Metal-, Photocatalyst-, and Light-Free Minisci C–H Alkylation of <i>N</i>-Heteroarenes with Oxalates
作者:Jianyang Dong、Zhen Wang、Xiaochen Wang、Hongjian Song、Yuxiu Liu、Qingmin Wang
DOI:10.1021/acs.joc.9b00972
日期:2019.6.7
for metal-, photocatalyst-, and light-freeMinisciC–Halkylation reactions of N-heteroarenes with alkyl oxalates derived from primary, secondary, and tertiary alcohols. The protocol uses environmentally benign persulfate as a stoichiometric oxidant and does not require high temperatures or large excesses of either of the substrates, making the procedure suitable for late-stage C–Halkylation of complex
Organocatalyzed, Visible-Light Photoredox-Mediated, One-Pot Minisci Reaction Using Carboxylic Acids via <i>N</i>-(Acyloxy)phthalimides
作者:Trevor C. Sherwood、Ning Li、Aliza N. Yazdani、T. G. Murali Dhar
DOI:10.1021/acs.joc.8b00205
日期:2018.3.2
one-pot Minisci reaction has been developed using visible light, an organic photocatalyst, and carboxylic acids as radical precursors via the intermediacy of in situ-generated N-(acyloxy)phthalimides. The conditions employed are mild, demonstrate a high degree of functional group tolerance, and do not require a large excess of the carboxylic acid reactant. As a result, this reaction can be applied to
Aerobic cross-dehydrogenative couplings of N-heteroarenes with toluene derivatives at room temperature
作者:Qiao-Lin Wang、Huawen Huang、Zhaozhao Sun、Yufeng Chen、Guo-Jun Deng
DOI:10.1039/d1gc02547c
日期:——
A set of mild aerobic cross-dehydrogenativecouplings of N-heteroarenes with the benzylic C(sp3)–H bond has been achieved by using visible-light-induced photocatalysis. This approach was found to provide a sustainable alternative to Minisci benzylation reactions using readily accessible toluene derivatives as benzylating agents. The unique combination of photocatalysis, bromo radical mediation, and
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