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F Hoffmann La Roche AG
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F Hoffmann La Roche AG
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Publication of ES252694A1publicationCriticalpatent/ES252694A1/en
C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
C07C243/24—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids
C07C243/38—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids with acylating carboxyl groups bound to carbon atoms of six-membered aromatic rings
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Chemical & Material Sciences
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Organic Chemistry
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
Process for the preparation of substituted acid hydrazides and their salts which comprises condensing the 12-diisopropyl-hydrazine or a salt thereof with an acylating agent including the group r-co- in which r represents a phenyl group carrying at least one substituent selected from the group consisting of halogenonitrohydroxyalkyl, lower alkoxy, lower alkoxy lower alkanoyloxy lower methylenedioxy lower alkylidenedioxy, and lower alkylmercaptoproceding if r represents a substituted phenyl group in the alkanoyloxy, a hydrolyzate is desired to obtain the corresponding hydroxy substitution product and it is convenient to transform the obtained hydrazine into a salt. (Machine-translation by Google Translate, not legally binding)
ES0252694A1958-10-171959-10-16
PROCEDURE FOR OBTAINING SUBSTITUTED ACID HYDRAZIDES AND THEIR SALTS
ExpiredES252694A1
(en)