Ethanol → HCID 12902853, compound

HRID 1389743Notes

Reaction equation

HRID 1389743 reaction equation
[C:1]([C:3]1[C:11]2[O:10][CH:9]=[C:8]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[C:7]=2[CH:6]=[C:5]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[CH:4]=1)#N.[OH-:24].[K+].C(O)C.[OH2:29]>>[C:12]1([C:8]2[C:7]3[CH:6]=[C:5]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[CH:4]=[C:3]([C:1]([OH:29])=[O:24])[C:11]=3[O:10][CH:9]=2)[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1

Participants

5

Procedure

A mixture containing 30 g. (0.10 mole) of the product of step C, 14.5 g. (0.22 mole) of 85 percent potassium hydroxide, 400 ml. of ethanol and 50 ml. of water is heated at its reflux temperature for 16 hours, cooled and filtered. The product is washed with ethanol, suspended in water and acidified with 6 N hydrochloric acid. The mixture is heated on a steam bath for one hour, cooled and filtered. Recrystallization from ethanol provides 3,5-diphenylbenzofuran-7-carboxylic acid as a white solid.

Workup

  1. additionA mixture containing 30 g
  2. temperaturereflux temperature for 16 hours
  3. temperaturecooled
  4. filtrationfiltered
  5. washThe product is washed with ethanol
  6. temperatureThe mixture is heated on a steam bath for one hour
  7. temperaturecooled
  8. filtrationfiltered
  9. customRecrystallization from ethanol

Sources & evidence

ORD record
ord-ebc85afe505e4ab6bed93e6535a61f81
Source dataset
uspto-grants-1981_01
Patent number
US04246179

Reaction notes

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