Efficient microwave syntheses of the compounds Os 3(CO) 11L, L = NCMe, py, PPh 3

Abstract

The results of simple microwave-assisted ligand substitution reactions of Os 3(CO) 12 are reported. In a remarkably short period of time, the labile complex Os 3(CO) 11(NCMe) is prepared in high yield without the need for a decarbonylation reagent such as trimethylamine oxide. Microwave irradiation of Os 3(CO) 12 in a relatively small amount of acetonitrile is shown to be a useful first step in two-step, one-pot syntheses of the cluster complexes Os 3(CO) 11(py) and Os 3(CO) 11(PPh 3).