Sodium Hydroxide → Benzoic acid, 4-((3-pyridinylcarbonyl)amino)-

HRID 1288910Notes

Reaction equation

HRID 1288910 reaction equation
C([C:3]1[CH:11]=[C:10]([NH:12][C:13]([C:15]2[CH:16]=[N:17][CH:18]=[CH:19][CH:20]=2)=[O:14])[CH:9]=[CH:8][C:4]=1[C:5]([OH:7])=[O:6])C.[OH-].[Na+]>CO>[N:17]1[CH:18]=[CH:19][CH:20]=[C:15]([C:13]([NH:12][C:10]2[CH:11]=[CH:3][C:4]([C:5]([OH:7])=[O:6])=[CH:8][CH:9]=2)=[O:14])[CH:16]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 54452435HCID 54452435, compound

Product 1

HCID 79836Benzoic acid, 4-((3-pyridinylcarbonyl)amino)-

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of 12.0 g (0.044 mol) of ethyl 4-[(3-pyridinylcarbonyl)amino]benzoic acid, 65 ml of 2N sodium hydroxide and 120 ml of methanol is refluxed for 0.75 hour. The solvent is removed and the residue extracted with diethyl ether. The residue is diluted with water and solid citric acid is added until the pH is 4-5. The mixture is filtered and the solid washed with water and air dried to give crystals, m.p. 307°-310° C.

Workup

  1. temperatureis refluxed for 0.75 hour
  2. customThe solvent is removed
  3. extractionthe residue extracted with diethyl ether
  4. additionThe residue is diluted with water and solid citric acid
  5. additionis added until the pH is 4-5
  6. filtrationThe mixture is filtered
  7. washthe solid washed with water and air
  8. customdried
  9. customto give crystals, m.p. 307°-310° C.

Sources & evidence

ORD record
ord-d5fffd0d27ce40eba405b21c5ca0498b
Source dataset
uspto-grants-1998_05
Patent number
US05747487

Reaction notes

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