Carbon Dioxide → Phenylbenzylglyoxal

HRID 1732678

반응식

HRID 1732678 반응식
[C:1]1([C:7](=[O:17])[CH:8]2[O:10][CH:9]2[C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CC(C)([O-])C.[K+].O.C(=O)=O>C(O)C>[C:1]1([C:7](=[O:17])[C:8](=[O:10])[CH2:9][C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

참가 물질

6

반응물 4

HCID 280Carbon Dioxide2회HCID 962WaterHCID 92219Chalcone epoxideHCID 23665647Potassium tert-butoxide

생성물 1

HCID 11096234Phenylbenzylglyoxal수율 65%

시약·촉매·용매 1

HCID 702Ethanol용매2회

실험 절차

To a boiling solution of 30 g 1,3-diphenyl-2,3-epoxy-1-propanone in 500 ml ethanol was rapidly added a hot solution of 30 g potassium t-butoxide in 500 ml ethanol. The mixture was kept boiling on a steambath for 2 minutes. It was then diluted with 3 l. water. The aqueous solution was saturated with carbon dioxide by the addition of small pieces of dry ice. The resulting emulsion was extracted with ether. The ether extracts were diluted with benzene, dried over sodium sulfate and evaporated under reduced pressure. The remaining dark oil was distilled in high vacuum to afford 19.5 g 1,3-diphenyl-1,2-propanedione; b.p. 136°-138°/0.1 mm.

후처리

  1. additionIt was then diluted with 3 l
  2. extractionThe resulting emulsion was extracted with ether
  3. additionThe ether extracts were diluted with benzene
  4. dry with materialdried over sodium sulfate
  5. customevaporated under reduced pressure
  6. distillationThe remaining dark oil was distilled in high vacuum

출처 및 근거

ORD 기록
ord-e0826d928bbc4c1fa7badb1f1dbb8117
출처 데이터셋
uspto-grants-1980_12
특허 번호
US04238589

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