GR23478B - METHOD FOR MANUFACTURING NEW PRODUCERS OF HYDRAZINE OF NICOTINIC ACID. - Google Patents

METHOD FOR MANUFACTURING NEW PRODUCERS OF HYDRAZINE OF NICOTINIC ACID.

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Publication number
GR23478B
GR23478B GR580123478A GR580123478A GR23478B GR 23478 B GR23478 B GR 23478B GR 580123478 A GR580123478 A GR 580123478A GR 580123478 A GR580123478 A GR 580123478A GR 23478 B GR23478 B GR 23478B
Authority
GR
Greece
Prior art keywords
nicotinic acid
hydrazine
general formula
manufacturing new
new producers
Prior art date
Application number
GR580123478A
Other languages
Greek (el)
Original Assignee
F. Hoffmann - La Roche & Co. 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 F. Hoffmann - La Roche & Co. A.G. filed Critical F. Hoffmann - La Roche & Co. A.G.
Priority to GR580123478A priority Critical patent/GR23478B/en
Publication of GR23478B publication Critical patent/GR23478B/en

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Abstract

έθοδος δια την παρασκευήν νένων παραγώγων υδροζιδίων του νικοτινικού οξέος και των αλάτων αυτών, διακρινομένη εκ τούτου, ότι ενώσεις του γενικού τύπου: [*] εις τον οποίον το R1 δηλοί υδρογόνον ή μεθύλιον, το δε R2 δηλοί εν υπόλοιπον μη αρωματικώνυδρογονανθράκων μετά 2-7 ατόμων άνθρακος, ως και τα άλατα τούτων, παρασκευάζομεν είτε δια συμπυκνώσεως ενός οξέος του γενικού τύπου: [*] ομού με μίαν υποκατεστημένην υδραζίνην του γενικού τύπου: Η2Ν-ΝΗ-R2 εις τον οποίον τα R1 και R2 έχουν την ανωτέρω δοθείσαν σημασίαν, παρουσία ενός καρβοδιϊμιδίου και ενδεχομένως μετατροπής εις εν άλας, είτε κατά γνωστάς μεθόδους. process for the preparation of derivatives of nicotinic acid hydrosides and their salts, characterized in that compounds of general formula: [*] wherein R1 is hydrogen or methyl and R2 is residual non-aromatic hydrocarbons after 2-7 carbon atoms and their salts, prepared either by concentrating an acid of general formula: [*] together with a substituted hydrazine of the general formula: H2N-NH-R2 wherein R1 and R2 have the above significance, in the presence of a carbodiimide and possibly conversion to a salt, or by known methods.

GR580123478A 1958-04-04 1958-04-04 METHOD FOR MANUFACTURING NEW PRODUCERS OF HYDRAZINE OF NICOTINIC ACID. GR23478B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR580123478A GR23478B (en) 1958-04-04 1958-04-04 METHOD FOR MANUFACTURING NEW PRODUCERS OF HYDRAZINE OF NICOTINIC ACID.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR580123478A GR23478B (en) 1958-04-04 1958-04-04 METHOD FOR MANUFACTURING NEW PRODUCERS OF HYDRAZINE OF NICOTINIC ACID.

Publications (1)

Publication Number Publication Date
GR23478B true GR23478B (en) 1962-07-23

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ID=36864753

Family Applications (1)

Application Number Title Priority Date Filing Date
GR580123478A GR23478B (en) 1958-04-04 1958-04-04 METHOD FOR MANUFACTURING NEW PRODUCERS OF HYDRAZINE OF NICOTINIC ACID.

Country Status (1)

Country Link
GR (1) GR23478B (en)

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