GB1005231A - Polycarboxydiphenyl sulphones - Google Patents
Polycarboxydiphenyl sulphonesInfo
- Publication number
- GB1005231A GB1005231A GB347562A GB347562A GB1005231A GB 1005231 A GB1005231 A GB 1005231A GB 347562 A GB347562 A GB 347562A GB 347562 A GB347562 A GB 347562A GB 1005231 A GB1005231 A GB 1005231A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphone
- sulphones
- oxygen
- para
- 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
- C07C315/00—Preparation of sulfones; Preparation of sulfoxides
- C07C315/04—Preparation of sulfones; Preparation of sulfoxides by reactions not involving the formation of sulfone or sulfoxide groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the preparation of polycarboxydiphenyl sulphones by the oxidation of alkyldiphenyl sulphones of theformula <FORM:1005231/C2/1> where R1, R2, R3, R4, R5, R11, R12, R13, R14 and R15 are H or alkyl groups and the total number of alkyl groups is at least 2 and not exceeding 4, in the liquid phase in an aliphatic or aromatic monocarboxylic acid diluent by means of oxygen or a molecular oxygen-containing gas in the presence of at least one metal compound as catalyst (the metal being manganese or cobalt), and bromine or a bromine-containing substance. In an example di-para-tolyl sulphone, cobalt bromide, manganese bromide and glacial acetic acid are heated together at 130 DEG C. for 3 hours in an autoclave which had initially been pressurized with oxygen to a total pressure of 400 pounds per square inch to produce di-(para-carboxy-phenyl) sulphone. In another example 2,4,41-trimethyldiphenyl sulphone is treated as in the previous example to produce 2,4,41-tricarboxydiphenyl sulphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB347562A GB1005231A (en) | 1962-01-30 | 1962-01-30 | Polycarboxydiphenyl sulphones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB347562A GB1005231A (en) | 1962-01-30 | 1962-01-30 | Polycarboxydiphenyl sulphones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1005231A true GB1005231A (en) | 1965-09-22 |
Family
ID=9759038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB347562A Expired GB1005231A (en) | 1962-01-30 | 1962-01-30 | Polycarboxydiphenyl sulphones |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1005231A (en) |
-
1962
- 1962-01-30 GB GB347562A patent/GB1005231A/en not_active Expired
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