1302. Bis(pyridine)iodonium Tetrafluoroborate

Nomenclature

CAS number: 15656-28-7
Bis(pyridine)iodine(1+) tetrafluoroborate(1-); Barluenga's reagent; IPy2BF4.
C10H10IN2.BF4; mol wt 371.91.
C 32.29%, H 2.71%, I 34.12%, N 7.53%, B 2.91%, F 20.43%.

Description and references

Mild source of iodonium ions in organic synthesis. Prepn: J. Barluenga et al., Angew. Chem. Int. Ed. 24, 319 (1985). Oxidation of alcohols: idem et al., Chem. Eur. J. 10, 4206 (2004). Brief review: K. Mu~niz, Synlett 1999, 1679. Review of iodination chemistry: J. Barluenga, Pure Appl. Chem. 71, 431-436 (1999).

Chemical structure

Properties

Crystals from dichloromethane, mp 149-151° (dec). Store under inert atmosphere at 4° in the dark.

Use

Iodination and oxidation reagent.