Bicyclization of Isocyanides with Alkenoyl Bis(ketene dithioacetals): Access to 6,7-Dihydro-1H-indol-4(5H)-ones

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• 作者：Yifei Li ; Xianxiu Xu ; Hui Shi ; Ling Pan ; Qun Liu
• 刊名：Journal of Organic Chemistry
• 出版年：2014
• 出版时间：June 20, 2014
• 年：2014
• 卷：79
• 期：12
• 页码：5929-5933
• 全文大小：281K
• 年卷期：v.79,no.12(June 20, 2014)
• ISSN：1520-6904

文摘

The tandem [3 + 2] cycloaddition/intramolecular imidoyl anion trapping strategy has been successfully applied for the synthesis of 6,7-dihydro-1H-indol-4(5H)-ones from alkenoyl bis(ketene dithioacetals) and tosylmethyl isocyanide. The reaction proceeded smoothly under mild reaction conditions to afford bicyclization products in high to excellent yields in a single step.