Ethanol → Benzoic acid, 3,5-dihydroxy-, ethyl ester

HRID 596553

반응식

HRID 596553 반응식
[C:1]([OH:11])(=[O:10])[C:2]1[CH:9]=[C:7]([OH:8])[CH:6]=[C:4]([OH:5])[CH:3]=1.S(=O)(=O)(O)O.[CH2:17](O)[CH3:18]>>[OH:5][C:4]1[CH:3]=[C:2]([CH:9]=[C:7]([OH:8])[CH:6]=1)[C:1]([O:11][CH2:17][CH3:18])=[O:10]

참가 물질

4

반응물 3

HCID 702EthanolHCID 1118Sulfuric AcidHCID 74243,5-Dihydroxybenzoic Acid

생성물 1

HCID 20098Benzoic acid, 3,5-dihydroxy-, ethyl ester

실험 절차

308 g. of α-resorcylic acid were dissolved in 1000 ml of absolute ethanol and 25 ml of concentrated sulphuric acid were added. The reaction mixture was boiled under reflux for 20 hours. The ethanol was evaporated and the residue poured into water and extracted with ether. The etheral phase was washed with sodium bicarbonate solution and water and dried with magnesium sulphate. When the ether was evaporated, a crystallizing residue was obtained.

후처리

  1. temperatureunder reflux for 20 hours
  2. customThe ethanol was evaporated
  3. additionthe residue poured into water
  4. extractionextracted with ether
  5. washThe etheral phase was washed with sodium bicarbonate solution and water
  6. dry with materialdried with magnesium sulphate
  7. customWhen the ether was evaporated
  8. customa crystallizing residue was obtained

출처 및 근거

ORD 기록
ord-e25275f85899497b949fae76d595567b
출처 데이터셋
uspto-grants-1977_03
특허 번호
US04011258

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