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
Ciba Geigy AG
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Filing date
Publication date
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Priority to ES0218663ApriorityCriticalpatent/ES218663A1/en
Publication of ES218663A1publicationCriticalpatent/ES218663A1/en
Process for the preparation of new nitro dyes, characterized in that it is transformed, starting from aryl compounds containing a substitutable substituent by an amino group, preferably a halogen atom, and as further substituents a nitro group and a transformable substituent on a sulfonic ester group, to which effect one of these subsequent substituents is in ortho position and the other in para position, with respect to the substituent substitutable by an amino group, on the one hand the transformable substituent in a sulfonic ester group in a sulfonic aryl ester group and on the other hand, the substitutable substituent is replaced by an amino group, by an arylamino group, by choosing the starting materials for this purpose so that the nitro dyes formed are free of hydro-solvent power groups. (Machine-translation by Google Translate, not legally binding)
ES0218663A1954-11-261954-11-26Procedure for the preparation of new nitrocolorants (Machine-translation by Google Translate, not legally binding)
ExpiredES218663A1
(en)
Procedure for the preparation of new colorants of the peridicarboxylic acid imidas series. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of gluconate 2-/1,1-difenil-propil- (3) -amino/-3-phenyl-propane (Machine-translation by Google Translate, not legally binding)
Procedimine for the obtaining of derivatives of the acid p- [cumarinyl- (3)] - phenyl carbamine (Machine-translation by Google Translate, not legally binding)