87650-00-8Relevant academic research and scientific papers
RING-CHAIN TAUTOMERISM OF β-KETO ESTER THIOBENZOYLHYDRAZONES
Nikolaev, V.N.,Yakimovich, S.I.,Koshmina, N.V.,Zelenin, K.N.,Alekseev, V.V.,et al.
, p. 838 - 841 (1983)
The product of condensation of thiobenzhydrazide with methyl acetoacetate and its α-alkyl-substituted homologs have the structure of the corresponding 2,3-dihydro-1,3,4-thiadiazoles; only the derivative of α-isopropylacetoacetic acid ester has the open hydrazone form.The products of the reaction of thiobenzhydrazide with the methyl ester of 2-oxocyclopentane- and 2-oxocyclohexanecarboxylic acid are mixtures of enehydrazine and thiadiazoline forms; the percentage of the latter decreases in polar solvents.
