Herein, we describe a photoinitiated and regioselective synthesis of 2-substituted indoles under mild reaction conditions. This biologically privileged scaffold was accessed in good yields from N-aroylbenzotriazoles, a quencher class previously identified using our mechanism-based luminescence screening, and terminal alkynes in the presence of a photocatalyst and blue light irradiation. This straightforward
Diverse Visible‐Light‐Promoted Functionalizations of Benzotriazoles Inspired by Mechanism‐Based Luminescence Screening
作者:Michael Teders、Adrián Gómez‐Suárez、Lena Pitzer、Matthew N. Hopkinson、Frank Glorius
DOI:10.1002/anie.201609393
日期:2017.1.16
Three new visible‐light‐promotedfunctionalizations of benzotriazole substrates were discovered using a mechanism‐basedscreening method. ortho‐Thiolated, borylated, and alkylated N‐arylbenzamide products were obtained under mild reaction conditions in a new denitrogenative synthetic approach to functionalized aniline derivatives. The functional group tolerance of the borylation reaction was further