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2-Fluorobenzoyl chloride → N-(4-Chloro-3-(5-oxo-1-(4-(trifluoromethyl)phenyl)-4,5-dihydro-1H-1,2,4-triazol-3-yl)benzyl)-2-fluorobenzamide

HRID 59511
Notes
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Reaction equation

HRID 59511 reaction equation
[NH2:1][CH2:2][C:3]1[CH:4]=[CH:5][C:6]([Cl:25])=[C:7]([C:9]2[NH:13][C:12](=[O:14])[N:11]([C:15]3[CH:20]=[CH:19][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:17][CH:16]=3)[N:10]=2)[CH:8]=1.CCN(C(C)C)C(C)C.[F:35][C:36]1[CH:44]=[CH:43][CH:42]=[CH:41][C:37]=1[C:38](Cl)=[O:39]>C1COCC1>[Cl:25][C:6]1[CH:5]=[CH:4][C:3]([CH2:2][NH:1][C:38](=[O:39])[C:37]2[CH:41]=[CH:42][CH:43]=[CH:44][C:36]=2[F:35])=[CH:8][C:7]=1[C:9]1[NH:13][C:12](=[O:14])[N:11]([C:15]2[CH:16]=[CH:17][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:19][CH:20]=2)[N:10]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 98082-Fluorobenzoyl chlorideHCID 81531DiisopropylethylamineHCID 1364923713-(5-(aminomethyl)-2-chlorophenyl)-1-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazol-5(4H)-one

Product 1

HCID 136246061N-(4-Chloro-3-(5-oxo-1-(4-(trifluoromethyl)phenyl)-4,5-dihydro-1H-1,2,4-triazol-3-yl)benzyl)-2-fluorobenzamideYield 37.7%

Reagents, catalysts & solvents 1

HCID 8028
Tetrahydrofuran
Solvent

Conditions

Temperature
0 °C

Procedure

To a solution of 3-(5-(aminomethyl)-2-chlorophenyl)-1-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazol-5(4H)-one (Intermediate-63, 0.060 g, 0.162 mmol) in dry THF (5 mL) was added DIPEA (3 mL) and stirred for 20 minutes. The reaction mixture was cooled to 0° C. and 2-flurobenzoyl chloride (0.038 g, 0.243 mmol) was added and stirred for 3 h at room temperature. The reaction mass was quenched in water, extracted with DCM:MeOH and concentrated to afford crude product which was purified by column chromatography eluting with MeOH:DCM to afford 0.030 g of pure product. 1H NMR (400 MHz, DMSO d6): δ 4.50-4.52 (d, J=8 Hz, 2H), 7.25-7.33 (m, 2H), 7.52-7.55 (m, 2H), 7.63-7.65 (m, 2H), 7.72-7.86 (d, J=2.4 Hz, 1H), 7.83-7.86 (d, J=11.6 Hz, 2H), 8.17-8.20 (d, J=11.6 Hz, 2H), 8.95-8.99 (t, 1H), 12.69 (br s, 1H); MS (m/z): 491.17 (M+H+).

Workup

  1. stirringstirred for 3 h at room temperature
  2. customThe reaction mass was quenched in water
  3. extractionextracted with DCM
  4. concentrationMeOH and concentrated
  5. customto afford crude product which
  6. customwas purified by column chromatography
  7. washeluting with MeOH

Sources & evidence

ORD record
ord-ce01e0f93a654e77a7110ab948209696
Source dataset
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09439890B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes