Phenol → 2,4-Dicumylphenol

HRID 329424

反応式

HRID 329424 の反応式
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:8][C:9]([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)=[CH2:10]>C1(C)C=CC=CC=1>[CH3:10][C:9]([C:2]1[CH:3]=[C:4]([C:9]([CH3:10])([CH3:8])[C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH:5]=[CH:6][C:1]=1[OH:7])([CH3:8])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

参加物

4

反応物 2

HCID 996PhenolHCID 7407Alpha-Methylstyrene

生成物 1

HCID 760132,4-Dicumylphenol

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

反応条件

温度
140 °C

実験手順

This intermediate is made by reacting a mixture of 705.8 grams (7.5 moles) of phenol with 1772.7 grams (15 moles) of alpha-methylstyrene in the presence of 25.7 grams (0.135 moles) of P-toluenesulfonic acid monohydrate catalyst. This mixture is heated under nitrogen at 140° C. for 2.5 hours. The reaction mixture is cooled at 110° C. and 1125 ml of toluene is added. After washing the resulting solution at 80° C. with 750 ml of an aqueous solution of 37.5 grams of sodium carbonate and 75 grams of sodium chloride, the organic phase is washed thrice with 1000 ml of aqueous sodium chloride solution; then dried over anhydrous sodium sulfate; filtered and vacuum distilled. The above-named product is obtained as the main fraction boiling at 172°-175° C./0.15-0.18 mm Hg in a yield of 1229.8 grams (49.6% of theory). The product melts at 63°-65° C.

後処理

  1. temperatureThe reaction mixture is cooled at 110° C.
  2. washAfter washing the resulting solution at 80° C. with 750 ml of an aqueous solution of 37.5 grams of sodium carbonate and 75 grams of sodium chloride
  3. washthe organic phase is washed thrice with 1000 ml of aqueous sodium chloride solution
  4. dry with materialthen dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. distillationvacuum distilled
  7. customThe above-named product is obtained as the main fraction boiling at 172°-175° C./0.15-0.18 mm Hg in a yield of 1229.8 grams (49.6% of theory)

出典と根拠

ORDレコード
ord-bdd5f2af1e6f48aeba3b17e55fefb9c9
出典データセット
uspto-grants-1990_01
特許番号
US04891424

関連ノート

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