Vv. Grushin et H. Alper, SIMPLE AND EFFICIENT PALLADIUM-CATALYZED CARBONYLATION OF IODOXYARENES IN WATER UNDER MILD CONDITIONS, Journal of organic chemistry, 58(18), 1993, pp. 4794-4795
Iodoxyarenes (ArIO2) readily react with CO (1 atm) in water, in the pr
esence of Na2[PdCl4] (0.1%) and Na2CO3 at 40-50-degrees-C, to give the
corresponding carboxylic acids, ArCOOH, in 55-89% isolated yield. Par
ticularly attractive features of the reaction are that, unlike most io
doarenes, ArIO2 can be carbonylated in aqueous media without any organ
ic solvents, due to their solubility in water and high reactivity.