GB321843A - Improvements in the manufacture and production of aliphatic and cycloaliphatic saturated sulphinic acids - Google Patents
Improvements in the manufacture and production of aliphatic and cycloaliphatic saturated sulphinic acidsInfo
- Publication number
- GB321843A GB321843A GB3483228A GB3483228A GB321843A GB 321843 A GB321843 A GB 321843A GB 3483228 A GB3483228 A GB 3483228A GB 3483228 A GB3483228 A GB 3483228A GB 321843 A GB321843 A GB 321843A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphinic
- sulphur dioxide
- acid
- pentane
- cyclohexane
- 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
- C07C313/00—Sulfinic acids; Sulfenic acids; Halides, esters or anhydrides thereof; Amides of sulfinic or sulfenic acids, i.e. compounds having singly-bound oxygen atoms of sulfinic or sulfenic groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C313/02—Sulfinic acids; Derivatives thereof
- C07C313/04—Sulfinic acids; Esters thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
Abstract
321,843. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 26, 1928. Sulphinic acids are prepared by causing sulphur dioxide to act on open chain aliphatic or cycloaliphatic saturated hydrocarbons in the presence of an anhydrous halide of aluminium or boron, preferably at pressures above atmospheric pressure and at elevated temperature. Mixtures of hydrocarbons such as benzine, ligroin and the like are particularly suitable. The Specification gives an example in which sulphur dioxide is forced into a mixture of 100 parts by weight of n-pentane and 50 parts anhydrous aluminium chloride until the pressure reaches 25 atmospheres. The whole is then warmed to 50-60 Centigrade. The product is precipitated with caustic soda. The sodium salt of the sulphinic acid, which forms colourless crystals, is worked up in the usual manner and the free n-pentane sulphinic acid is liberated with sulphuric acid and extracted with ether. A further example gives the preparation of cyclohexane sulphinic acid from cyclohexane, sulphur dioxide and aluminium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3483228A GB321843A (en) | 1928-11-26 | 1928-11-26 | Improvements in the manufacture and production of aliphatic and cycloaliphatic saturated sulphinic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3483228A GB321843A (en) | 1928-11-26 | 1928-11-26 | Improvements in the manufacture and production of aliphatic and cycloaliphatic saturated sulphinic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB321843A true GB321843A (en) | 1929-11-21 |
Family
ID=10370443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3483228A Expired GB321843A (en) | 1928-11-26 | 1928-11-26 | Improvements in the manufacture and production of aliphatic and cycloaliphatic saturated sulphinic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB321843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734050A (en) * | 1956-02-07 | Process of making same |
-
1928
- 1928-11-26 GB GB3483228A patent/GB321843A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734050A (en) * | 1956-02-07 | Process of making same |
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