35])([F:34])[C:27]1[CH:28]=[C:29]([CH:31]=[CH:32][CH:33]=1)[NH2:30].C[Al](C)C>C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[NH:13][C:12](=[O:14])[N:11]([C:15]2[CH:16]=[CH:17][C:18]([C:19]([NH:30][C:29]3[CH:31]=[CH:32][CH:33]=[C:27]([C:26]([F:25])([F:34])[F:35])[CH:28]=3)=[O:20])=[CH:23][CH:24]=2)[N:10]=1

Participants

5

Reactant 3

HCID 73753-(Trifluoromethyl)anilineHCID 16682925TrimethylaluminumHCID 136492391methyl 4-[3-(2-chloro-6-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]benzoate

Product 1

HCID 1364923614-(3-(2-Chloro-6-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-N-(3-(trifluoromethyl)phenyl)benzamideYield 30%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

To a solution of methyl 4-[3-(2-chloro-6-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl]benzoate (step-2 of Intermediate-9, 0.100 g, 0.28 mmol) in dry toluene was added 3-trifloromethyl aniline (0.070 g, 0.43 mmol) followed by addition of trimethyl aluminium (2M solution in toluene) (0.5 mL). The reaction mixture was refluxed for 1 h. The reaction mass was quenched in water and acidified with dilute HCl and extracted in DCM. The organic layer was dried over anhydrous sodium sulphate and concentrated to afford crude product, which was column purified to afford 0.040 g of desired product. 1H NMR (DMSO-d6): δ 7.45-7.54 (m, 2H), 7.59 (m, 2H), 7.72 (q, J=6.3 Hz, 1H), 8.05-8.12 (m, 5H), 8.25 (s, 1H), 10.58 (br s, 1H), 12.77 (br s, 1H); MS (m/z): 477.08 [M+H]+.

Workup

  1. temperatureThe reaction mixture was refluxed for 1 h
  2. customThe reaction mass was quenched in water
  3. extractionextracted in DCM
  4. dry with materialThe organic layer was dried over anhydrous sodium sulphate
  5. concentrationconcentrated
  6. customto afford crude product, which
  7. custompurified

Sources & evidence

ORD record
ord-ebf74843b3a24fb4af2f0d566485cca5
Source dataset
uspto-grants-2016_09
Patent number
US09439890B2

Reaction notes

Loading…