Azido-alkynylation of alkenes through radical-polar crossover

被引:11
作者
Borrel, Julien [1 ]
Waser, Jerome [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Catalysis & Organ Synth, EPFL SB IS LCSO, BCH 4306, CH-1015 Lausanne, Switzerland
基金
瑞士国家科学基金会;
关键词
TRANSITION-METAL-FREE; DECARBOXYLATIVE ALKYNYLATION; CLICK CHEMISTRY; ALPHA; ALPHA-DIFLUOROARYLACETIC ACIDS; ENANTIOSELECTIVE SYNTHESIS; STABLE AZIDOIODINANES; ORGANIC AZIDES; AZIDATION; PYRROLE; DERIVATIVES;
D O I
10.1039/d3sc03309k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report an azido-alkynylation of alkenes allowing a straightforward access to homopropargylic azides by combining hypervalent iodine reagents and alkynyl-trifluoroborate salts. The design of a photocatalytic redox-neutral radical polar crossover process was key to develop this transformation. A variety of homopropargylic azides possessing electron-rich and -poor aryls, heterocycles or ether substituents could be accessed in 34-84% yield. The products are synthetically useful building blocks that could be easily transformed into pyrroles or bioactive amines.
引用
收藏
页码:9452 / 9460
页数:9
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