CH162356A - Method for the preparation of a strongly basic porphine. - Google Patents

Method for the preparation of a strongly basic porphine.

Info

Publication number
CH162356A
CH162356A CH162356DA CH162356A CH 162356 A CH162356 A CH 162356A CH 162356D A CH162356D A CH 162356DA CH 162356 A CH162356 A CH 162356A
Authority
CH
Switzerland
Prior art keywords
porphine
strongly basic
preparation
new
basic porphine
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Chem Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH162356A publication Critical patent/CH162356A/en

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Description

  

  Verfahren zur Darstellung eines starkbasischen     Porphins.       Das vorliegende Verfahren     betrifft    die Dar  stellung eines starkbasischen     Porphins    und  ist dadurch gekennzeichnet, dass man     Phyllo-          porphyrinmonomethylester    mit     Diäthylamino-          äthylendiamin    behandelt.  



  <I>Beispiel:</I>  1     gr        Phylloporphyrinmonomethylester    wird  zusammen mit 5 cm'     Diäthylaminoäthylendi-          amin    in der Silberhülse im     Einschlussrohr     5     Stunden    lang auf<B>1800</B> erhitzt, 'wobei die  Bildung des neuen     Porphins    unter Abspal  tung des Methylalkohols stattfindet. Der Rohr  inhalt wird mit Chloroform aufgenommen,  filtriert und unter Zusatz von Methanol ein  geengt, bis der     Ohloroformgeruch    verschwun  den ist.

   Dann kristallisiert das Reaktions  produkt in schönen prismatischen Nadeln  vom     korr.        Smp.    235 0     (unzersetzt)    aus. Zur  Analyse wurde das Präparat nach mehrfacher       Umkristallisation    aus einem Gemisch von  Chloroform und Methanol im Hochvakuum  bei 25 0 zur Gewichtskonstanz getrocknet.  



       Ber.        für        CSSH80N60        C        75,19        %        .H        8,31%          ;Gef.        C        75,04%        H        7,87%     Das neue starkbasische     Porphin    stellt  einen dunkelrotbraunen Farbstoff dar, dessen         Basizität    so gross ist, dass er einer ätherischen  Lösung mit beliebig schwachen Säuren quan  titativ entnommen werden kann.

   Die Lösung  seiner Salze mit starken Säuren in Wasser  reagiert neutral und zeigt     Neutralspektrum.     



  Die Analyse bestätigt das Vorliegen eines  von     Phylloporphyrinester-verschiedenen,    neuen       Porphins.  



  Method for the preparation of a strongly basic porphine. The present method relates to the presentation of a strongly basic porphine and is characterized in that phylloporphyrin monomethyl ester is treated with diethylamino-ethylenediamine.



  <I> Example: </I> 1 gram of phylloporphyrin monomethyl ester is heated to <B> 1800 </B> for 5 hours together with 5 cm of diethylaminoethylenediamine in the silver sleeve in the containment tube, with the formation of the new porphine with cleavage of methyl alcohol takes place. The tube contents are taken up with chloroform, filtered and concentrated with the addition of methanol until the Ohloroform odor has disappeared.

   Then the reaction product crystallizes in beautiful prismatic needles from the corr. M.p. 235 0 (undecomposed). For analysis, the preparation was dried to constant weight after repeated recrystallization from a mixture of chloroform and methanol in a high vacuum at 25 °.



       Ber. for CSSH80N60 C 75.19% .H 8.31%; Gef. C 75.04% H 7.87% The new strongly basic porphine is a dark red-brown dye, the basicity of which is so great that it can be quantitatively taken from an ethereal solution with any weak acids.

   The solution of its salts with strong acids in water reacts neutrally and shows a neutral spectrum.



  The analysis confirms the presence of a new porphins other than phylloporphyrin esters.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines stark basischen Porphins, dadurch gekennzeichnet, dass man Pylloporphyrinmonomethylester mit Diäthylaminoäthylendiamin behandelt. Das neue starkbasische Porphin stellt einen dunkelrotbraunen Farbstoff dar, dessen Basizität so gross ist, dass er einer ätherischen Lösung mit beliebig schwachen Säuren quan titativ entnommen werden kann. PATENT CLAIM: Process for the preparation of a strongly basic porphine, characterized in that pylloporphyrin monomethyl ester is treated with diethylaminoethylenediamine. The new strongly basic porphine is a dark red-brown dye whose basicity is so great that it can be quantitatively taken from an ethereal solution with any weak acids. Die Lösung seiner Salze mit starken Säuren in Wasser reagiert neutral und zeigt Neutralspektrum. Die Analise bestätigt das Vorliegen eines von Phyllophorphyrinester verschiedenen, neuen Porphins. Die neue Verbindung kann zu färberischen Zwecken Verwendung finden. The solution of its salts with strong acids in water reacts neutrally and shows a neutral spectrum. The analysis confirms the presence of a new porphine other than phyllophorphyrin ester. The new compound can be used for coloring purposes.
CH162356D 1931-12-22 1931-12-22 Method for the preparation of a strongly basic porphine. CH162356A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH158834T 1931-12-22
CH162356T 1931-12-22

Publications (1)

Publication Number Publication Date
CH162356A true CH162356A (en) 1933-06-15

Family

ID=25717167

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162356D CH162356A (en) 1931-12-22 1931-12-22 Method for the preparation of a strongly basic porphine.

Country Status (1)

Country Link
CH (1) CH162356A (en)

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