GB1178432A - Process for Preparing Phosphorus-Tri-Isocyanate and Phosphoryl-Tri-Isocyanate. - Google Patents
Process for Preparing Phosphorus-Tri-Isocyanate and Phosphoryl-Tri-Isocyanate.Info
- Publication number
- GB1178432A GB1178432A GB213867A GB213867A GB1178432A GB 1178432 A GB1178432 A GB 1178432A GB 213867 A GB213867 A GB 213867A GB 213867 A GB213867 A GB 213867A GB 1178432 A GB1178432 A GB 1178432A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isocyanate
- tri
- phosphorus
- phosphoryl
- reaction
- 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
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/20—Thiocyanic acid; Salts thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/26—Phosphorus; Compounds thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1,178,432. Phosphorus and phosphoryl triisocyanate. FARBWERKE HOECHST A.G. 16 Jan., 1967 [15 Jan., 1966], No. 2138/67. Heading C1A. Phosphorus tri-isocyanate is prepared by reacting phosphorus trichloride with an inorganic cyanate at an elevated temperature of 40‹ to 180‹ C. in a chlorohydrocarbon solvent having a flash point above 30‹ C. and a boiling point in the range of 40‹ to 180‹ C., with the addition of an organic nitrile as a catalyst. The solvent may be a perchlorohydrocarbon such as carbon tetrachloride or perchloroethylene. The catalyst is preferably an aliphatic nitrile. The phosphorus tri-isocyanate may be oxidized to phosphoryl tri-isocyanate and this is achieved by removing inorganic chloride, formed during the reaction, from the reaction product and oxidizing the reaction product with sulphur trioxide at - 30‹ to 10‹ C. In an example, phosphorus trichloride and sodium cyanate are reacted in the presence of acetonitrile, in carbon tetrachloride. On completion of tins reaction, sodium chloride is removed from the reaction products and the solution of phosphorus tri-isocyanate is then oxidized with sulphur trioxide to phosphoryl tri-isocyanate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF48176A DE1285988B (en) | 1966-01-15 | 1966-01-15 | Process for the preparation of phosphoryl tri-isocyanate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1178432A true GB1178432A (en) | 1970-01-21 |
Family
ID=7102090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB213867A Expired GB1178432A (en) | 1966-01-15 | 1967-01-16 | Process for Preparing Phosphorus-Tri-Isocyanate and Phosphoryl-Tri-Isocyanate. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1285988B (en) |
| FR (1) | FR1507959A (en) |
| GB (1) | GB1178432A (en) |
-
1966
- 1966-01-15 DE DEF48176A patent/DE1285988B/en active Pending
-
1967
- 1967-01-16 GB GB213867A patent/GB1178432A/en not_active Expired
- 1967-01-16 FR FR91245A patent/FR1507959A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1507959A (en) | 1967-12-29 |
| DE1285988B (en) | 1969-01-02 |
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