GR16973B - METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS. - Google Patents

METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS.

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Publication number
GR16973B
GR16973B GR560116973A GR560116973A GR16973B GR 16973 B GR16973 B GR 16973B GR 560116973 A GR560116973 A GR 560116973A GR 560116973 A GR560116973 A GR 560116973A GR 16973 B GR16973 B GR 16973B
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GR
Greece
Prior art keywords
dialkyl
residues
reacted
derivatives
alkyl
Prior art date
Application number
GR560116973A
Other languages
Greek (el)
Original Assignee
J. R. Geigy 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 J. R. Geigy A.G. filed Critical J. R. Geigy A.G.
Priority to GR560116973A priority Critical patent/GR16973B/en
Publication of GR16973B publication Critical patent/GR16973B/en

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Abstract

έθοδος δια την παρασκευήν παραγώγων των 1,3-διαλκυλο-ξανθινών, διακρινομένη εκ τούτου, ότι παρασκευάζομεν ενώσεις του γενικού τύπου: [*] ένθα τα R1 και R2 σημαίνουν αλκυλικά ή αλκενυλικά υπόλοιπα, R3και R4 σημαίνουν υδρογόνον ή αλκυλικά ή αλκενυλικά υπόλοιπα, χαμηλού μοριακού βάρους, ή ομού με το άτομον του αζώτου, και εν αλκυλενιμινικόν υπόλοιπον μετά 5-6 δακτυλιοειδών μελών ή το μορφολινικόν υπόλοιπον, R5 σημαίνει υδρογόνον ή εν αλκυλικόν υπόλοιπον χαμηλού μοριακού βάρους και Χ δηλοί οξυγόνον ή θείον, δια τούτου, ότι παράγωγα του καρβαμινικού οξέος, ικανά προς αντίδρασιν, άτινα εις το άζωτον περιέχουν τα υπόλοιπα R3 και R4 ή μόνον το R3, ήτοι τα αλογονίδια του καρβαμινικού οξέος ή αι ισοκυανικαί ενώσεις, φέρονται εις αντίδρασιν μετά τωνδια των μετάλλων των αλκαλίων ενώσεων των 1,3-διαλκυλο-ξανθινών του γενικού τύπου: [*] ή μετ' αυτώντούτων των 1,3-διαλκυλο-ξανθινών, ή δια τούτου, ότι παράγωγα του ανθρακικού οξέος ικανά προς αντίδρασιν ως ο εστήρ του χλωρομυρμηκικού οξέος ή το φωσγένιον, φέρονται εις αντίδρασιν μετά 1,3-διαλκυλοξανθινών του ανωτέρω γενικού τύπου, ή των μετά μετάλλων των αλκαλίων ενώσεων, τούτων, τα δε ούτω λαμβανόμενα, δια καρβονικού οξέος υποκατεστημένα εις την 7-θέσιν, παράγωγα των 1,3-διαλκυλο-ξανθινών φέρονται εις αντίδρασιν μετ' αμινών αίτινες περιέχουντα υπόλοιπα R3 και R4. Process for the preparation of 1,3-dialkyl-xanthine derivatives, characterized in that compounds of the general formula are prepared: [*] in them R1 and R2 mean alkyl or alkenyl residues, R 3 and R 4 mean hydrogen or alkyl or alkenyl residues, of low molecular weight, or together with the nitrogen atom, and in alkyleneimine residue after 5-6 annular members or morpholine residue, R5 stands for hydrogen or alkyl moiety of low molecular weight and X denotes oxygen or sulfur, Therefore, reactive carbamic acid derivatives containing nitrogen in nitrogen contain the residues R3 and R4 or only R3, i.e. carbamic acid halides or isocyanates, are reacted with metal ions while 1,3-dialkyl-xanthines of general formula: [*] or with those of 1,3-dialkyl-xanthines, or thereby, that carbonate derivatives capable of reacting as the ester of chloroformic acid or phosgene, are reacted with 1,3-dialkyloxanthines of the above type or of the alkali metal compounds of these, thus obtained, by carboxylic acid substituted at the 7-position, 1,3-dialkyl-xanthine derivatives are reacted with amine-containing amines containing residues R3 and R4.

GR560116973A 1956-01-26 1956-01-26 METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS. GR16973B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR560116973A GR16973B (en) 1956-01-26 1956-01-26 METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR560116973A GR16973B (en) 1956-01-26 1956-01-26 METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS.

Publications (1)

Publication Number Publication Date
GR16973B true GR16973B (en) 1956-06-01

Family

ID=36858231

Family Applications (1)

Application Number Title Priority Date Filing Date
GR560116973A GR16973B (en) 1956-01-26 1956-01-26 METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS.

Country Status (1)

Country Link
GR (1) GR16973B (en)

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