DE29929C - Process for the preparation of phenyl cyanate - Google Patents
Process for the preparation of phenyl cyanateInfo
- Publication number
- DE29929C DE29929C DENDAT29929D DE29929DA DE29929C DE 29929 C DE29929 C DE 29929C DE NDAT29929 D DENDAT29929 D DE NDAT29929D DE 29929D A DE29929D A DE 29929DA DE 29929 C DE29929 C DE 29929C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- phenyl cyanate
- cyanate
- phenyl
- hcl
- 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 - Lifetime
Links
- CWHFDTWZHFRTAB-UHFFFAOYSA-N phenyl cyanate Chemical compound N#COC1=CC=CC=C1 CWHFDTWZHFRTAB-UHFFFAOYSA-N 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 claims description 4
- -1 chlorocarbon oxide Aniline salts Chemical class 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- TZPRTRNABISURJ-UHFFFAOYSA-N [Cl].O=[C] Chemical compound [Cl].O=[C] TZPRTRNABISURJ-UHFFFAOYSA-N 0.000 description 1
- 125000002490 anilino group Chemical class [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C265/00—Derivatives of isocyanic acid
- C07C265/12—Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
KLASSE 22: Farbstoffe,= Firnisse, Lacke.CLASS 22: dyes, = varnishes, lacquers.
CHEMISCHE FABRIK vormals HOFMANN & SCHOETENSACK in LUDWIGSHAFEN a. Rh.CHEMISCHE FABRIK formerly HOFMANN & SCHOETENSACK in LUDWIGSHAFEN a. Rh.
Verfahren zur Darstellung von Phenylcyanat.Process for the preparation of phenyl cyanate.
Patentirt im Deutschen Reiche vom 20. Mai 1884 ab.Patented in the German Empire on May 20, 1884.
Carbanilid zerfällt bei höherer Temperatur unter der Einwirkung von Chlorkohlenoxyd in Phenylcyanat und Salzsäure; die Umsetzung erfolgt nach der Gleichung:Carbanilide decomposes at higher temperatures under the action of chlorine carbon oxide into Phenyl cyanate and hydrochloric acid; the implementation takes place according to the equation:
+ c0 a =2ffa+2Q ZT5 IV: CO. + c0 a = 2 ffa + 2 Q ZT 5 IV: CO.
H5 H 5
Dieselbe Umlagerung erfahren die Anilinsalze, z. B.:The aniline salts experience the same rearrangement, e.g. B .:
C6 B5 JVH2 HCl + CO Ck = 3 HCl C 6 B 5 JVH 2 HCl + CO Ck = 3 HCl
+ C5H5IV: CO.+ C 5 H 5 IV: CO.
Zur Darstellung des Phenylcyanats im Grofsen werden die erwähnten Körper in eisernen Kesseln zum Schmelzen gebracht, und wird bei einer Temperatur zwischen 2000 und 3000 Chlorkohlenoxyd übergeleitet.To illustrate the great men phenyl cyanate in the body mentioned in iron boilers are caused to melt, and is passed at a temperature between 200 0 and 300 0 Chlorkohlenoxyd.
In dem Salzsäurestrom geht das Cyanat in berechneter Menge über, dasselbe ist nach einmaligem Destilliren von konstantem Siedepunkt 16 30.In the hydrochloric acid stream, the cyanate passes over in a calculated amount; after a single distillation it is 16 3 0 at a constant boiling point.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29929C true DE29929C (en) |
Family
ID=306076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT29929D Expired - Lifetime DE29929C (en) | Process for the preparation of phenyl cyanate |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29929C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1154090B (en) * | 1958-04-23 | 1963-09-12 | Bayer Ag | Process for the preparation of aliphatic isocyanates |
| US3275669A (en) * | 1962-09-10 | 1966-09-27 | Upjohn Co | Preparation of organic isocyanates from n, n'-disubstituted allophanyl chlorides |
| US3410887A (en) * | 1965-01-29 | 1968-11-12 | Upjohn Co | Process for preparing aliphatic isocyanates |
-
0
- DE DENDAT29929D patent/DE29929C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1154090B (en) * | 1958-04-23 | 1963-09-12 | Bayer Ag | Process for the preparation of aliphatic isocyanates |
| US3275669A (en) * | 1962-09-10 | 1966-09-27 | Upjohn Co | Preparation of organic isocyanates from n, n'-disubstituted allophanyl chlorides |
| US3410887A (en) * | 1965-01-29 | 1968-11-12 | Upjohn Co | Process for preparing aliphatic isocyanates |
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