RO80949B1 - Process for the preparation of 2-amino-4, 6-dichloro-5-methylphenol - Google Patents
Process for the preparation of 2-amino-4, 6-dichloro-5-methylphenolInfo
- Publication number
- RO80949B1 RO80949B1 RO103763A RO10376381A RO80949B1 RO 80949 B1 RO80949 B1 RO 80949B1 RO 103763 A RO103763 A RO 103763A RO 10376381 A RO10376381 A RO 10376381A RO 80949 B1 RO80949 B1 RO 80949B1
- Authority
- RO
- Romania
- Prior art keywords
- dichloro
- methylphenol
- amino
- preparation
- hydroxy
- Prior art date
Links
- QDOGSLSGLUTSQL-UHFFFAOYSA-N 6-amino-2,4-dichloro-3-methylphenol Chemical compound CC1=C(Cl)C=C(N)C(O)=C1Cl QDOGSLSGLUTSQL-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 abstract 1
- VMBRJHMTAZXHES-UHFFFAOYSA-N 2,4-dichloro-3-methyl-6-nitrophenol Chemical compound CC1=C(Cl)C=C([N+]([O-])=O)C(O)=C1Cl VMBRJHMTAZXHES-UHFFFAOYSA-N 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu pentru prepararea 2-amino-4,6-dicloro-5-metilfenolului se supune sulfonarii cu acid clorsulfonic într-o hidrocarbura clorurata la o temperatura de 40...80 degree C, timp de 3...8h, acidul 1-hidroxi-4-clor-5-metil-2-silfonic obtinut se clorureaza, fara separare, cu clor gazos la temperatura 40...80 degree C, rezultînd acidul 1-hidroxi-5-metil-4,6-diclor-2-sulfonic care se nitreaza cu acid azotic dupa extractia acestuia cu apa, iar 2-nitro-4,6-diclor-5-metilfenolul obtinut se reduce în mediu alcalin cu ditionit de sodiu la temperatura cuprinsa între 50 si 95 degree C.The invention relates to a process for the preparation of 2-amino-4,6-dichloro-5-methylphenol is sulfonated with chlorosulfonic acid in a chlorinated hydrocarbon at a temperature of 40 ... 80 ° C for 3 ... 8h, the 1-hydroxy-4-chloro-5-methyl-2-sulfonic acid obtained is chlorinated without separation with gaseous chlorine at 40-80 ° C, resulting in 1-hydroxy- 6-dichloro-2-sulfonic acid nitrate which is nitrated with nitric acid after its extraction with water and the obtained 2-nitro-4,6-dichloro-5-methylphenol is reduced in alkaline medium with sodium dithionite at a temperature between 50 and 95 degree C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81103763A RO80949A2 (en) | 1981-03-20 | 1981-03-20 | PROCESS FOR PREPARING 2-AMINO-4,6-DICHLORE-5-METHYLPHENOL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81103763A RO80949A2 (en) | 1981-03-20 | 1981-03-20 | PROCESS FOR PREPARING 2-AMINO-4,6-DICHLORE-5-METHYLPHENOL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO80949B1 true RO80949B1 (en) | 1983-01-30 |
| RO80949A2 RO80949A2 (en) | 1983-02-01 |
Family
ID=20109728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO81103763A RO80949A2 (en) | 1981-03-20 | 1981-03-20 | PROCESS FOR PREPARING 2-AMINO-4,6-DICHLORE-5-METHYLPHENOL |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO80949A2 (en) |
-
1981
- 1981-03-20 RO RO81103763A patent/RO80949A2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO80949A2 (en) | 1983-02-01 |
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