synthesis, particularly in the case of C(sp3)–N formation, has remained a significant challenge to the synthetic community. Herein we report a procedure for α-C(sp3)–H amination of ethereal compounds through use of azodicarboxylates as the nitrogen source and freely-available atmospheric oxygen to access ethereal radical intermediates via aerobic C–H activation. The use of fluorinated alcohols as solvent
Phenylglyoxylic Acid: An Efficient Initiator for the Photochemical Hydrogen Atom Transfer C−H Functionalization of Heterocycles
作者:Giorgos N. Papadopoulos、Maroula G. Kokotou、Nikoleta Spiliopoulou、Nikolaos F. Nikitas、Errika Voutyritsa、Dimitrios I. Tzaras、Nikolaos Kaplaneris、Christoforos G. Kokotos
DOI:10.1002/cssc.202001892
日期:2020.11.20
C−H functionalization at the α‐position of heterocycles has become a rapidly growing area of research. Herein, a cheap and efficient photochemical method was developed for the C−H functionalization of heterocycles. Phenylglyoxylic acid (PhCOCOOH) could behave as an alternative to metal‐based catalysts and organic dyes and provided a very general and wide array of photochemical C−H alkylation, alkenylation