“…In order to conveniently obtain deuterated compounds to meet the demands of deuterated molecule research, organic chemists have developed many novel deuteration methods in recent years that are mild, efficient, and highly selective. These novel methods can be classified based on the different functional groups of the substrates, including deuteration of unsaturated bond, 12 deuteration of halogen bond, 13 decarboxylative deuteration, 14,15 deoxygenative deuteration, 16 deamination deuteration, 17 and so on 18,19 . Among these novel methods, decarboxylative deuteration has been widely studied.…”