Abstract
The behavior of aliphatic (cyclohexanecarboxylic) and aromatic (salicylic and isonicotinic) carboxylic acid hydrazides toward peroxide products of ozonolysis of a terminal alkene, non-1-ene, in protic (methanol) and aprotic solvents (THF, methylene chloride) has been studied. These hydrazides are capable of acting as reducing agents or decomposing intermediate peroxides. For the synthesis of N′-octylidene isoniazid derivative, it is advisable to carry out the reaction in methanol, whereas the use of THF as solvent favors formation of N′-octylidenecyclohexane-1-carbonydrazide. Salicylic acid hydrazide showed a low efficiency; in this case, mixtures of the corresponding hydrazone with octanoic acid or its methyl ester were formed in a low yield.
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