Hydrochloric Acid → HCID 178524402, compound

HRID 1646522Notes

Reaction equation

HRID 1646522 reaction equation
[SH:1][C:2]1[S:3][C:4]([SH:7])=[N:5][N:6]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:15][C:16]1[CH:24]=[CH:23][C:19]([C:20]([OH:22])=[O:21])=[CH:18][CH:17]=1.Cl>O.CN(C)C=O>[SH:7][C:4]1[S:3][C:2]([S:1][CH2:15][C:16]2[CH:24]=[CH:23][C:19]([C:20]([OH:22])=[O:21])=[CH:18][CH:17]=2)=[N:6][N:5]=1

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 11430Potassium CarbonateHCID 225994-(Bromomethyl)benzoic acidHCID 178418558HCID 178418558, compound

Product 1

HCID 178524402HCID 178524402, compoundYield 30.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a mixture of 1.5 g of 2,5-dimercapto-1,3,4-thiadiazole, 2.76 g of anhydrous potassium carbonate and 10 ml of N,N-dimethylformamide was added 1 g of p-(bromomethyl)benzoic acid followed by stirring at room temperature for 3 hours. The reaction mixture was diluted with 30 ml of water, made acidic with diluted hydrochloric acid and, extracted with ethyl acetate. The extract was washed with water, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was applied to silica gel column chromatography. Elution with a mixture of toluene-ethyl acetate (1:1) gave 400 mg of p-[(5-mercapto-1,3,4-thiadiazol-2-yl)thiomethyl]benzoic acid.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. washElution
  6. additionwith a mixture of toluene-ethyl acetate (1:1)

Sources & evidence

ORD record
ord-f7973e26f05946d0a61be4319801bc44
Source dataset
uspto-grants-1993_01
Patent number
US05180730

Reaction notes

Loading…