Ueber eine neue Klasse jodhaltiger, stickstofffreier organischer Basen

The discovery and development of onium salt cationic photoinitiators

“…As I contemplated preparing these compounds, I returned to the first report of their synthesis in 1894 by Hartmann and Meyer. 10 On reading this early account, I was impressed greatly with the skill and insight of these workers that had allowed them to assign the correct, albeit unusual structure to these hypervalent iodine compounds. In the 1950s, Beringer and Gindler 11 developed several novel routes for the preparation of these compounds and extensively explored their reaction chemistry.…”

On the mechanism of α-phenylation of β-keto esters with diaryl-λ3-iodanes: evidence for a non-radical pathway

“…1,2 They are versatile reagents in organic synthesis and act as highly reactive species in nucleophilic aromatic substitutions, which occur regioselectively at the ipso positions. 2 Their high reactivity is mostly due to the excellent nucleofugality of the aryl-λ 3 -iodanyl group, which shows a leaving group ability about 10 6 times greater than that of triflate.…”

Diaryliodonium Salts in Organic Syntheses: A Useful Compound Class for Novel Arylation Strategies

“…6 Their structure consists of two aryl moieties connected to the iodine and an anion (X-) mostly halogen, triflate, tosylate or tetrafluoroborate ( Figure 1a). Diaryliodonium salts with halide anion are less soluble in most organic solvents, while triflates and tetrafluoroborates have better solubility.…”