GB696439A - Production of substituted thiophenes - Google Patents
Production of substituted thiophenesInfo
- Publication number
- GB696439A GB696439A GB162951A GB162951A GB696439A GB 696439 A GB696439 A GB 696439A GB 162951 A GB162951 A GB 162951A GB 162951 A GB162951 A GB 162951A GB 696439 A GB696439 A GB 696439A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- olefine
- butene
- sulphur
- catalyst
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/08—Hydrogen atoms or radicals containing only hydrogen and carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Thiophene derivatives are produced when sulphur is reacted with an olefinic compound of the formula RCH=CH2, where R is a hydrocarbon radical or a hydrocarbon radical carrying substituents which are inert under the conditions of the reaction, the reaction being carried out in the presence of a compound which is known for use commercially as a vulcanization accelerator. Compounds mentioned for this purpose include mercaptobenzothiazole, hexamine, aldehyde amine condensation products, diphenyl guanidine, thioureas, thiophenols, dithiocarbamates, trithiocarbamates, xanthates and thiuram disulphides. The reaction is carried out by raising the temperature of the mixture of catalyst, sulphur and olefine together with a diluent if the latter is used, to a point where vigorous evolution of hydrogen sulphide occurs. Starting materials include aliphatic olefines containing up to 20 carbon atoms of which propylene, butene-1 and butene-2, the lower polymers or copolymers derived by cracking long-chain hydrocarbons such as paraffin wax. Aromatic olefins include styrene and its substitution products such as alkyl styrenes. An example is given using styrene as the olefine and mercaptobenzothiazole as the catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB162951A GB696439A (en) | 1951-01-22 | 1951-01-22 | Production of substituted thiophenes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB162951A GB696439A (en) | 1951-01-22 | 1951-01-22 | Production of substituted thiophenes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB696439A true GB696439A (en) | 1953-09-02 |
Family
ID=9725250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB162951A Expired GB696439A (en) | 1951-01-22 | 1951-01-22 | Production of substituted thiophenes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB696439A (en) |
-
1951
- 1951-01-22 GB GB162951A patent/GB696439A/en not_active Expired
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