CH161236A - Method for the preparation of a strongly basic porphine. - Google Patents

Method for the preparation of a strongly basic porphine.

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Publication number
CH161236A
CH161236A CH161236DA CH161236A CH 161236 A CH161236 A CH 161236A CH 161236D A CH161236D A CH 161236DA CH 161236 A CH161236 A CH 161236A
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CH
Switzerland
Prior art keywords
porphine
preparation
strongly basic
new
solution
Prior art date
Application number
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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
Priority to CH161236D priority Critical patent/CH161236A/en
Publication of CH161236A publication Critical patent/CH161236A/en

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Description

  

  Verfahren zur Darstellung eines starkbasischen     Porphins.       Das vorliegende Verfahren betrifft die  Darstellung eines starkbasischen     Porphins     und ist dadurch gekennzeichnet, dass man       Phylloporphyrin    mit     Diäthylaminoäthanol     behandelt.  



  <I>Beispiel:</I>  1     gr        Phylloporphyrin    wird im Heizbad  mit 5     cmg        Diäthylaminoäthanol    5-6 Stunden  lang auf<B>1550</B> erhitzt. Es tritt quantitative    Umsetzung zu einem starkbasischen     Porphin     ein. Das Produkt kristallisiert beim Erkalten  in grossen prismatischen Nadeln aus und wird  durch     Umkristallisieren    aus einem Gemisch  von Chloroform und     Diäthylaminoäthanol    mit  einem     korr.    Schmelzpunkt von 210   erhalten.  Zur Analyse wurde das mehrfach umkristalli  sierte neue     Porphin    im Hochvakuum bei 250  zur Gewichtskonstanz getrocknet.

           Ber.        für        C88H4s02N5        C        75;20        %        H        7,98        %.        N        11,55        %          Gef.   <B>0</B>     74,93%        H        7,80        %        N        11,

  42        %       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     Phylloporphyrin    verschiedenen neuen       Porphins.  



  Method for the preparation of a strongly basic porphine. The present process relates to the preparation of a strongly basic porphine and is characterized in that phylloporphyrin is treated with diethylaminoethanol.



  <I> Example: </I> 1 gram of phylloporphyrin is heated to <B> 1550 </B> for 5-6 hours in a heating bath with 5 cmg of diethylaminoethanol. Quantitative conversion to a strongly basic porphine occurs. The product crystallizes out in large prismatic needles on cooling and is recrystallized from a mixture of chloroform and diethylaminoethanol with a corr. Melting point of 210 obtained. For analysis, the repeatedly recrystallized new porphine was dried to constant weight in a high vacuum at 250.

           Ber. for C88H4s02N5 C 75; 20% H 7.98%. N 11.55% found <B> 0 </B> 74.93% H 7.80% N 11,

  42% 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 porphine other than phylloporphyrin.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines starkba sischen Porphins, dadurch gekennzeichnet, dass man Phyllophorphyrin mit Diäthylamino- äthanol 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 base porphine, characterized in that phyllophorphyrin is treated with diethylaminoethanol. 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 Analyse bestätigt das Vorliegen eines von Phylloporphyrin verschiedenen neuen Porphins. Das neue Produkt soll für färbe rische Zwecke verwendet werden. 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 phylloporphyrin. The new product will be used for dyeing purposes.
CH161236D 1931-12-22 1931-12-22 Method for the preparation of a strongly basic porphine. CH161236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH161236D CH161236A (en) 1931-12-22 1931-12-22 Method for the preparation of a strongly basic porphine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH158834T 1931-12-22
CH161236D CH161236A (en) 1931-12-22 1931-12-22 Method for the preparation of a strongly basic porphine.

Publications (1)

Publication Number Publication Date
CH161236A true CH161236A (en) 1933-04-15

Family

ID=25717165

Family Applications (1)

Application Number Title Priority Date Filing Date
CH161236D CH161236A (en) 1931-12-22 1931-12-22 Method for the preparation of a strongly basic porphine.

Country Status (1)

Country Link
CH (1) CH161236A (en)

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