Syntheses of 2-azafluorenones from 3-substituted 4-arylpyridines

Min Jen Shiao, Kang Hsiuan Liu, Pen Yuan Lin

研究成果: 雜誌貢獻文章

15 引文 斯高帕斯(Scopus)

摘要

3-Substituted 4-arylpyridines (5a-i) were synthesized in good yields by reaction of mixed copper, zinc aryl organometallics (2a-e) with 1-ethoxycarbonyl-pyridinium chlorides (1a-d) followed by o-chloranil oxidation under reflux in toluene. The 4-arylpyridines (5a-i) are obtained predominantly. Having compounds (5a-i) in hand, a convenient method was developed for the synthesis of 2-azafluorenones (7a-f) by using cyclization of 4-arylpyridines (5a-i) with polyphosphoric acid.

原文英語
頁(從 - 到)507-518
頁數12
期刊Heterocycles
36
發行號3
出版狀態已發佈 - 三月 1 1993
對外發佈Yes

ASJC Scopus subject areas

  • Organic Chemistry

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