Since 1990s, the application of organo-iodine reagents as oxidant in organic synthesis went
through explosive progress. In early times, most of organo-iodine reagents were used as stoichiometric
terminal or co-oxidants in oxidative reactions, which inevitably led a lower atom coefficient of utilization
and environmental issues. In this regard, it is very urgent to develop varies of efficient approaches
of the catalytic utilization of organo-iodine reagents in organic synthesis. Recently, more and more iodine
compounds were used as organo-catalysts for many kinds of reactions, which were revolutionary
progress for iodine chemistry, and could also meet the need of green chemistry. In this review, we presented
an overview of catalytic utilization of active iodine reagents as organo-catalysts in organic synthesis
and also some successful examples for asymmetric catalysis. We focused on the recent synthetic
strategies, applications of organo-iodine reagents and its mechanism as organo-catalysts, and finally
gave a perspective of future development.
Keywords: Active iodine reagent, hypervalent iodine, iodoarene, organo-catalyst, organo-iodine reagent, quaternary ammonium
iodine, tetrabutylammonium iodide.
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