A Highly Active System for the Metal-Free Aerobic Photocyanation of Tertiary Amines with Visible Light: Application to the Synthesis of Tetraponerines and Crispine A
作者:Julio Cesar Orejarena Pacheco、Alexander Lipp、Alexander M. Nauth、Fabian Acke、Jule-Philipp Dietz、Till Opatz
DOI:10.1002/chem.201504845
日期:2016.4.4
A highly efficient metal‐free catalytic system for the aerobic photocyanation of tertiary amines with visible light is reported. The use of air as terminal oxidant offers an improved safety profile compared with pure oxygen, the used compact fluorescent lamp (CFL) light sources are highly economical, and no halogenated solvents are required. This system not only proves to be effective for a wide variety
报道了一种高效的无金属催化体系,用于可见光下叔胺的有氧光致氰化。与纯氧相比,使用空气作为终端氧化剂可提高安全性,所使用的紧凑型荧光灯(CFL)光源非常经济,并且不需要卤化溶剂。该系统不仅证明对多种三烷基胺,药物和生物碱有效,而且显着还使有机染料有史以来最低的催化剂负载量(0.00001 mol%或0.1 ppm)。对获得的α-氨基腈进行了Bruylants反应和C-烷基化/脱氰,以证明复杂分子的后功能化。