Reaktionsgleichung
C([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[CH:10]([CH3:12])[CH3:11])(C)C.[C:13]1([CH:20]=CC=C(O)[CH:15]=1)O.[O-]O>>[CH:10]([C:5]1[CH:4]=[CH:9][CH:8]=[C:7]([CH:13]([CH3:20])[CH3:15])[CH:6]=1)([CH3:11])[CH3:12]Komponenten
Versuchsvorschrift
By well-known processes, diisopropylbenzene (DIPB) is oxidized to produce, among other products, the dihydroperoxides (DHP) and hydroxyhydroperoxides (HHP) of diisopropylbenzene, for the preparation of resorcinol. Almost all acid-catalyzed decompositions of m-DHP to resorcinol require the use of pure m-DHP. For example, U.S. Pat. No. 3,928,469 disclosed that a crude hydroperoxide mixture which is obtained from the oxidation product of m-diisopropylbenzene, and which has a composition consisting of 72% m-DHP, 20% m-HHP, and 8% others, is cleaved in a usual manner, using a mineral acid catalyst, to give only a low cleavage yield of about 70 to 73% resorcinol based on moles m-DHP used. Yet, there is no practical way to make pure DHP by the hydroperoxidation of m-DIPB and there is no economical way to separate HHP and other products from the hydroperoxidation product to obtain pure DHP.
Aufarbeitung
- customto produce, among other products
Quellen und Nachweise
- ORD-Eintrag
- ord-ebc24b6bd846407f8d906edfe326c768
- Quelldatensatz
- uspto-grants-1989_07
- Patentnummer
- US04847437
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