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Abstract
The present dissertation describes the utitity of heterocyclic hydrazonoyl halides 1A,B in the synthesis of a new enaminones 3A,B which used for the synthesis of various bipyrazole 8, 13, 14 and pyrazolopyridazine derivatives 10,15. A new 5- amino- 4- iminopyrazolo [3, 4- d] pyrimidine 18A,B was prepared and used in the synthesis of 1, 9- diarylpyrazolo [4,3 - e] 1, 2, 4- triazolo [1, 5- c] pyrimidine 19, 20, 21. Also, triazolo [4, 3- b] [1, 2, 4] triazin - 7- one derivatives 30 and spiropyrazolines 32 were prepared from reaction of heterocyclic hydrazonoyl halides 1A,B with 3- thioxo - 1, 2, 4- triazin - 5- ones 22 and 5- arylmethylene - 3- phenyl - 4- oxothiazole - 2- thione 31, respectively. The structures of the compounds were established on the basis of elemental and spectral analyses as well as their chemical reactions