Sustainable Fe-iminopyridine catalysts were investigated for the formation of five-membered heterocycles, cyclic carbonates and oxazolidinones from carbon dioxide and epoxides, aziridines and propargyl amines respectively. The homoleptic and heteroleptic Fe catalysts were prepared by a convenient self-assembly protocol. The optimal catalyst contained a hydrogen bond donor to activate substrate ring opening and a nucleophilic imidazole group to activate the CO₂ electrophile. This approach represents a green CO₂ recycling method to afford value-added chemicals with potential industrial applications.

中文翻译：

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使用二氧化碳和 Fe-亚氨基吡啶催化剂可持续合成五元杂环

研究了可持续的 Fe-亚氨基吡啶催化剂用于分别从二氧化碳和环氧化物、氮丙啶和炔丙基胺形成五元杂环、环状碳酸酯和恶唑烷酮。均配型和杂配型 Fe 催化剂通过方便的自组装方案制备。最佳催化剂包含一个氢键供体来激活底物开环和一个亲核咪唑基团来激活CO ₂亲电子试剂。这种方法代表了一种绿色 CO ₂回收方法，可提供具有潜在工业应用的增值化学品。