Pyridine → HCID 66881883, compound

HRID 884955Notes

Reaction equation

HRID 884955 reaction equation
[NH2:1][C:2]1[CH:7]=[C:6]([S:8][C:9]([F:12])([F:11])[F:10])[CH:5]=[CH:4][C:3]=1[OH:13].[Cl:14][C:15]1[CH:23]=[N:22][CH:21]=[CH:20][C:16]=1[C:17](O)=[O:18].CCN=C=NCCCN(C)C.N1C=CC=CC=1>O>[Cl:14][C:15]1[CH:23]=[N:22][CH:21]=[CH:20][C:16]=1[C:17]([NH:1][C:2]1[CH:7]=[C:6]([S:8][C:9]([F:12])([F:10])[F:11])[CH:5]=[CH:4][C:3]=1[OH:13])=[O:18]

Participants

6

Reactant 4

HCID 1049PyridineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 27358163-Chloropyridine-4-carboxylic acidHCID 230231052-Amino-4-[(trifluoromethyl)thio]phenol

Product 1

HCID 66881883HCID 66881883, compoundYield 63.3%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 0.60 g of 2-amino-4-(trifluoromethylthio)phenol, 0.45 g of 3-chloroisonicotinic acid, 0.71 g of WSC and 6 ml of pyridine was stirred while heating at 80° C. for three hours. The reaction mixture was cooled to room temperature, and then water was added to the reaction mixture, followed by extraction with ethyl acetate three times. The combined organic layers were washed with water and a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.63 g of 3-chloro-N-[2-hydroxy-5-(trifluoromethylthio)phenyl]isonicotinamide.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionfollowed by extraction with ethyl acetate three times
  3. washThe combined organic layers were washed with water
  4. dry with materiala saturated sodium chloride solution, dried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-ce1d8a04cb054449ad027e26e1cdfcdc
Source dataset
uspto-grants-2012_08
Patent number
US08242133B2

Reaction notes

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