Potassium Hydroxide → HCID 13065107, compound

HRID 1856528Notes

Reaction equation

HRID 1856528 reaction equation
[OH-].[K+].C([O:5][C:6]([C:8]1[CH:9]=[CH:10][C:11]2[C:15]3[CH:16]=[C:17]([CH3:20])[CH:18]=[CH:19][C:14]=3[S:13][C:12]=2[CH:21]=1)=[O:7])C>C(O)C>[CH3:20][C:17]1[CH:18]=[CH:19][C:14]2[S:13][C:12]3[CH:21]=[C:8]([C:6]([OH:7])=[O:5])[CH:9]=[CH:10][C:11]=3[C:15]=2[CH:16]=1

Participants

4

Reactant 2

HCID 14797Potassium HydroxideHCID 13065108HCID 13065108, compound

Product 1

HCID 13065107HCID 13065107, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 0.73 g. of potassium hydroxide in 50 ml. of ethanol was added 3.5 g. of 8-methyldibenzothiophene-3-carboxylic acid ethyl ester. The solution was refluxed for 3 hours. The solvent was removed in vacuo on the steam bath, and the crude potassium salt was dissolved in 50 ml. of water. The solution was acidified with dilute hydrochloric acid and the product was filtered off and dried. The yield of 8-methyldibenzothiophene-3-carboxylic acid was 2 g., m.p. 290°-291°.

Workup

  1. temperatureThe solution was refluxed for 3 hours
  2. customThe solvent was removed in vacuo on the steam bath
  3. dissolutionthe crude potassium salt was dissolved in 50 ml
  4. filtrationthe product was filtered off
  5. customdried

Sources & evidence

ORD record
ord-e7af076aa9d0492e9a669df34edd9c90
Source dataset
uspto-grants-1980_08
Patent number
US04219657

Reaction notes

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