of tertiary and secondary benzylic C(sp3)-H, aliphatic C(sp3)-H, and drug-molecules-based C(sp3)-H bonds containing in substrates are well tolerated under our protocol. The simultaneous gram-scale synthesis and the ease of transformation of azide to amine collec-tively advocate for the potential application in the preparative syn-thesis. Good reactivity of tertiary benzylic C(sp3)-H bond and se-lectivity
Benzylic C–H Azidation Using the Zhdankin Reagent and a Copper Photoredox Catalyst
作者:Pauline T. G. Rabet、Gabriele Fumagalli、Scott Boyd、Michael F. Greaney
DOI:10.1021/acs.orglett.6b00512
日期:2016.4.1
azidation method for C–N bond formation at benzylic C–H positions is described using copper-catalyzed visible light photochemistry and the Zhdankin azidoiodinane reagent. The method is applicable to a wide range of substrates bearing different functional groups and having a primary, secondary, or tertiary benzylic position, and is thought to proceed through a radical chain reaction.