RO81969B1 - Process for the preparation of cetylpyridinium chloride - Google Patents
Process for the preparation of cetylpyridinium chlorideInfo
- Publication number
- RO81969B1 RO81969B1 RO105102A RO10510281A RO81969B1 RO 81969 B1 RO81969 B1 RO 81969B1 RO 105102 A RO105102 A RO 105102A RO 10510281 A RO10510281 A RO 10510281A RO 81969 B1 RO81969 B1 RO 81969B1
- Authority
- RO
- Romania
- Prior art keywords
- chloride
- purified
- preparation
- cetylpyridinium chloride
- pyridine
- Prior art date
Links
- 229960001927 cetylpyridinium chloride Drugs 0.000 title abstract 2
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 abstract 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 abstract 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 abstract 2
- CLWAXFZCVYJLLM-UHFFFAOYSA-N 1-chlorohexadecane Chemical compound CCCCCCCCCCCCCCCCCl CLWAXFZCVYJLLM-UHFFFAOYSA-N 0.000 abstract 1
- OBFSQMXGZIYMMN-UHFFFAOYSA-N 3-chloro-2-hexadecylpyridine Chemical compound CCCCCCCCCCCCCCCCC1=NC=CC=C1Cl OBFSQMXGZIYMMN-UHFFFAOYSA-N 0.000 abstract 1
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 abstract 1
- 239000012346 acetyl chloride Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 229960000541 cetyl alcohol Drugs 0.000 abstract 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 229960003750 ethyl chloride Drugs 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Pyridine Compounds (AREA)
Abstract
Inventia se refera la un procedeu de preparare a clorurii de cetilpiridiniu din alcool cetilic, clorura de tionil si piridina în care la faza de obtinere a clorurii de cetil se adauga dimetilformamida în cantitati catalitice si se purifica clorura de etil prin spalari repetate cu solutie 20% de clorura de sodiu la temperatura de reflux, dupa care se efectueaza condensarea clorurii de cetil astfel purificata cu piridina la presiune normala si, în cazul în care produsul obtinut se foloseste în scopuri farmaceutice, solutia apoasa de clorura de cetilpiridina se neutralizeaza cu hidroxid de sodiu 0,1 n, la pH=5...6 si se recristalizeaza din apa. The invention relates to a process for the preparation of cetylpyridinium chloride from cetyl alcohol, thionyl chloride and pyridine wherein in the stage of obtaining the cetyl chloride the dimethylformamide is added in catalytic amounts and the ethyl chloride is purified by repeated washing with 20% of sodium chloride at reflux temperature, followed by condensation of the purified acetyl chloride purified with pyridine under normal pressure and, if the product obtained is used for pharmaceutical purposes, the aqueous solution of the cetylpyridine chloride is neutralized with sodium hydroxide 0.1 n at pH = 5 ... 6 and recrystallized from water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81105102A RO81969A2 (en) | 1981-08-14 | 1981-08-14 | PROCESS FOR THE PREPARATION OF CETYLPYRIDINIUM CHLORIDE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81105102A RO81969A2 (en) | 1981-08-14 | 1981-08-14 | PROCESS FOR THE PREPARATION OF CETYLPYRIDINIUM CHLORIDE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81969B1 true RO81969B1 (en) | 1983-06-30 |
| RO81969A2 RO81969A2 (en) | 1983-07-07 |
Family
ID=20110341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO81105102A RO81969A2 (en) | 1981-08-14 | 1981-08-14 | PROCESS FOR THE PREPARATION OF CETYLPYRIDINIUM CHLORIDE |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81969A2 (en) |
-
1981
- 1981-08-14 RO RO81105102A patent/RO81969A2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO81969A2 (en) | 1983-07-07 |
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