Vv. Zhdankin et al., A GENERAL-APPROACH TO ARYL(CYANO)IODONIUM TRIFLATES - VERSATILE IODONIUM TRANSFER REAGENTS, Tetrahedron letters, 34(43), 1993, pp. 6853-6856
Aryl(cyano)iodonium triflates (ArI+CN -OTf. Ar = Ph, 4-CF3C6H4, 3,5-(C
F3)2C6H3, 4-FC6H4) can be prepared in two steps from the Corresponding
aryliodides by oxidation with pertrifluoroacetic acid and subsequent
reaction with Me3SiOTf and Me3SiCN. These compounds react with tributy
ltin derivatives of acetylenes, aromatic or heteroaromatic compounds u
nder mild conditions forming the corresponding iodonium salts 5, 7, 9
in good yield.