Hydrochloric Acid → HCID 131732835, compound

HRID 924182Notes

Reaction equation

HRID 924182 reaction equation
[F:1][C:2]([F:30])([F:29])[O:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH:14]=[N:13][C:12]([C:15]3[CH:20]=[CH:19][C:18](/[C:21](/[CH3:28])=[CH:22]/[C:23]([O:25]CC)=[O:24])=[CH:17][CH:16]=3)=[N:11]2)=[CH:6][CH:5]=1.[OH-].[Na+].Cl>CO>[F:30][C:2]([F:1])([F:29])[O:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH:14]=[N:13][C:12]([C:15]3[CH:20]=[CH:19][C:18](/[C:21](/[CH3:28])=[CH:22]/[C:23]([OH:25])=[O:24])=[CH:17][CH:16]=3)=[N:11]2)=[CH:6][CH:5]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium Hydroxide2×HCID 90438203(E)-ethyl 3-(4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)phenyl)but-2-enoate

Product 1

HCID 131732835HCID 131732835, compoundYield 96.1%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To (E)-ethyl 3-(4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)phenyl)but-2-enoate (C26) (1.30 g, 3.10 mmol) in methanol (10 mL) was added sodium hydroxide (2 N, 12.3 mL, 24.6 mmol) and stirred at room temperature overnight. Additional sodium hydroxide (2 N) was added and the reaction was heated to 50° C. for 3 days. The reaction was acidified with hydrogen chloride (2 N) and the white precipitate was collected by vacuum filtration to afford the title compound as a white solid (1.16 g, 95%): mp 234-238° C.; 1H NMR (400 MHz, DMSO-d6) δ 12.32 (s, 1H), 9.43 (s, 1H), 8.14 (d, J=8.6 Hz, 2H), 8.09 (d, J=9.1 Hz, 2H), 7.73 (d, J=8.6 Hz, 2H), 7.68-7.53 (m, 2H), 6.22 (d, J=1.3 Hz, 1H), 2.54 (d, J=1.3 Hz, 3H); 19F NMR (376 MHz, DMSO-d6) δ −56.96; ESIMS m/z 390 ([M+H]+).

Workup

  1. temperaturethe reaction was heated to 50° C. for 3 days
  2. filtrationthe white precipitate was collected by vacuum filtration

Sources & evidence

ORD record
ord-8f30b6a717e74bb9b80cb22a7dd3f8b9
Source dataset
uspto-grants-2016_03
Patent number
US09278964B2

Reaction notes

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