Manganese-catalyzed Synthesis of Hydantoin Derivatives from Terminal Alkynes and Isocyanates

Abstract

Abstract Hydantoin derivatives were obtained by the reactions of terminal alkynes with isocyanates in the presence of a catalytic amount of a manganese complex, MnBr(CO)5. This reaction also proceeded using a rhenium complex, Re2(CO)10, or an iron complex, Fe(CO)5, as a catalyst.