Reacción #214839

Ecuación de reacción

diphenyliodonium chloride

fluoroboric acid

phosphorous acid

diphenyliodonium bisulfate

→

diphenyliodonium fluoroborate

Disolventes

water

Condiciones de reacción

Tratamiento posterior

1. 1
   Otrois prepared by the addition of 60° C. of an aqueous solution
2. 2
   workup.ADDITIONcontaining 29.2 g
3. 3
   OtroThe silver halide that precipitates
4. 4
   Filtraciónis filtered off
5. 5
   Concentraciónthe filtrate concentrated

Procedimiento

The aromatic iodonium complex salts may be prepared by metathesis of corresponding aromatic iodonium simple salts (such as, for example, the diphenyliodonium bisulfate) in accordance with the teachings of Beringer, et al., J. Am. Chem. Soc. 81, 342 (1959). Thus, for examples, the complex salt diphenyliodonium tetrafluoroborate is prepared by the addition of 60° C. of an aqueous solution containing 29.2 g. (150 millimoles) silver fluoroborate, 2 g. fluoroboric acid, and 0.5 g. phosphorous acid in about 30 ml. of water to a solution of 44 g. (139 millimoles) of diphenyliodonium chloride. The silver halide that precipitates is filtered off and the filtrate concentrated to yield diphenyliodonium fluoroborate which may be purified by recrystallization.

Fuente