GR20563B - METHOD FOR THE PRODUCTION OF THIAXANTHENE SUBSTITUTES IN THE 9-POSITION. - Google Patents
METHOD FOR THE PRODUCTION OF THIAXANTHENE SUBSTITUTES IN THE 9-POSITION.Info
- Publication number
- GR20563B GR20563B GR590120563A GR590120563A GR20563B GR 20563 B GR20563 B GR 20563B GR 590120563 A GR590120563 A GR 590120563A GR 590120563 A GR590120563 A GR 590120563A GR 20563 B GR20563 B GR 20563B
- Authority
- GR
- Greece
- Prior art keywords
- halogen
- formula
- thiaxanthene
- substitutes
- production
- Prior art date
Links
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
έθοδος διά την παρασκευήν βασικών υποκατεστημένωνθειοξανθενίων του τύπου (Ι) είς τον οποίον το R δηλοί υδρογόνον, αλογόνον, ή μίαν ομάδα μεθοξυ, ώς και των διά προσθήκης οξέος αλάτων αυτών, διακρινομένη εκ τούτου, ότι ενώσεις του τύπου (ΙΙ) είς τονοποίον το R έχει την ανωτέρω δοθείσαν σημασίαν, υποβάλλομεν είς αντίδρασιν με ένα παράγοντα αφυδατώσεως την δέ προκύπτουσαν ακόρεστον ένωσιν υποβάλλομεν είς αντίδρασιν με ένα παράγοντα μεθυλιώσεως, ήμε ένα παράγοντα αφυδατώσεως και μεθυλιώσεως ταυτοχρόνως, μεθ'ο εκ του μίγματος της αντιδράσεως, τοσχηματισθέν θειαξανθένιον απομονούται υπό την μορφήν ταύτην ή υπό την μορφήν ενός διά προσθήκης οξέος άλατος και είς περίπτωσιν καθ' ήν το R δηλοί αλογόνον η μίαν ομάδα μεθοξυ, το trans ισομερές απομονούται διά κλασματικής κρυσταλλώσεως. A process for the preparation of basic substituted thioxanthenes of formula (I) in which R denotes hydrogen, halogen, or a group of methoxy, as well as their acid addition salts, thereby distinguishing that compounds of formula (II) Having the above importance, reacting with a dehydrating agent does not result in an unsaturated compound reacting with a methylating agent, or a dehydrating and methylating agent being simultaneously or in the form of an acid addition salt and in the case where R is halogen or a methoxy group, the trans isomer is isolated by fractional crystallization.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR590120563A GR20563B (en) | 1959-04-25 | 1959-04-25 | METHOD FOR THE PRODUCTION OF THIAXANTHENE SUBSTITUTES IN THE 9-POSITION. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR590120563A GR20563B (en) | 1959-04-25 | 1959-04-25 | METHOD FOR THE PRODUCTION OF THIAXANTHENE SUBSTITUTES IN THE 9-POSITION. |
Publications (1)
Publication Number | Publication Date |
---|---|
GR20563B true GR20563B (en) | 1960-02-25 |
Family
ID=36861642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR590120563A GR20563B (en) | 1959-04-25 | 1959-04-25 | METHOD FOR THE PRODUCTION OF THIAXANTHENE SUBSTITUTES IN THE 9-POSITION. |
Country Status (1)
Country | Link |
---|---|
GR (1) | GR20563B (en) |
-
1959
- 1959-04-25 GR GR590120563A patent/GR20563B/en unknown
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