Benzene → 2-Cyclohexen-1-one, 2,6,6-trimethyl-3-(2-methylpropoxy)-

HRID 442404노트

반응식

HRID 442404 반응식
[CH3:1][CH:2]1[C:7](=[O:8])[CH:6]=[CH:5][C:4]([CH3:10])([CH3:9])[C:3]1=[O:11].C1C=CC=CC=1.[CH2:18](O)[CH:19]([CH3:21])[CH3:20].CC1C=CC(S(O)(=O)=O)=CC=1>O>[CH3:1][C:2]1[C:3](=[O:11])[C:4]([CH3:10])([CH3:9])[CH2:5][CH2:6][C:7]=1[O:8][CH2:18][CH:19]([CH3:21])[CH3:20]

참가 물질

6

반응물 4

HCID 241BenzeneHCID 6101p-Toluenesulfonic acidHCID 6560IsobutanolHCID 70585111HCID 70585111, 화합물

생성물 1

HCID 109217652-Cyclohexen-1-one, 2,6,6-trimethyl-3-(2-methylpropoxy)-

시약·촉매·용매 1

HCID 962Water용매

실험 절차

The compound 2,6,6-trimethylcyclohexen-1,3-dione (43.6 g) was added to a mixture of benzene (250 ml), isobutanol (50 ml) and PTSA (500 mg) and heated under reflux for 3 hr in conjunction with a Dean and Stark water separator. The reaction was then cooled to room tmperature, washed with aqueous sodium carbonate solution and brine and taken to dryness in vacuo. Distillation of residue through a 6 inch vacuum jacketed vigreaux column yielded pure 2,6,6-trimethyl-3-isobutoxycyclohex-2-en-1 one (54.6 g) b p 104°-107°.

후처리

  1. temperatureheated
  2. temperatureThe reaction was then cooled to room tmperature
  3. washwashed with aqueous sodium carbonate solution and brine
  4. distillationDistillation of residue through a 6 inch vacuum

출처 및 근거

ORD 기록
ord-c2ae4c8be01c44ea893f691f36e91e81
출처 데이터셋
uspto-grants-1977_08
특허 번호
US04045476

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