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Acylhydrazines (s. a. Carboxylic acid hydrazides, Sulfonyl-hydrazines)... [Pg.246]

Oxadiazoles 8 [465] are obtained by acid-promoted cyclocondensation of carboxylic hydrazides (acylhydrazines) (a) with acid chlorides in the presence of P4O10 [466] and (b) with orthoesters catalyzed by alum (KA1(S04)2 12 H2O) [467] ... [Pg.251]

See other pages where Acylhydrazines Carboxylic acid hydrazides is mentioned: [Pg.255] [Pg.1412] [Pg.1092] [Pg.1609]