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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AGfiledCriticalBayer AG
Priority to ES0255920ApriorityCriticalpatent/ES255920A2/en
Publication of ES255920A2publicationCriticalpatent/ES255920A2/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Improvements introduced in the object of the main patent No. 246,470, granted on February 10, 1959, by: "Procedure for obtaining dyes", characterized in that in the dyes, according to known procedures, at least once is introduced the group: - R - R1 ⊕ - R2 - Y where R means an alkylene, arylenic or cycloalkylenic moiety and R2 an alkylene moiety with up to 3 carbon atoms between the moieties R1 and Y, R1 is a group (See formula) where R3 and R4 represent aliphatic, cycloaliphatic, aromatic or araliphatic substituents, which may be components of a heterocyclic ring and where Y is by a dissociative substituent as a negative ion. (Machine-translation by Google Translate, not legally binding)
ES0255920A1960-02-201960-02-20Procedure for obtaining colorants (Machine-translation by Google Translate, not legally binding)
ExpiredES255920A2
(en)
Procedure for the aminoalcohilation of aromatic or aromatic-heterocyclic secondary amino (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of effective compounds in the treatment of bronchospastic conditions. (Machine-translation by Google Translate, not legally binding)