GB819450A - Process for the conversion of hydroperoxides of secondary alkyl aryls into phenols and ketones - Google Patents
Process for the conversion of hydroperoxides of secondary alkyl aryls into phenols and ketonesInfo
- Publication number
- GB819450A GB819450A GB8102/58A GB810258A GB819450A GB 819450 A GB819450 A GB 819450A GB 8102/58 A GB8102/58 A GB 8102/58A GB 810258 A GB810258 A GB 810258A GB 819450 A GB819450 A GB 819450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dihydroperoxide
- per cent
- hydroperoxides
- phenols
- ketones
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/53—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of hydroperoxides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/08—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by decomposition of hydroperoxides, e.g. cumene hydroperoxide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Hydroperoxides of secondary alkyl aryl compounds are converted into phenols and ketones by decomposing the hydroperoxide with a catalytic amount of sulphur trioxide, viz. 0.001 to 1 per cent by weight (based on the total reaction mixture), the reaction being carried out in a polar organic solvent, such as a ketone. The solvent may contain 0.2 to 1 per cent by weight of water. In Example (2), metal di-isopropyl benzene dihydroperoxide is prepared by oxidation of meta di-isopropyl benzene with air; and the dihydroperoxide is crystallized out by adding toluene. The dihydroperoxide is then dissolved in acetone having a water-content of 0.3 per cent. A dilute solution of sulphur trioxide in acetone is also prepared. The two solutions are separately pumped through two reactors connected in series. The reactors are maintained at 58 DEG C.; and the residence-time of the mixture therein is 10 minutes. After adding magnesia to the effluent, it is filtered, and fractionally distilled to separate resorcinol. Example (4) relates to the conversion of cumene hydroperoxide into phenol. Specification 684,039 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL819450X | 1957-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB819450A true GB819450A (en) | 1959-09-02 |
Family
ID=19839006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8102/58A Expired GB819450A (en) | 1957-03-15 | 1958-03-13 | Process for the conversion of hydroperoxides of secondary alkyl aryls into phenols and ketones |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB819450A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4339614A (en) * | 1980-03-14 | 1982-07-13 | Pcuk Produits Chimiques Ugine Kuhlmann | Superacid catalyzed preparation of resorcinol from meta-isopropylphenol |
US4339613A (en) * | 1980-03-14 | 1982-07-13 | Pcuk Produits Chimiques Ugine Kuhlmann | Superacid catalyzed preparation of resorcinol from meta-diisopropylbenzene |
EP1066233A1 (en) * | 1998-02-24 | 2001-01-10 | Indspec Chemical Corporation | Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
BE1015709A3 (en) * | 2002-10-11 | 2005-07-05 | Sumitomo Chemical Co | CATALYST FOR AN acidolysis AROMATIC COMPOUND AND USE hydroperoxy. |
-
1958
- 1958-03-13 GB GB8102/58A patent/GB819450A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4339614A (en) * | 1980-03-14 | 1982-07-13 | Pcuk Produits Chimiques Ugine Kuhlmann | Superacid catalyzed preparation of resorcinol from meta-isopropylphenol |
US4339613A (en) * | 1980-03-14 | 1982-07-13 | Pcuk Produits Chimiques Ugine Kuhlmann | Superacid catalyzed preparation of resorcinol from meta-diisopropylbenzene |
EP1066233A1 (en) * | 1998-02-24 | 2001-01-10 | Indspec Chemical Corporation | Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
EP1066233A4 (en) * | 1998-02-24 | 2001-04-25 | Indspec Chemical Corp | Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
US6350921B1 (en) | 1998-02-24 | 2002-02-26 | Indspec Chemical Corporation | Process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
BE1015709A3 (en) * | 2002-10-11 | 2005-07-05 | Sumitomo Chemical Co | CATALYST FOR AN acidolysis AROMATIC COMPOUND AND USE hydroperoxy. |
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