P-Cresol → 2,6-Dicyclopentyl-4-methylphenol

HRID 597101ノート

反応式

HRID 597101 の反応式
[CH:1]1[CH2:5][CH2:4][CH2:3][CH:2]=1.[CH:6]1[C:11]([OH:12])=[CH:10][CH:9]=[C:8]([CH3:13])[CH:7]=1>>[CH:1]1([C:6]2[CH:7]=[C:8]([CH3:13])[CH:9]=[C:10]([CH:1]3[CH2:5][CH2:4][CH2:3][CH2:2]3)[C:11]=2[OH:12])[CH2:5][CH2:4][CH2:3][CH2:2]1

参加物

3

反応物 2

HCID 2879P-CresolHCID 8882Cyclopentene

生成物 1

HCID 6184642,6-Dicyclopentyl-4-methylphenol収率 36.9%

反応条件

温度
140 °C

実験手順

840 g of cyclopentene are added dropwise to 648 g of p-cresol and 60 g of an acid-activated fuller's earth at 140° C. Next the mixture is stirred at 140° C for 15 h. After having removed the catalyst by filtration the mixture is fractionated. In the boiling range of 153°-156° C 540 g of 2,6-dicyclopentyl-4-methylphenol are obtained (0.8 mm Hg) and between 167°-170° C 422 g of a fraction (0.8 mm Hg) which is recrystallised from petroleum ether. Yield: 360 g of 2,5-dicyclopentyl-4-methylphenol. Melting point: 78° C.

後処理

  1. customAfter having removed the catalyst
  2. filtrationby filtration the mixture

出典と根拠

ORDレコード
ord-6a84c57fcb8b4243b8c87d275379c29e
出典データセット
uspto-grants-1977_03
特許番号
US04013473

反応ノート

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