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GR26718B - METHOD FOR THE PREPARATION OF NEW SUBSTITUTED SUCKINIMIDES. - Google Patents

METHOD FOR THE PREPARATION OF NEW SUBSTITUTED SUCKINIMIDES.

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Publication number
GR26718B
GR26718B GR600126718A GR600126718A GR26718B GR 26718 B GR26718 B GR 26718B GR 600126718 A GR600126718 A GR 600126718A GR 600126718 A GR600126718 A GR 600126718A GR 26718 B GR26718 B GR 26718B
Authority
GR
Greece
Prior art keywords
general formula
group
denotes
preparation
substituted
Prior art date
Application number
GR600126718A
Other languages
Greek (el)
Original Assignee
Sandoz A.G.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sandoz A.G. filed Critical Sandoz A.G.
Priority to GR600126718A priority Critical patent/GR26718B/en
Publication of GR26718B publication Critical patent/GR26718B/en

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Abstract

έθοδος δια την παρασκευήν νέων υποκατεστημένων σουκινιμιδίων του γενικού τύπου Ι (βλέπε το φύλλον τύπων), εις τον οποίον τα R1 και R2 δύνανται να είναι τα αυτά ή διάφορα, και ανά εν εκ τούτων δηλούν εν άτομον υδρογόνου ή μίαν κατωτέραν αλκυλικήν ομάδα, διακρινομένη εκ τούτου, ότι μίαν υποκατεστημένην πιπεριδόνην-4 του γενικού τύπου ΙΙ, εις τον οποίον το R1' δηλοί μίαν κατωτέραν αλκυλικήν ομάδα ή μίαν βενζυλικήν ομάδα, φέρομεν εις αντίδρασιν με μίαν ένωσιν του γενικού τύπου ΙΙΙ, εις τον οποίον το Χ δηλοί την κυανικήν ομάδα ή μίαν ενδεχομένως ενεργώς μετατραπείσαν καρβοξυλικήν ομάδα, παρουσία ενός καταλύτου προκαλούντος την απόσπασιν ύδατος, προς παραγωγήν ενός πιπεριδυλιδενο-4-παραγώγου του γενικού τύπου IV, το παράγωγον τούτο μετατρέπομενδια προσθήκης υδροκυανικού οξέος εις μίαν ένωσιν του γενικού τύπου V, την ένωσιν ταύτην δι' υδρολύσεως, αποκαρβοξυλιώσεως και εστεροποιήσεως μετά μιας αλκανόλης μετατρέπομεν εις ένα διεστέρα του υποκατεστημένου ηλεκτρικού οξέος, του γενικού τύπου VI, τον παραγόμενον εστέρα φέρομεν εις αντίδρασιν με μίαν ένωσιν αζώτου του γενικού τύπου R2-NH2, εις τον οποίον το R2 έχει την ανωτέρω δοθείσαν σημασίαν,και εις περίπτωσιν καθ' ην το R2 δηλοί μίαν βενζυλικήν ομάδα, αποσπώμεν ταύτην αναγωγικώς, την δεπαραγομένην δευτεροταγή αμινομάδα υποβάλλομεν εις αλκυλίωσιν εάν τούτο είναι επιθυμητόν. A process for the preparation of novel substituted succinimides of general formula I (see Formula Sheet), in which R1 and R2 may be the same or different, each denoting a hydrogen atom or a lower alkyl group, distinguished by wherein a substituted piperidone-4 of general formula II, wherein R1 'denotes a lower alkyl group or a benzyl group, is reacted with a compound of general formula III, wherein X denotes the cyanide group. a potentially converted carboxylate group, in the presence of a catalyst causing the water to decompose, to produce a piperidylidene-4-derivative of general formula IV; decarboxylation and esterification after an alkanol is converted to a substituent of the substituted succinic acid of general formula VI, t The ester produced is reacted with a nitrogen compound of general formula R2-NH2, in which R2 has the above significance, and in the case where R2 denotes a benzyl group, thereby releasing the reductant in alkylation if this is desired.

GR600126718A 1960-03-23 1960-03-23 METHOD FOR THE PREPARATION OF NEW SUBSTITUTED SUCKINIMIDES. GR26718B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR600126718A GR26718B (en) 1960-03-23 1960-03-23 METHOD FOR THE PREPARATION OF NEW SUBSTITUTED SUCKINIMIDES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR600126718A GR26718B (en) 1960-03-23 1960-03-23 METHOD FOR THE PREPARATION OF NEW SUBSTITUTED SUCKINIMIDES.

Publications (1)

Publication Number Publication Date
GR26718B true GR26718B (en) 1964-09-26

Family

ID=36865039

Family Applications (1)

Application Number Title Priority Date Filing Date
GR600126718A GR26718B (en) 1960-03-23 1960-03-23 METHOD FOR THE PREPARATION OF NEW SUBSTITUTED SUCKINIMIDES.

Country Status (1)

Country Link
GR (1) GR26718B (en)

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