HETEROCYCLIC SYNTHESIS FROM 3-AMINO-4-CYANOPYRAZOLE
3-Amino-4-cyanopyrazole I reacts with hydroxylamine and with hydrazine to yield 1H,6H-3-aminopyrazolopyrazole (III and IV).Diazotized IV couples with 2-naphthol to give the arylazo derivative VI which cyclizes to 9H-naphtholpyrazolo3',4' :
Deeb, Ali,El-Mobayed, Medhat,Essawy, Abdel Naby,El-Hamid, Adel Abd,El-Hamid, Atef Mohamid Abd
p. 728 - 733
(2007/10/02)
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