ES399674A1 - Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES399674A1 ES399674A1 ES399674A ES399674A ES399674A1 ES 399674 A1 ES399674 A1 ES 399674A1 ES 399674 A ES399674 A ES 399674A ES 399674 A ES399674 A ES 399674A ES 399674 A1 ES399674 A1 ES 399674A1
- Authority
- ES
- Spain
- Prior art keywords
- methyl
- indazole
- tetrahydro
- translation
- amine
- 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
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Process for the preparation of an N-methylated indazole amine, characterized by transforming 3-amino-2-methyl-4,5,6,7-tetrahydro-indazole into 3-methylamino-2-methyl-4,5., 6,7-tetrahydro-indazole, by a first transformation of 3-amino-2-methyl-4,5,6,7-tetrahydro-indazole into its corresponding para-toluenesulfonamide by means of para-toluenesulfonyl chloride, successively its sodium salt, which with methyl sulfate, provides the 3-N-methyl p-toluenesulfonamide of 2-methyl-4,5,6,7-tetrahydro-indazole and finally hydrolyzing the N-methylated sulfonamide with concentrated sulfuric acid and acid glacial acetic acid, in order to obtain 3-methylamino-2-methyl-4,5,6,7-tetrahydro-indazole sulphate, preceded by separating the corresponding base from the sulfate, neutralizing, alkalinizing and successively extracting with ether. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES399674A ES399674A1 (en) | 1972-02-11 | 1972-02-11 | Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES399674A ES399674A1 (en) | 1972-02-11 | 1972-02-11 | Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
Publication Number | Publication Date |
---|---|
ES399674A1 true ES399674A1 (en) | 1974-11-16 |
Family
ID=8460275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES399674A Expired ES399674A1 (en) | 1972-02-11 | 1972-02-11 | Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES399674A1 (en) |
-
1972
- 1972-02-11 ES ES399674A patent/ES399674A1/en not_active Expired
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