The First Flights of a Molecular Shuttle Transporting Elements: Easy One-pot Formation of Organic Cyclic Arsanes, Stibanes and Bismutanes

New arsenic-, antimony- and bismuth-donor reagents are used in a one-pot synthesis of cyclic arsanes, stibanes and bismutanes through a procedure in which the simultaneous formation of three C As, C Sb or C Bi bonds is achieved. At the end of the reaction, the element-donor reagent can be easily re-formed in situ and recycled, as in a catalytic process.