Legal status (The legal status 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 status listed.)
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Novartis AG
Original Assignee
JR Geigy AG
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Publication date
Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Priority to ES0241806ApriorityCriticalpatent/ES241806A1/en
Publication of ES241806A1publicationCriticalpatent/ES241806A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process for the preparation of dioxazine dyes, characterized in that a N-triazinyl-p-phenylenediamine compound of general formula I is condensed ** (See formula) ** where they mean R1 and R2 organic radicals, optionally linked to the triazinyl radical by nitrogen atoms, and X hydrogen, or an ethereal group, and in which the benzene nucleus A may still be substituted later, with chloroanil, transforming the condensation product into a trifendioxazin dye of general formula II ** (See formula) ** in which the symbols and have the significance indicated above and that the benzene ring A may still be substituted later. (Machine-translation by Google Translate, not legally binding)
ES0241806A1958-05-091958-05-09Procedure for the preparation of dioxazine colorants. (Machine-translation by Google Translate, not legally binding)
ExpiredES241806A1
(en)
Procedure for the preparation of chemical compounds of the n family (nitro 5-acil 2-furano amino 3-oxazolidonas 2) (Machine-translation by Google Translate, not legally binding)