Cyclotrimerisation of isocyanates catalysed by low-coordinate Mn(<scp>ii</scp>) and Fe(<scp>ii</scp>) m-terphenyl complexes

Abstract

Two- and three-coordinate m-terphenyl complexes of manganese and iron are efficient catalysts for the selective cyclotrimerisation of primary aliphatic isocyanates affording isocyanurates in short reaction times and under mild conditions.