GB894060A - Halogenated o-quinones - Google Patents
Halogenated o-quinonesInfo
- Publication number
- GB894060A GB894060A GB3774259A GB3774259A GB894060A GB 894060 A GB894060 A GB 894060A GB 3774259 A GB3774259 A GB 3774259A GB 3774259 A GB3774259 A GB 3774259A GB 894060 A GB894060 A GB 894060A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxidizing agent
- nitric acid
- nitric
- formula
- bromine
- 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
- C07C50/00—Quinones
- C07C50/24—Quinones containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C46/00—Preparation of quinones
- C07C46/02—Preparation of quinones by oxidation giving rise to quinoid structures
- C07C46/06—Preparation of quinones by oxidation giving rise to quinoid structures of at least one hydroxy group on a six-membered aromatic ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for producing an o-benzoquinone having the formula <FORM:0894060/IV (b)/1> wherein X represents chlorine and/or bromine comprises oxidizing a phenol having the formula <FORM:0894060/IV (b)/2> wherein X is chlorine and/or bromine with nitric acid or like oxidizing agent as defined below, in the presence of an organic solvent which is inert to the oxidizing agent under the reaction conditions comprising a saturated aliphatic hydrocarbon, an aromatic hydrocarbon, a nitro or halogen derivative of any of said hydrocarbons or a mixture of any two or more of these solvents. The term "nitric acid or like oxidizing agent" is defined to include aqueous, commercial concentrated, pure and fuming nitric acids and nitric anhydride. The required nitric acid may be formed in situ by supplying the required nitrogen oxide, oxygen and water. Representative of the many solvents specified for use in the process are methylene chloride, isooctane, nitromethane, petroleum ether, toluene, amylbenzene, trifluorotrichloroethane, chlorobenzene, 1,5-dibromopentane, nitrotoluene and ethylene bromide. In examples the preparation is described of chlor- and bromanils, 3-chloro-4, 5, 6 - tribromo - and 3 - bromo - 4, 5, 6 - trichlorobenzo-quinones.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3774259A GB894060A (en) | 1959-11-06 | 1959-11-06 | Halogenated o-quinones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3774259A GB894060A (en) | 1959-11-06 | 1959-11-06 | Halogenated o-quinones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB894060A true GB894060A (en) | 1962-04-18 |
Family
ID=10398711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3774259A Expired GB894060A (en) | 1959-11-06 | 1959-11-06 | Halogenated o-quinones |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB894060A (en) |
-
1959
- 1959-11-06 GB GB3774259A patent/GB894060A/en not_active Expired
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