Visible-light-mediated Minisci C–H alkylation of heteroarenes with unactivated alkyl halides using O<sub>2</sub> as an oxidant
作者:Jianyang Dong、Xueli Lyu、Zhen Wang、Xiaochen Wang、Hongjian Song、Yuxiu Liu、Qingmin Wang
DOI:10.1039/c8sc04892d
日期:——
visible-light-mediated Minisci C–H alkylation of heteroarenes with unactivated alkyl halides using molecular oxygen as an oxidant at room temperature. This mild protocol is compatible with a wide array of sensitive functional groups and has a broad substrate scope. Notably, functionalization of (iso)quinolines, pyridines, phenanthrolines, quinazoline, and other heterocyclic compounds with unactivated primary, secondary
Photoredox-Mediated Minisci C–H Alkylation Reactions between N-Heteroarenes and Alkyl Iodides with Peroxyacetate as a Radical Relay Initiator
作者:Zhen Wang、Jianyang Dong、Yanan Hao、Yongqiang Li、Yuxiu Liu、Hongjian Song、Qingmin Wang
DOI:10.1021/acs.joc.9b02848
日期:2019.12.20
We developed a protocol for photoredox-mediated Minisci C-H alkylation reactions of N-heteroarenes in which readily available tert-butyl peroxyacetate acts as a radical relay precursor to generate alkylradicals from alkyliodides. This mild protocol tolerated a broad range of functional groups and could therefore be used for late-stage functionalization of complex nitrogen-containing natural products
Direct alkylation of heteroarenes with unactivated bromoalkanes using photoredox gold catalysis
作者:T. McCallum、L. Barriault
DOI:10.1039/c6sc00807k
日期:——
A protocol for direct C-H alkylation of heteroarenes was developed using photoredox catalysis as a mode of activation for unactivated bromoalkanes. Dimeric Au(I) complex, [Au2(dppm)2]Cl2, served as an efficient photocatalyst for this transformation.