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
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 CH1779467Aexternal-prioritypatent/CH497497A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES361609A1publicationCriticalpatent/ES361609A1/en
Agricultural Chemicals And Associated Chemicals
(AREA)
Cosmetics
(AREA)
Abstract
Process for the preparation of anthrimidocarbazoles, by carbazinization of antrimides, characterized in that a complex system of aluminum chloride and pyridine bases is employed as the carbazinizing agent in which the molar ratio of aluminum chloride: aluminum chloride + pyridinic base is find between 0.3 and 1. (Machine-translation by Google Translate, not legally binding)
ES361609A1967-12-191968-12-18Procedure for the preparation of antrimidocarbazoles. (Machine-translation by Google Translate, not legally binding)
ExpiredES361609A1
(en)
Procedure for the preparation of N- (2-amino-3,5-dibromobenciliden) -trans-4-amino-ciclohexanol. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of a salt of 4: 4 '- bipiridilio n: n'-disubstituida. (Machine-translation by Google Translate, not legally binding)