Iodosylbenzene

UsesOxygen transfer reagent for stiochiometric or catalytic cross-functionalization of alkenes, alcohols, sulfides, and organometallo Compounds.Iodosobenzene is used as an oxidizing and acetoxylating agent in organic synthesis. It is actively involved in the preparation of (Z)-3,7-dimethyl-2,6-octadien-1-al(neral) from (Z)-3,7-dimethyl-2,6-octadien-1-ol (nerol) in presence of 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO). It is a useful reagent for the synthesis of a wide variety of heterocyclic compounds. It is also used in the Pd-catalyzed 2-arylation of indoles.

Useslodosobenzene is a relatively new, selective oxidizing agent which is particularly useful for the preparation of sulfoxides from unsaturated or otherwise sensitive sulfides. The preparation of diallyl, di-2-hydroxyethyl and phenyl 2-chloroethyl sulfoxides illustrates its use.Iodosobenzene diacetate behaves similarly and oxidizes diphenyl and 4-nitro-phenyl 4'-carboxyphenyl sulfide exclusively to the sulfoxides. This reagent failed, however, to oxidize bis(2-nitro-4-trifuoromethylphenyl) sulfide and in the case of bis(2-aminophenyl) sulfide it gave complex products. Iodosobenzene diacetate caused diacetoxylation of the heterocycle of 2,5-diphenyl-1 ,4-dithiadiene rather than oxidation of the sulfide function, and with 2,5-diphenylI-1 ,4-dithiadiene-1-oxide unexpected results were obtained, as discussed in section C-4.Organic Sulfur Compounds