This study describes a palladium-catalyzed decarboxylative (5 + 5) cyclization reaction of vinyloxazolidine-2,4-diones. The cyclization between aza-π-allylpalladium and oxa-π-allylpalladium intermediates, both in situ generated from vinyloxazolidine-2,4-diones, is successfully realized to produce a series of ten-membered N,O-containing heterocycles in up to 90% yield. This work represents a pioneering application of vinyloxazolidine-2,4-diones as oxa-π-allylpalladium species precursors for the construction of heterocyclic compounds.

中文翻译：

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乙烯基恶唑烷-2,4-二酮的钯催化脱羧（5 + 5）环化反应：获得十元含 N,O 杂环


本研究描述了乙烯基恶唑烷-2,4-二酮的钯催化脱羧 (5 + 5) 环化反应。氮杂-π-烯丙基钯和氧杂-π-烯丙基钯中间体（均由乙烯基恶唑烷-2,4-二酮原位生成）之间的环化已成功实现，可产生一系列高达 90 的十元含 N,O 杂环。 ％ 屈服。这项工作代表了乙烯基恶唑烷-2,4-二酮作为氧杂-π-烯丙基钯物质前体用于构建杂环化合物的开创性应用。