科研之友
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摘要
Reacting of 6-azidopyridone derivatives 1 with o-phenylenediamine (2a) in chloroform at room temperature afforded the new azidopyridones 3. However, its fusion with 2a,b at 100-110 degrees C gave the interesting pyrido[2,3-bl[1,5]diazepines 4a,b. Alternatively, compound 4a could also be obtained by heating azidopyridones 3 at 100-110 degrees C. When compound 1 was allowed to react with hydrazines 7a-d at room temperature it gave the corresponding azido compounds 8a-d. Fusion of 1 with phenylhydrazine (7d) at 140-160 degrees C afforded the new aminopyridones 10. The 6-azidopyridones 1 could also be converted to the corresponding 6-alkylaminopyridones 15a-d by reaction with an excess of alkylamines at room temperature.
- 出版日期2008-2
