GB465662A - Manufacture of alkylene sulphides - Google Patents
Manufacture of alkylene sulphidesInfo
- Publication number
- GB465662A GB465662A GB31154/35A GB3115435A GB465662A GB 465662 A GB465662 A GB 465662A GB 31154/35 A GB31154/35 A GB 31154/35A GB 3115435 A GB3115435 A GB 3115435A GB 465662 A GB465662 A GB 465662A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- epichlorhydrin
- ethylene oxide
- ethylene
- sulphide
- 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
- C07D331/00—Heterocyclic compounds containing rings of less than five members, having one sulfur atom as the only ring hetero atom
- C07D331/02—Three-membered rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
Alkylene sulphides are prepared by reaction of ethylene oxide or its derivatives, such as propylene oxide, glycide or epichlorhydrin, with a water-soluble sulphocyanide, or thiourea or its derivatives. Solvents, e.g. water, alcohol, ether, and accelerators, e.g. alkali chloride or carbonate, may be present. In examples: (1) ethylene oxide is introduced into an aqueous solution of potassium sulphocyanide at -5 to -10 DEG C. Ethylene sulphide separates, potassium cyanate also being formed. Epichlorhydrin similarly yields chlor-propylene sulphide; (2) thiourea is dissolved in a mixture of ethylene oxide and water at 10--12 DEG C. On standing at a temperature below 0 DEG C., ethylene sulphide is formed together with some polymer the quantity of which increases with increase of temperature and time. The sulphides and urea obtained are separated.ALSO:Water-soluble sulphocyanides are converted into cyanates by reaction with ethylene oxide or its derivatives, such as propylene oxide, glycide or epichlorhydrin. Solvents, e.g. water, alcohol, ether, and accelerators, e.g. alkali chloride or carbonate, may be present. In an example, ethylene oxide is introduced into an aqueous solution of potassium sulphocyanide at - 5 to - 10 DEG C. On standing, potassium cyanate crystallizes while the ethylene sulphide also formed separates from the aqueous solution. Epichlorhydrin may be employed similarly.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE465662X | 1934-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB465662A true GB465662A (en) | 1937-05-11 |
Family
ID=6540424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31154/35A Expired GB465662A (en) | 1934-11-10 | 1935-11-11 | Manufacture of alkylene sulphides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB465662A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3933813A (en) * | 1972-01-14 | 1976-01-20 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler | Process for the production of mercaptoethyl containing compounds |
| US4536583A (en) * | 1983-08-01 | 1985-08-20 | International Flavors & Fragrances Inc. | Process for preparing mixtures containing 8,9-epithio-1-p-menthene |
-
1935
- 1935-11-11 GB GB31154/35A patent/GB465662A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3933813A (en) * | 1972-01-14 | 1976-01-20 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler | Process for the production of mercaptoethyl containing compounds |
| US4536583A (en) * | 1983-08-01 | 1985-08-20 | International Flavors & Fragrances Inc. | Process for preparing mixtures containing 8,9-epithio-1-p-menthene |
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