Hypervalent Iodine Reagents as Powerful Electrophiles

Hypervalent iodine reagents have been investigated as very powerful electrophiles in many different reactions. Efficient formation of new carbon-heteroatom bonds as well as carbon-carbon bonds can be achieved typically under mild reaction conditions with these metal-free reagents. Enantiomerically pure reagents provide the potential for stereoselective reactions and this aspect is highlighted in this account.