ES309456A1 - A procedure for the manufacture of derivatives of dibenzocicloheptatrieno. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the manufacture of derivatives of dibenzocicloheptatrieno. (Machine-translation by Google Translate, not legally binding)
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F Hoffmann La Roche AG
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F Hoffmann La Roche AG
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Priority claimed from CH196964Aexternal-prioritypatent/CH450398A/en
Application filed by F Hoffmann La Roche AGfiledCriticalF Hoffmann La Roche AG
Publication of ES309456A1publicationCriticalpatent/ES309456A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A process for the manufacture of dibenzocycloheptatriene derivatives, characterized in that it consists in reacting an acid of the general formula ** (See formula) ** where R is taken from the group consisting of hydrogen, halogen, lower alkyl, trifluoromethyl, lower alkoxy, lower alkylthio, lower alkanoyl, sulphamoyl, lower alkylsulfamoyl, and lower alkylsulfonyl, A is an alkylenic moiety of 1 to 4 carbon atoms and B is taken from the group consisting of halogen, lower alkoxy and lower alkylthio, or a functional and reactive derivative thereof, with ammonia or with a substituted amino, O well in dehydrating a compound of the formula ** (See formula) ** where A, B and R have the same meaning stated above X is taken from the group consisting of oxygen, sulfur and imido e And it is taken from the group consisting of substituted and unsubstituted amino groups, in transforming, if desired, a compound in which B represents halogen in a corresponding alkoxy or alkylthio compound and in transforming, if desired, an acid amide in the corresponding thioacid amide. (Machine-translation by Google Translate, not legally binding)
ES0309456A1964-02-181965-02-17A procedure for the manufacture of derivatives of dibenzocicloheptatrieno. (Machine-translation by Google Translate, not legally binding)
ExpiredES309456A1
(en)
Procedure for the obtaining of new derivatives of heterocyclic hydrazines and their salts (Machine-translation by Google Translate, not legally binding)