Transition-metal-catalyzed cleavage reactions of carbon−carbon bonds have been recognized as powerful tools in organic transformations.(1) Various unique and useful catalytic processes involving C−C single and double bonds cleavage have recently been developed.(2) What has remained unexplored is the cleavage of C−C triple bond, which is one of the most challenging subjects in modern synthetic organic chemistry.(3) Most studies on alkyne cleavage have ...
