THE STRUCTURE OF PRODUCTS OF COUPLING OF ARENEDIAZONIUM SALTS WITH 3-AMINOCROTONONITRILE DERIVATIVES
The structure of products of coupling arenediazonium salts with 3-aminocrotononitrile derivatives is reported.The spectral data as well as the chemical behaviour of coupling products indicated that it is the hydrazone in (E)-form.
Elnagdi, Mohamed Hilmy,Sadek, Kamal Usef,Taha, Nadia Mohamed,Yassin, Youssef Mahfous
p. 734 - 744
(2007/10/02)
Reactions with Heterocyclic Diazonium Salts: Novel Synthesis of Pyrazolopyridazines and of Pyrazolopyrazoles
Diazotised 4-amino-1,5-dimethyl-2-phenylpyrazol-3(2H)-one (1) coupled with active methylene nitriles to yield the corresponding cyanohydrazones (3a-c) and (11).Compounds (3a-c) afforded the 4-(3-aminopyrazol-4-ylidenehydrazino)-1,5-dimethyl-2-phenylpyrazo
Elnagdi, Mohamed Hilmy,Elfahham, Hassan Attia,Elmoghayar, Mohamed Rifaat Hamza,Sadek, Kamal Usef,Elgemeie, Galal Eldin Hamza
p. 989 - 992
(2007/10/02)
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