GR23283B - METHOD OF PREPARATION OF NEW ENTOLOGICAL ETHERS OF 3 - KETO - 5A - ANDROSTANIA. - Google Patents
METHOD OF PREPARATION OF NEW ENTOLOGICAL ETHERS OF 3 - KETO - 5A - ANDROSTANIA.Info
- Publication number
- GR23283B GR23283B GR610123283A GR610123283A GR23283B GR 23283 B GR23283 B GR 23283B GR 610123283 A GR610123283 A GR 610123283A GR 610123283 A GR610123283 A GR 610123283A GR 23283 B GR23283 B GR 23283B
- Authority
- GR
- Greece
- Prior art keywords
- keto
- ethers
- hydrogen
- entological
- androstania
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
μέθοδος σχηματισμού ενολικών αιθέρων εχόντων τονεπόμενον τύπον: [*] ένθα R αντιπροσωπεύει υδρογονανθρακικήν ρίζαν ενέχουσαν από πέντε έως δέκα οκτώ, συμπεριλαμβανομένου, άτομα άνθρακος, R1 και R2 αντιπροσωπεύουν υδρογόνον ή μεθύλίόν και R3 αντιπροσωπεύει κετονικόν άτομον οξυγόνου ή μίαν ομάδα [*], ένθα Χ είναι υδρογόνον ή το ακυλικόν υπόλειμμα ενός αλκανοϊκού οξέος και R4 αντιπροσωπεύει υδρογόνον ή μίαν ρίζαν κατωτέρου υδρογονάνθρακος ενέχοντος από ένα έως τρία, συμπεριλαμβανομένου, άτομα άνθρακος, ήτις περιλαμβάνει υποβολήν ενός 3-αιθυλικούενολαιθέρος ενός Δ4-3-κετο-ανδροστενίου του τύπου: [*] ένθα R1, R2 και R3 είναι ως ορίζονται ανωτέρω, εις μίαν αντίδρασιν ανταλλαγής μετά μιας αλκοόλης του τύπου ROH, ένθα R έχει την ιδίαν έννοιαν ωςορίζεται ανωτέρω, παρουσία .................................................... εις μίαν καταλυτικήν υδρογόνωσιν δια μιας υπολογισμένης ............ υδρογόνου, προς υδρογόνωσιν του ενός μόνον δεσμού του Δ...... ..... συστήματος. method of forming enol ethers having the following formula: [*] wherein R represents a hydrocarbon radical comprising from five to eighteen, including carbon atoms; R1 and R2 represent hydrogen or methyl; and R3 represents a ketone oxygen atom or a group of represents a hydrogen or a lower hydrocarbon radical comprising from one to three, including carbon atoms, thus comprising submitting a 3-ethyl enol ether of a Δ4-3-keto-androstene of the formula: [*] wherein R1, R2 and R3 are as defined above, in an exchange reaction with an alcohol of the ROH type, wherein R has the same meaning as defined above, in the presence of .................. .................................. to a catalytic hydrogenation by a calculated ......... ... hydrogen, to hydrogenate a single bond of the D ...... ..... system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR610123283A GR23283B (en) | 1961-10-10 | 1961-10-10 | METHOD OF PREPARATION OF NEW ENTOLOGICAL ETHERS OF 3 - KETO - 5A - ANDROSTANIA. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR610123283A GR23283B (en) | 1961-10-10 | 1961-10-10 | METHOD OF PREPARATION OF NEW ENTOLOGICAL ETHERS OF 3 - KETO - 5A - ANDROSTANIA. |
Publications (1)
Publication Number | Publication Date |
---|---|
GR23283B true GR23283B (en) | 1962-06-11 |
Family
ID=36864075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR610123283A GR23283B (en) | 1961-10-10 | 1961-10-10 | METHOD OF PREPARATION OF NEW ENTOLOGICAL ETHERS OF 3 - KETO - 5A - ANDROSTANIA. |
Country Status (1)
Country | Link |
---|---|
GR (1) | GR23283B (en) |
-
1961
- 1961-10-10 GR GR610123283A patent/GR23283B/en unknown
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