Phenol → Phenol, 4,4'-[1,3-phenylenebis(1-methylethylidene)]bis-

HRID 429605

Reaktionsgleichung

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

Komponenten

Reaktionsbedingungen

Temperatur: 80 °C

Versuchsvorschrift

A 500-ml three-neck reactor was charged with amberlist-15 (7.5 g, 2.6 mmols), phenol (178.5 g, 633 mmols) and toluene (30 ml). The contents were heated up to 80° C. in nitrogen atmosphere. Under agitation, a mixture of m-diisopropenylbenzene (m-DIPeB, 15.0 g, 31.5 mmols) and toluene (30 ml) was fed thereto over 3 hours at 80° C. After completion of the feed, agitation was carried out at 80° C. for 10 minutes and then Amberlist-15 was removed by filtration. The filtrate was analyzed by liquid matography. Bisphenol M (α, α″-bis(4-hydroxyphenyl)-1,2-diisopropylbenzene, 28.8 g, yield 88%), the intended product, and the o,p-product, the position isomer of bisphenol M (α-(4-hydroxyphenyl)-α″-(2-hydroxyphenyl)-1,3-diisopropylbenzene, 2.79 g, yield 8.5%), were obtained. After completion of the same aftertreatment and purification operations as those in Example 3, bisphenol M was isolated (17.7 g., isolation yield 54%, purity 99.6%).

Aufarbeitung

waitAfter completion of the feed, agitation was carried out at 80° C. for 10 minutes
customAmberlist-15 was removed by filtration

Quellen und Nachweise

ORD-Eintrag: ord-587a7ca369e74fc1b0a9d449b2c82041
Quelldatensatz: uspto-grants-2001_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US06316677B1

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