Streamlined Synthesis of C(sp<sup>3</sup>)-Rich <i>N</i>-Heterospirocycles Enabled by Visible-Light-Mediated Photocatalysis
作者:Nils J. Flodén、Aaron Trowbridge、Darren Willcox、Scarlett M. Walton、Yongjoon Kim、Matthew J. Gaunt
DOI:10.1021/jacs.9b03372
日期:2019.5.29
We report a general visible-light-mediated strategy that enables the construction of complex C(sp3)-rich N-heterospirocycles from feedstock aliphatic ketones and aldehydes with a broad selection of alkene-containing secondary amines. Key to the success of this approach was the utilization of a highly reducing Ir-photocatalyst and orchestration of the intrinsic reactivities of 1,4-cyclohexadiene and