4-Chloro-alpha-methylstyrene → 4-Chlorocumene

HRID 543869

반응식

HRID 543869 반응식
[Cl:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([CH3:8])=[CH2:7])=[CH:4][CH:3]=1.[H][H]>[Pt]=O.C(O)C>[Cl:1][C:2]1[CH:10]=[CH:9][C:5]([CH:6]([CH3:8])[CH3:7])=[CH:4][CH:3]=1

참가 물질

5

반응물 2

HCID 743814-Chloro-alpha-methylstyreneHCID 178418361HCID 178418361, 화합물2회

생성물 1

HCID 174934-Chlorocumene수율 74%

시약·촉매·용매 2

HCID 82844Platinum oxide (PtO)촉매HCID 702Ethanol용매

실험 절차

A mixture of p-chloro-α-methylstyrene (15.7 g, 204 mmole), 20 milligrams (mg) platinum oxide, and 20 ml absolute ethanol was shaken on a Paar Hydrogenator for about 8 hours, beginning with an initial hydrogen pressure of 42 pounds-per-square-inch (psi). During this procedure, an additional 14 psi of hydrogen were added to the Hydrogenator reservoir. The mixture was then filtered and the solvent removed by careful distillation at atmospheric pressure. The residual material resulting was distilled using a water aspirator vacuum to yield 12.69 g (74% yield) of p-chlorocumene (bp 69°-74° C.).

후처리

  1. filtrationThe mixture was then filtered
  2. customthe solvent removed by careful distillation at atmospheric pressure
  3. customThe residual material resulting
  4. distillationwas distilled

출처 및 근거

ORD 기록
ord-bbeb382fa30e424ebb0024583d6546bf
출처 데이터셋
uspto-grants-1984_05
특허 번호
US04447542

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