Chinese Journal of Organic Chemistry ›› 2026, Vol. 46 ›› Issue (2): 496-506.DOI: 10.6023/cjoc202507037 Previous Articles     Next Articles

ARTICLES

铜催化3-硝基色烯与烯胺酮环化反应合成2H-色烯并吡咯衍生物

梁婉婷, 陈思怡, 徐恩琪, 陈雪冰*()   

  1. 红河学院化学与资源工程学院 云南省绿色食品中越双边国际联合实验室 云南蒙自 661199
  • 收稿日期:2025-07-28 修回日期:2025-09-25 发布日期:2025-11-05
  • 通讯作者: 陈雪冰
  • 基金资助:
    云南省绿色食品中越双边国际联合实验室(202403AP140032)

Copper-Catalyzed Cyclization Reaction of 3-Nitrochromenes with Enaminones to Synthesize of 2H-Chromeno-pyrrole Derivatives

Wanting Liang, Siyi Chen, Enqi Xu, Xuebing Chen*()   

  1. Yunnan Province International Joint Laboratory of Green Food (China-Vietnam), School of Chemistry and Resource Engineering, Honghe University, Mengzi, Yunnan 661199
  • Received:2025-07-28 Revised:2025-09-25 Published:2025-11-05
  • Contact: Xuebing Chen
  • Supported by:
    Yunnan Provincial International Joint Laboratory of Green Food (China-Vietnam)(202403AP140032)

Chromeno-pyrrole derivatives exhibit a wide range of biological and pharmacological activities. Herein, a novel approach to the synthesis of molecular diversity 2H-chromeno-pyrrole has been developed from [3+2] cyclization of 3-nitrochromenes. The reaction is catalyzed by CuI with 2,3,4,6,7,8-hexahydropyrrolo[1,2-a]pyrimidine (DBN) as the promoter at room temperature. This reaction has the advantages of good functional group compatibility, broad substrate universality, and mild reaction conditions.

Key words: copper catalysis, [3+2] cyclization, 2H-chromeno-pyrroles, 3-nitrochromenes, enaminones