AT38542B - Process for the preparation of leuco compounds of the gallocyanin series. - Google Patents

Process for the preparation of leuco compounds of the gallocyanin series.

Info

Publication number
AT38542B
AT38542B AT38542DA AT38542B AT 38542 B AT38542 B AT 38542B AT 38542D A AT38542D A AT 38542DA AT 38542 B AT38542 B AT 38542B
Authority
AT
Austria
Prior art keywords
series
preparation
gallocyanin
leuco compounds
compounds
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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
Priority claimed from DE1907200075D external-priority patent/DE200075C/de
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT38542B publication Critical patent/AT38542B/en

Links

Landscapes

  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von Leukoverbindungen der   Galloeyaninreihe.   
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 blauer Töne verwenden. 



   Selbstverständlich können die angegebenen Farbstoffe und Glycine durch äquivalente Menge anderer Farbstoffe der   Galloeyaninreihe   bezw. anderer Glycine oder deren Abkömmlinge ersetzt werden, wie auch in anderen   geeigneten Lösungsmitteln   und bei anderer Temperatur gearbeitet werden kann und an Stelle. der   Farbstonsalze   deren Basen verwendet werden können.



   <Desc / Clms Page number 1>
 



  Method for the preparation of leuco compounds of the galloeyanin series.
 EMI1.1
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 Use blue tones.



   Of course, the specified dyes and glycines can bezw by equivalent amount of other dyes of the galloeyanin series. other glycines or their derivatives are replaced, as can be worked in other suitable solvents and at a different temperature and in place. of the coloring salts whose bases can be used.

 

Claims (1)

PATENT-ANSPRUCH : EMI2.2 Verfahren zur Darstellung von Leukoverbindungen der Gallocyaninreihe, darin bestehend, dass man den Glycinrest enthaltende Verbindungen auf die Farbstoffe der Galloevaninreihe einwirken lässt. PATENT CLAIM: EMI2.2 Process for the preparation of leuco compounds of the gallocyanin series, consisting in that compounds containing the glycine radical are allowed to act on the dyes of the galloevanin series.
AT38542D 1907-04-22 1908-07-13 Process for the preparation of leuco compounds of the gallocyanin series. AT38542B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1907200075D DE200075C (en) 1907-04-22

Publications (1)

Publication Number Publication Date
AT38542B true AT38542B (en) 1909-08-25

Family

ID=5759252

Family Applications (1)

Application Number Title Priority Date Filing Date
AT38542D AT38542B (en) 1907-04-22 1908-07-13 Process for the preparation of leuco compounds of the gallocyanin series.

Country Status (1)

Country Link
AT (1) AT38542B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917009A1 (en) * 1999-04-15 2000-10-19 Leybold Vakuum Gmbh Vacuum piston pump has gas inlet valve which is pressure controlled and installed so that it opens during suction stroke, and preferably during first phase of it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917009A1 (en) * 1999-04-15 2000-10-19 Leybold Vakuum Gmbh Vacuum piston pump has gas inlet valve which is pressure controlled and installed so that it opens during suction stroke, and preferably during first phase of it

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