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

HRID 597101

반응식

[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

참가 물질

반응물 2

HCID 2879P-Cresol

HCID 8882Cyclopentene

생성물 1

HCID 6184642,6-Dicyclopentyl-4-methylphenol수율 36.9%

반응 조건

온도: 140 °C

실험 절차

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.

후처리

customAfter having removed the catalyst
filtrationby filtration the mixture

출처 및 근거

ORD 기록: ord-6a84c57fcb8b4243b8c87d275379c29e
출처 데이터셋: uspto-grants-1977_03
DOI: 10.6084/m9.figshare.5104873.v1
특허 번호: US04013473

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