Toluene → alpha-Methylstyrene isopropenyltoluene

HRID 49747

반응식

HRID 49747 반응식
[CH3:1][C:2]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)=[CH2:3].[C:10]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[CH3:19])([CH3:12])=[CH2:11].C1(C)C=CC=CC=1>CC(C)=O>[CH3:3][C:2]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)=[CH2:1].[C:10]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[CH3:19])([CH3:12])=[CH2:11]

참가 물질

5

반응물 3

HCID 1140TolueneHCID 7407Alpha-MethylstyreneHCID 81886O,alpha-dimethylstyrene

생성물 1

HCID 86585334alpha-Methylstyrene isopropenyltoluene

시약·촉매·용매 1

HCID 180Acetone용매

실험 절차

250 g α-methyl styrene (99.8% purity), 250 g isopropenyltoluene, and 500 g toluene were introduced into a three-mouthed flask, and mixed while boron trifluoride phenol complex was slowly added, and the material was then cooled under dry ice and acetone solvent and reacted for 3 hr at 20° C. Next, alkali was added to inactivate and remove the catalyst, and concentrated to remove the solvent and unreacted monomer, and α-methylstyrene-isopropenyltoluene copolymer was obtained as a residue. This polymer was designated Polymer B3, and its physical properties are listed in Table 2.

후처리

  1. additionmixed while boron trifluoride phenol complex
  2. additionwas slowly added
  3. temperaturethe material was then cooled under dry ice
  4. additionNext, alkali was added to inactivate and
  5. customremove the catalyst
  6. concentrationconcentrated
  7. customto remove the solvent and unreacted monomer

출처 및 근거

ORD 기록
ord-db5f8f3c860240cb9161dd66c55b5231
출처 데이터셋
uspto-grants-2004_03
특허 번호
US06709798B2

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