Page 1. Phosphorus, Sulfur and Silicon, 1998, Vol. 134/135, pp. 463474 ... Printed in Malaysia THE REACTION OF UNSATURATED CARBONYL COMPOUNDS WITH "ACTIVATED" SULFUR PART 3. 1 REACTION COURSE UGO CHIACCHIO, ANTONINO CORSARO, VENERANDO PISTARA, ANTONIO RESCIFINA and GIOVANNI PURRELLO* Dipartimento di Scienze Chimiche, Universita di Catania, Male A. Doria 6, 95125 Catania (Italy) ...