ARTICLE

Phosphine-Catalyzed [3+2] and [4+2] Annulations of Amino(Hydroxyl)-Substituted α,β-Unsaturated Esters(Ketones) with Iso(thio)cyanates

  • 胡燚 ,
  • 蔡逸飞 ,
  • 高浩杰 ,
  • 姜磬歌 ,
  • 刘明国 ,
  • 王能中 ,
  • 黄年玉
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  • Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang Hubei 443002
These authors contributed equally to this work.

Received date: 2026-06-16

  Revised date: 2026-07-14

  Online published: 2026-08-24

Supported by

111 Project (No. D20015), the Hubei Provincial Natural Science Foundation Joint Fund for Innovation and Development Project of Yichang (2025AFD262), and the Hubei Provincial Central Government Guided Local Science and Technology Development Project (2024BSB016).

Abstract

Five- and six-membered saturated polyheterocyclic compounds are widely found in natural products and pharmaceuticals with excellent biological activities. These scaffolds have attracted significant attention in organic synthesis. However, constructing these scaffolds typically requires different approaches, resulting in low synthetic efficiency. This paper reports a novel method for the efficient divergent synthesis of imidazolidinones, oxazolidinones, imidazolidinethiones, oxazolidinethiones tetrahydropyrimidinones, and oxazinanones via phosphine-catalyzed [3+2] and [4+2] annulations of amino (hydroxyl)-substituted α,β-unsaturated esters (ketones) with iso(thio)cyanates. This method offers advantages such as simple operation, broad substrate scope, and 100% atom economy. Gram-scale synthesis and further transformations demonstrate its good application potential.

Cite this article

胡燚 , 蔡逸飞 , 高浩杰 , 姜磬歌 , 刘明国 , 王能中 , 黄年玉 . Phosphine-Catalyzed [3+2] and [4+2] Annulations of Amino(Hydroxyl)-Substituted α,β-Unsaturated Esters(Ketones) with Iso(thio)cyanates[J]. Chinese Journal of Organic Chemistry, 0 : 202604009 . DOI: 10.6023/cjoc202604009

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