A case study of the iodine‐mediated cyclization of
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‐chalcones toward the synthesis of flavones: Reinvestigation of the mechanisms
作者:Hsin Yen Tsai、Yu‐Tzu Huang、Cing‐Ling Kuo、Chia‐Jou Kuo、Anren Hu、Jih‐Jung Chen、Tzenge‐Lien Shih
DOI:10.1002/jccs.202000482
日期:2021.7
Synthesis of flavones from chalcones via the iodine-mediated cyclization required at least one hydroxy group at their C2′-positions. On the contrary, the ring oxidative cyclization from C2-OH-chalcones under the same condition was unusual and reported only once. We evaluated the aforementioned method and found different results. The mechanisms in detail were discussed.
通过碘介导的环化从查耳酮合成黄酮需要在其 C 2 '-位至少有一个羟基。相反,C 2 -OH-查耳酮在相同条件下的环氧化环化是不寻常的,仅报道过一次。我们评估了上述方法并发现了不同的结果。详细讨论了这些机制。