GR23479B - METHOD FOR THE PREPARATION OF SUBSTITUTED HYDRACIC ACIDS. - Google Patents

METHOD FOR THE PREPARATION OF SUBSTITUTED HYDRACIC ACIDS.

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Publication number
GR23479B
GR23479B GR580123479A GR580123479A GR23479B GR 23479 B GR23479 B GR 23479B GR 580123479 A GR580123479 A GR 580123479A GR 580123479 A GR580123479 A GR 580123479A GR 23479 B GR23479 B GR 23479B
Authority
GR
Greece
Prior art keywords
substituted
preparation
acids
saturated
straight
Prior art date
Application number
GR580123479A
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 GR580123479A priority Critical patent/GR23479B/en
Publication of GR23479B publication Critical patent/GR23479B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

έθοδος δια την παρασκευήν νέων υποκατεστημένων υδροξιδίων οξέων του γενικού τύπου: R1-CO-NH-NH-R2 εις τον οποίον το R1 παριστά εν δι' αλογόνου, υδροξυομάδων, ή δια αλκοξύ-ομάδων ή αλκυλομερκαπτο-ομάδων περιεχουσών έως 4 άτομα άνθρακος υποκατεστημένον υπόλοιπον ενός κεκορεσμένου ή ακορέστου, μετ' ευθείας ή διακλαδισμένης αλύσου αλειφατικού υδρογονάνθρακος, το δε R2 παριστά εν αραλκυλικόν υπόλοιπονή το υπόλοιπον ενός αλικυκλικού ή κεκορεσμένου, μετ' ευθείας ή διακλαδισμένης αλύσου αλειφατικούυδρογονάνθρακος περιέχοντος έως ο άτομα άνθρακος, ως επίσης των αλάτων των υδροξιδίων οξέων τούτων, διακρινομένη εκ τούτου, ότι η παρασκευή των ενώσεων υδροξιδίων οξέων τούτων επιτελείται είτε δια συμπυκνώσεως ενός οξέος του γενικού τύπου R1-COOH μεμίανυποκατεστημένην υδραζίνη του γενικού τύπου Η2Ν-ΝΗ-R2, εις τους οποίους τα R1 και R2 έχουν την ανωτέρω δοθείσαν σημασίαν, παρουσία ενός Ν,Ν'-δις-υποκατεστημένου καρβοδιϊμιδίου, είτε κατά γνωστάς μεθόδους και ενδεχομένως δια μετατροπής του ληφθέντος ελευθέρου υδραζιδίου οξέων εις εν άλας. Method for the preparation of new substituted hydroxides of the general formula: R1-CO-NH-NH-R2 wherein R 1 represents halogen, hydroxy groups, or alkoxy groups or alkylmercapto groups containing up to 4 carbon atoms substituted with the remainder of a saturated or unsaturated, straight or branched chain chain; the residue of an alicyclic or saturated, straight or branched chain aliphatic hydrocarbon containing up to the carbon atoms, as well as the salts of their hydroxide acids, wherein the preparation of the compounds of a hydroxy acid R1-COOH semi-substituted hydrazine of general formula H2N-NH-R2, in which R1 and R2 have the above significance, in the presence of an N, N'-bis-substituted carbodiimide, either by known methods and optionally by conversion thereto. hydrazide of acids in a salt.

GR580123479A 1958-07-02 1958-07-02 METHOD FOR THE PREPARATION OF SUBSTITUTED HYDRACIC ACIDS. GR23479B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR580123479A GR23479B (en) 1958-07-02 1958-07-02 METHOD FOR THE PREPARATION OF SUBSTITUTED HYDRACIC ACIDS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR580123479A GR23479B (en) 1958-07-02 1958-07-02 METHOD FOR THE PREPARATION OF SUBSTITUTED HYDRACIC ACIDS.

Publications (1)

Publication Number Publication Date
GR23479B true GR23479B (en) 1962-07-23

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ID=36864754

Family Applications (1)

Application Number Title Priority Date Filing Date
GR580123479A GR23479B (en) 1958-07-02 1958-07-02 METHOD FOR THE PREPARATION OF SUBSTITUTED HYDRACIC ACIDS.

Country Status (1)

Country Link
GR (1) GR23479B (en)

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