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.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to ES0223808ApriorityCriticalpatent/ES223808A2/en
Publication of ES223808A2publicationCriticalpatent/ES223808A2/en
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Abstract
Improvements in the object of main patent no. 223694 for: Procedure for the preparation of new diimidazol derivatives of general formula. in which they mean: A possibly substituted aromatic nucleus in which two neighboring carbon atoms are bonded with the two imidazolnitrogen atoms and R and hydrogen or the same or different substituents and their salts characterized in that appropriate aromatic o-diamines are transposed or their salts optionally in the presence of catalysts with tartaric acid or its functional derivatives and eventually reacting alkoxylation, oxyalkoylation or aralkoylation media with the diimidazoles obtained. (Machine-translation by Google Translate, not legally binding)
ES0223808A1955-09-021955-09-02A procedure for the preparation of new diimidazolderives (Machine-translation by Google Translate, not legally binding)
ExpiredES223808A2
(en)
Procedure for the manufacture of derivatives of the 1-bencil tetrahidroisoquinolina basically replaced (Machine-translation by Google Translate, not legally binding)