Abstract
5,5-Dimethyl-2-[(2-substitutedphenylhydrazinyl)methylene]cyclohexane-1,3-dione, obtained from heating dimedone with N,N‘-dimethylformamide dimethyl acetal (DMF-DMA) and phenyl hydrazines, on cyclisation in ethanol gave 6,7-dihydro-1H-indazol-4(5H)-ones. The thiosemicarbazone derivative of 6,7-dihydro-1H-indazole-4(5H)-ones, on cyclocondensation with
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