摘要
发展了1,4-二氮杂二环[2.2.2]辛烷(DABCO)催化硫代橙酮类似物与联烯酸酯之间的串联环化反应,以甲醇为溶剂,以较好的选择性和收率获得两类苯并噻吩并吡喃衍生物.同时,该反应条件温和、底物适应性广,吸电子基或供电子基取代的硫代橙酮类似物都能以较好的选择性和收率生成目标产物.该反应为苯并噻吩并吡喃衍生物的合成提供了一种便利的方法.
A 1,4-diazabicyclo[2.2.2]octane (DABCO)-catalyzed[4+2] annulation reaction between 2-alkylidenebenzothio phene-3(2H)-ones and allenoate has been developed.The substrate scope includes both electron-withdrawing and electron-donating groups on the benzothiophene moiety.This method can be carried out under mild conditions and gives a wide range of highly functionalized benzothiophene-fused γ-pyran derivatives in good yields with moderate selectivity.
作者
贾继茹
于爱敏
刘旭光
孟祥太
Jia Jiru;Yu Aimin;Liu Xuguang;Meng Xiangtai(Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion,School of Chemistry & Chemical Engineering,Tianjin University of Technology,Tianjin 300384 China)
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2019年第8期2175-2182,共8页
Chinese Journal of Organic Chemistry
基金
Project supported by the National Natural Science Foundation of China(No.21403154)
the Natural Science Foundation of Tianjin City(No.17JCZDJC37700)
the Tianjin Municipal Education Commission(No.20180KJ137)~~
