Ethylene Glycol → 2-(3-Ethenylphenyl)-1,3-dioxolane

HRID 232415

반응식

HRID 232415 반응식
[CH:1]([C:3]1[CH:4]=[C:5]([CH:8]=[CH:9][CH:10]=1)[CH:6]=[O:7])=[CH2:2].[CH2:11](O)[CH2:12][OH:13].O.C1(C)C=CC(S(O)(=O)=O)=CC=1.O>C1C=CC=CC=1>[CH:1]([C:3]1[CH:4]=[C:5]([CH:6]2[O:13][CH2:12][CH2:11][O:7]2)[CH:8]=[CH:9][CH:10]=1)=[CH2:2]

참가 물질

6

반응물 4

HCID 174Ethylene GlycolHCID 962WaterHCID 393903-VinylbenzaldehydeHCID 521998p-Toluenesulfonic acid monohydrate

생성물 1

HCID 102413132-(3-Ethenylphenyl)-1,3-dioxolane

시약·촉매·용매 1

HCID 241Benzene용매

실험 절차

To a solution of 3-ethenylbenzaldehyde from Step 1 (3.77 g) and ethylene glycol (1.8 mL) in benzene (40 mL ) was added p-toluenesulfonic acid monohydrate (100 mg). The reaction mixture was heated to reflux for 6 hours. The water produced by the reaction was collected in a Dean-Stark trap. The reaction was allowed to cool to room temperature. The reaction was diluted with NH4OAc buffer and extracted with ethyl acetate. The organic layer was dried over sodium sulfate and evaporated. Flash chromatography of the residue using 15% diethyl ether in hexane afforded the title compound.

후처리

  1. temperatureThe reaction mixture was heated
  2. temperatureto reflux for 6 hours
  3. customwas collected in a Dean-Stark trap
  4. additionThe reaction was diluted with NH4OAc buffer
  5. extractionextracted with ethyl acetate
  6. dry with materialThe organic layer was dried over sodium sulfate
  7. customevaporated

출처 및 근거

ORD 기록
ord-ceae491d9b0947708fde94b767b24416
출처 데이터셋
uspto-grants-1989_07
특허 번호
US04851409

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