Studies with 3-substituted 2-arylhydrazono-3-oxoaldehydes: new routes for synthesis of 2-arylhydrazono-3-oxonitriles, 4-unsubstituted 3, 5-diacylpyrazoles and 4- …
B Al-Saleh, MA El-Apasery…
文献索引：Al-Saleh, Balkis; El-Apasery, Morsy A.; Elnagdi, Mohamed Hilmy Journal of Chemical Research, 2004 , # 8 p. 578 - 580
Compounds 1a-c reacts with hydroxylamine-O-sulfonic acid or with hydroxylamine hydrochloride in aqueous acetic acid in the presence of sodium acetate to yield the 3- oxoalkanonitriles 3, which were converted into arylazoisoxazole and 1, 2, 4-triazine derivatives 10. The hydrazones 1a-c reacted with chloroacetone or with phenacyl bromide in refluxing ethanol and in presence of K2CO3 to yield the pyrazoles 12a-e, formed most ...
