JPS55127330A - Preparation of phenols - Google Patents
Preparation of phenolsInfo
- Publication number
- JPS55127330A JPS55127330A JP3510979A JP3510979A JPS55127330A JP S55127330 A JPS55127330 A JP S55127330A JP 3510979 A JP3510979 A JP 3510979A JP 3510979 A JP3510979 A JP 3510979A JP S55127330 A JPS55127330 A JP S55127330A
- Authority
- JP
- Japan
- Prior art keywords
- aromatic compound
- mercaptan
- phenol
- alkyl aromatic
- alkyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To improve the selectivity of an alkyl aromatic compound as a raw material having a bulky alkyl group, by adding a mercaptan successively and increasing its recovery amount, in obtaining a phenol in one stage through oxidation of an alkyl aromatic compound in the liquid phase.
CONSTITUTION: An alkyl aromatic compound, e.g. an aromatic hydrocarbon containing a secondary alkyl group, such as cumene or cymene, is oxidized with molecular oxygen in the liquid phase, in the presence of a mercaptan having an acid dissociation constant less than 7.8, to prepare a phenol. A mercaptan is added continuously or intermittently with increasing conversion of the alkyl aromatic compound. An organic carboxylic or sulfonic acid may be preferred as a solvent, and the initial existence of a phenol improves the reaction rate, reduces the reaction time, and in addition, enables the continuous oxidation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3510979A JPS55127330A (en) | 1979-03-27 | 1979-03-27 | Preparation of phenols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3510979A JPS55127330A (en) | 1979-03-27 | 1979-03-27 | Preparation of phenols |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55127330A true JPS55127330A (en) | 1980-10-02 |
Family
ID=12432756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3510979A Pending JPS55127330A (en) | 1979-03-27 | 1979-03-27 | Preparation of phenols |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127330A (en) |
-
1979
- 1979-03-27 JP JP3510979A patent/JPS55127330A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5323939A (en) | Preparation of divalent phenols | |
JPS54157529A (en) | Recovery of resorcinol | |
JPS5553265A (en) | Preparation of aromatic hydroperoxide | |
JPS55127330A (en) | Preparation of phenols | |
JPS5795930A (en) | Preparation of hydroquinone | |
JPS54122263A (en) | Preparation of 1,4-dihydro-9,10-dihydroxyanthracene | |
JPS55143965A (en) | Preparation of aromatic hydroperoxide | |
JPS5770834A (en) | Preparation of coenzyme q | |
JPS5344528A (en) | Separation of dihalogenobenzenes | |
JPS5639045A (en) | Recovery of benzylbenzoate | |
JPS5791972A (en) | Preparation of hydroperoxide | |
FR2277043A1 (en) | EXTRACTION OF PHENOLS FROM AQUEOUS CURRENTS | |
JPS5598128A (en) | Preparation of substituted phenols | |
JPS5791936A (en) | Preparation of ortho-methylated phenolic compound | |
JPS5675446A (en) | Preparation of phenol | |
JPS5616430A (en) | Preparation of phenol | |
JPS56152456A (en) | Preparation of hydroperoxide | |
JPS57163342A (en) | Preparation of 3,4,5-trimethoxybenzoic acid halide | |
JPS5455532A (en) | Preparation of phenols | |
JPS5463039A (en) | Preparation of pyromellitic acid and/or pyromellitic anhydride | |
JPS5692232A (en) | Preparation of phenolic compound | |
JPS5692832A (en) | Preparation of aromatic polycarboxylic acid | |
JPS5481247A (en) | Purification of naphthalene | |
JPS5646844A (en) | Preparation of biphenyltetracarboxylic acid ester | |
JPS55145637A (en) | Preparation of aromatic carboxylic acid or its methyl ester |