Study On The Difunctionalization Of Styrenes

Organosulfur and organophosphorus compounds are two classes of important compounds, they are prepared via C-S and C-P bond formation in common. Here reports the new protocols for effective formation of C-S and C-P bonds.This thesis contains two parts. The first part develops a facile and efficient protocol of oxythiocyanation of styrenes with ammonium thiocyanate. The reaction proceeded under mild conditions to afford the phenacylthiocyanates in moderate to good yields. This method is straightforward, green and cost-effective, requires no catalyst, additives or other oxidant except O2. The second part involves the reaction of phosphoruscentered radicals with styrenes and anilines catalysed by silver nitrate to afford diphenyl(2-aryl-2-(arylamino)ethyl)phosphine oxides. This reaction has advantages of mild reaction conditions, wide scope of substrates, good selectivity and good yield.