Regioselective one-pot synthesis of 2,3-diaryl-2H-1-benzopyrans via Brønsted acid-catalyzed [4+2] cycloaddition of salicylaldehydes with diarylacetylenes

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• 作者：Kenta Tanaka ; Yosuke Shigematsu ; Mayumi Sukekawa ; Yujiro Hoshino ; Kiyoshi Honda ; ^{k-honda@ynu.ac.jp}
• 关键词：Regioselective synthesis ; [4+2] cycloaddition ; ortho-Quinonemethide ; Brø ; nsted acid catalyst ; Benzopyrans
• 刊名：Tetrahedron Letters
• 出版年：2016
• 出版时间：28 December 2016
• 年：2016
• 卷：57
• 期：52
• 页码：5914-5918
• 全文大小：771 K
• 卷排序：57

文摘

A regioselective one-pot synthesis of 2,3-diaryl-2H-1-benzopyrans has been developed. Brønsted acid-catalyzed [4+2] cycloaddition has been developed. High regioselectivity was observed in the reaction. The present reaction provides functionalized 2,3-diaryl-2H-1-benzopyrans.