Copper porphyrin catalyzed alkane C–H bond functionalization with aldehydes via cross-dehydrogenative
coupling (CDC) using DTBP oxidant has been firstly described in nonsolvents or nonadditives
system. Different aryl/heteroaryl carboxylic esters were obtained in good to excellent
yields depending on the aldehyde derivatives. This CDC reaction catalyzed by copper
porphyrin has the advantages of shorter reaction time, lower reaction temperature,
and catalyst loading as well as the aerobic reaction atmosphere.
Key words
copper porphyrin - aldehydes - alkanes - cross-dehydrogenative coupling - C–H activation