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Novartis AG
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Ciba Geigy AG
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Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES387272A1publicationCriticalpatent/ES387272A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Abstract
Procedure for the preparation of new bis-aroxazolylic compounds of the formula ** formula ** in which X represents a member -O -, - S- or -SO2-; T1 and T''1 signify hydrogen, a lower alkyl group, a lower alkoxy group, halogen or a sulfonic group and also their functional derivatives; and A and A'' mean a benzene ring (which may contain from 1 to 4 non-chromophoric substituents), a tetrahydronaphthalinic ring or a naphthalinic ring (which can carry functions of sulfonic acid or alkyl or alkoxylic groups) or a hydrénénic ring, characterized by React each other, at temperatures between 120 and 350ºC and preferably in the presence of condensing agents, in total around 2 molar equivalents of aminophenols. (Machine-translation by Google Translate, not legally binding)
ES387272A1969-12-171970-12-16Procedure to prepare new bis-aroxazolilic compounds. (Machine-translation by Google Translate, not legally binding)
ExpiredES387272A1
(en)
Procedure for the preparation of derivatives of feniliden phenyl hyyridine alpha, alpha dissubstitute. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of derivatives of alpha-nicotinoil-beta- (fenilsustituido) etileno. (Machine-translation by Google Translate, not legally binding)