Chinese Journal of Organic Chemistry ›› 2025, Vol. 45 ›› Issue (7): 2586-2599.DOI: 10.6023/cjoc202408023 Previous Articles     Next Articles

ARTICLES

α-[二(烷氧羰基)甲基]查尔酮的制备及其在多取代环丙烷衍生物合成中的应用

焦俊强, 杨高升*()   

  1. 安徽师范大学化学与材料科学学院 安徽芜湖 241002
  • 收稿日期:2024-11-01 修回日期:2024-12-04 发布日期:2024-12-12
  • 基金资助:
    国家自然科学基金(21672005); 国家自然科学基金(21172002)

Preparation of α-(Di(alkoxycarbonyl)methyl)chalcones and Their Application in the Synthesis of Multisubstituted Cyclopropanes

Junqiang Jiao, Gaosheng Yang*()   

  1. College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002
  • Received:2024-11-01 Revised:2024-12-04 Published:2024-12-12
  • Contact: *E-mail: gshyang@ahnu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(21672005); National Natural Science Foundation of China(21172002)

The synthesis and cyclopropanation of α-(di(alkoxycarbonyl)methyl)chalcones were studied. In the presence of sodium hydride, 2-aroylmethylenemalonates reacted with arylmethyl p-tolyl sulfone to give α-(di(alkoxycarbonyl)methyl)- chalcones via a conjugate addition/elimination sequence. Under the promotion of sodium hydride, the reaction of α-(di(alkoxy- carbonyl)methyl)chalcones with trimethylsulfoxonium iodide proceeded via a conjugate addition/cyclopropanation sequence to give multisubstituted cyclopropane of 2-(1-aroyl-2-arylcyclopropyl)malonates. In a preliminary study, these cyclopropanes showed good reactivity in the cyclocondensation reactions with urotropin or 1,3,5-triphenyl-1,3,5-triazinane to provide structurally novel heterocyclic products under catalyst-free conditions.

Key words: synthesis, conjugate addition, chalcone, cyclopropanation