SOME RECENT ADVANCES IN THE CHEMISTRY OF DICARBA-CLOS O-DODECA-

Experimental data on the mutual rearrangements of isomeric dicarba-closo-dodecaboranes(12) and their B-halogen derivatives are reviewed. Reactions involving electron transfer to dicarba-closo-dodecaboranes(12), and the properties of the resulting dodecahydrodicarba-nido-dodecaborates(2 —) as intermediates of the rearrangements of 1.7- and 1,12-dicarba-closo-dodeca-boranes(12) are discussed. Attention is also paid to the introduction of an NH2 group into 1,2-dicarba-closo-dodecaborane(12) via the formation of dodecahydro-1,2-dicarba-nido-dodecaborate(2 —) and to the reactions of 3-amino- 1,2-dicarba-closo-dodecaborane ( 12)