Novel and easy laboratory methods (novel Procedures 1—4) are presented for the oxidative mono-and diiodination of both activated and deactivated arenes, which gave the pure iodinated products in 62—89% yields. The reactions were carried out in the anhydrous, strongly acidic system, I 2/activated MnO 2/AcOH/Ac 2 O/concd H 2 SO 4, firstly at rt for 2 h, then at 45—55° C for 2—9 h. The resulting mixtures were poured into excess aq Na 2 SO ...
