Synthesis of imidazolidin-2-ones employing dialkyl carbonates as an ecofriendly carbonylation source

Article abstract of DOI:10.1039/c4ra08048c

A new approach to the synthesis of imidazolidin-2-ones by carbonylation of vicinal diamines with dialkyl carbonates using Pb(NO₃)₂ and Cu(ii) salts as catalysts has been described in the present protocol. A comparative study using Cu(ii) salts and Pb(NO₃)₂ as catalysts has suggested Cu(NO₃)₂ and CuCl ₂·2H₂O salts to be as promising as Pb(NO ₃)₂ and can replace the latter in the carbonylation reactions employing dialkyl carbonates. the Partner Organisations 2014.