Sodium Hydroxide → HCID 14075339, compound

HRID 986584Notes

Reaction equation

HRID 986584 reaction equation
Cl.[Br:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[N:10]([CH3:22])[C:11]([CH3:21])=[C:12]([C:18](=[O:20])[CH:19]=2)[C:13]([O:15]CC)=[O:14])=[CH:5][CH:4]=1.[OH-].[Na+]>O>[Br:2][C:3]1[CH:4]=[CH:5][C:6]([C:9]2[N:10]([CH3:22])[C:11]([CH3:21])=[C:12]([C:18](=[O:20])[CH:19]=2)[C:13]([OH:15])=[O:14])=[CH:7][CH:8]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 14075381HCID 14075381, compound

Product 1

HCID 14075339HCID 14075339, compoundYield 89%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

5.3 g (0.014 mol) of ethyl 6-(4-bromophenyl)-1,2-dimethyl-4-oxonicotinate hydrochloride is suspended in 100 ml of water and to it there is added 5 g (0.0625 mol) of 50% aqueous sodium hydroxide. The mixture is refluxed and stirred for 1 hr. and the solution formed is cooled to room temperature. The solution is extracted with methylenedichloride and the aqueous solution is acidified to pH 1 with 12N hydrochloric acid. The suspension formed is vacuum filtered and the filter cake is washed with water and dried to afford 4 g (89% yield) of 6-(4-bromophenyl)-1,2-dimethyl-4-oxonicotinic acid, mp 269°-271° C. dec.

Workup

  1. temperatureThe mixture is refluxed
  2. customand the solution formed
  3. extractionThe solution is extracted with methylenedichloride
  4. customThe suspension formed
  5. filtrationfiltered
  6. washthe filter cake is washed with water
  7. customdried

Sources & evidence

ORD record
ord-0d484bf98bb6418781e970df6e30a802
Source dataset
uspto-grants-1987_12
Patent number
US04714492

Reaction notes

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