A concise and efficient strategy has been proposed to synthesize indolizine derivatives from easily available aryl or heteroaryl methyl ketones, pyridines, and acrylonitriles. The mechanistic pathway involved the integration of iodination, pyridinium ylide synthesis, and 1,3-dipolar cycloaddition. The protocols were found to be highly efficient in terms of high yields, operational simplicity, mild reaction conditions, and easy workup. This method has provided an important supplement for the synthesis of indolizine derivatives via a novel tandem synthesis.
已提出一种简洁高效的策略,可从易得的芳基或杂环芳基甲基酮、吡啶和丙烯腈合成吲哚啉衍生物。机理途径涉及碘化、吡啶铵叶立德合成和1,3-二极环加成的整合。该方案在高产率、操作简便、温和反应条件和易于操作等方面表现出高效性。这种方法为通过新颖串联合成合成吲哚啉衍生物提供了重要补充。