Abstract
In a multistep reaction, indeno[2,1-e][1,3,4]oxadiazine-9-one, oxoindeno[1,2-c]- pyrazolecarbothioamide, (thioxo-1,2,4-triazaspiro[4.5]decadienylidene)malononitrile and spiro-(fluorine-9,3′-[1,2,4]triazoline)-5′-thione derivatives have been formed from a series of (substituted ylidene)-N-phenylhydrazinecarbothioamides
