Photo‐Induced Cross‐Dehydrogenative Coupling of Quinoxalin‐2(1H)‐ones with Aldehydes under Metal Free Conditions without an External Photocatalyst
作者:Chunmiao Wang、Jiangtao Jiang、Min Wang、Weichang Zhu、Pinhua Li
DOI:10.1002/ejoc.202400162
日期:2024.5.21
yields with good functional group compatibility of quinoxalin-2(1H)-ones and aryl aldehydes. Mechanism studies revealed that the bromide radical (Br⋅) and bromomethyl radical (BrCH2⋅) generated from the homolytic cleavage of excited-state CH2Br2 maybe act as the hydrogen abstracting reagent during this process.
Regioselective synthesis of N-containing polycyclic compounds via radical annulation cyclization of 1,7-dienes with aldehydes
作者:Jia-Li Sui、Long-Jin Zhong、Bi-Quan Xiong、Ke-Wen Tang、Yu Liu
DOI:10.1039/d4cc00964a
日期:——
A convenient method for oxidant-promoted radical cascade acylation or decarbonylative alkylation of 1,7-dienes with aldehydes has been established. This method allows for the rapid construction of N-containing polycyclic skeletons in a highly regio- and stereoselective manner. This transformation provides a simple and efficient method for the preparation of a range of tetrahydro-6H-indeno[2,1-c]quinolinone