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
Priority claimed from CH230760Aexternal-prioritypatent/CH390924A/en
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES265287A1publicationCriticalpatent/ES265287A1/en
C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Plural Heterocyclic Compounds
(AREA)
Abstract
Process for the preparation of 1,3,4-thiadiazoles of formula ** (See formula) ** wherein R1, R2 and R3 mean aromatic radicals, where n is an integer value of at most 2, based on acylhydrazines of formula ** (See formula) ** wherein R1, R2, R3 and n have the indicated meaning, by means of phosphorus sulphides, characterized in that the transposition takes place in the presence of tertiary bases. (Machine-translation by Google Translate, not legally binding)
ES0265287A1960-03-011961-02-28Procedure for the preparation of 1,3,4-tiadiazoles (Machine-translation by Google Translate, not legally binding)
ExpiredES265287A1
(en)
New biaxially nematic liquid crystal ring compounds, e.g. (2,5-bis-hexyloxy-4-pyridin-3-yl-ethynyl-phenylethynyl)-phenyl-(1,3,4)thiadiazol-2-yl-phenylethynyl-2,5-bis-hexyloxy-phenylethynyl-phenoxy-acetic acid ethyl ester, useful in LCD
Procedure for the preparation of new 1,2) diaril-3,5-dioxopirazolidinas replaced in position 4 (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)
A procedure for the preparation of antibiotics of 1-n (-amino-hydroxialcanoil) aminoglicosido (Machine-translation by Google Translate, not legally binding)