GR22556B - METHOD FOR THE MANUFACTURE OF PYRAZONE PRODUCERS. - Google Patents

METHOD FOR THE MANUFACTURE OF PYRAZONE PRODUCERS.

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Publication number
GR22556B
GR22556B GR580122556A GR580122556A GR22556B GR 22556 B GR22556 B GR 22556B GR 580122556 A GR580122556 A GR 580122556A GR 580122556 A GR580122556 A GR 580122556A GR 22556 B GR22556 B GR 22556B
Authority
GR
Greece
Prior art keywords
general formula
pyrazone
producers
manufacture
alkyl
Prior art date
Application number
GR580122556A
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 GR580122556A priority Critical patent/GR22556B/en
Publication of GR22556B publication Critical patent/GR22556B/en

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

έθοδος δια την παρασκευήν παραγώγων της πυραζολόνης του γενικού τύπου Τύπος Ι, εις τον οποίον το R1δηλοί εν κατώτερον αλκυλιον και το R2 δηλοί υδρογόνον ή κατώτερον αλκύλιον, διακρινομένη εκ τούτου,ότι τας πιπεριδυλο-4-υδραζίνας του γενικού τύπουΤύπος ΙΙ εις τον οποίον το R1 έχει την ανωτέρω δοθείσαν σημασίαν φέρομεν εις αντίδρασιν μετά εστέρων του β-αλογονο-α-αλκυλο-πινναμωμικού οξέος, του γενικού τύπου ΙΙΙ,, εις τον οποίον το R2έχει την ανωτέρω δοθείσαν σημασίαν το Hal είναι χλώριον ή βρώμιον, το δε R3 είναι μία κατωτέρα αλκυλική ομάς.A process for the preparation of pyrazolone derivatives of the general formula Formula I, wherein R 1 denotes lower alkyl and R 2 denotes hydrogen or lower alkyl, thereby distinguishing that the piperidyl-4-hydrazines of general formula R 1 in Formula I has the above importance when reacted with esters of β-halo-α-alkyl-pinamic acid, of general formula III, wherein R2 has the above importance; Hal is chlorine or bromine, and R3 is a lower one. alkyl group.

GR580122556A 1958-10-04 1958-10-04 METHOD FOR THE MANUFACTURE OF PYRAZONE PRODUCERS. GR22556B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR580122556A GR22556B (en) 1958-10-04 1958-10-04 METHOD FOR THE MANUFACTURE OF PYRAZONE PRODUCERS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR580122556A GR22556B (en) 1958-10-04 1958-10-04 METHOD FOR THE MANUFACTURE OF PYRAZONE PRODUCERS.

Publications (1)

Publication Number Publication Date
GR22556B true GR22556B (en) 1961-11-30

Family

ID=36864690

Family Applications (1)

Application Number Title Priority Date Filing Date
GR580122556A GR22556B (en) 1958-10-04 1958-10-04 METHOD FOR THE MANUFACTURE OF PYRAZONE PRODUCERS.

Country Status (1)

Country Link
GR (1) GR22556B (en)

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