Formation of a caged rhodium complex via an intramolecular, metal-mediated [2 + 2 + 1] cycloaddition of alkynes and CO†
Abstract
An organometallic rhodium cage complex has been synthesized by a metal-mediated intramolecular [2 + 2 + 1] cycloaddition, in the first example of such a process where the cyclisation step completes a cage around the metal centre.