Reactions of Selected Aromatic Thioketones with Dodecarbonyltriiron

Abstract

AbstractDodecacarbonyltriiron reacts with 3,3,5,5‐tetraphenyl‐1,2,4‐trithiolanes (1e) to give the ortho‐metalated complex Fe2(CO)6[κ,μ‐S,η2‐(C13H10S)] (9a), complexes of the type (Ph2C)S2Fe2(CO)6 and the well known trinuclear complex Fe3S2 (CO)9 as by‐products. Complex 9a can also be obtained from the reaction of Fe3(CO)12 with thiobenzophenone (2a). In a similar way, 4,4′‐bis(dimethylamino)thiobenzophenone (2b) reacts with Fe3(CO)12 to give Fe2(CO)6[κ,μ‐S,η2‐(C17H20N2S)] (9b). The cyclic aromatic thioketones such as dibenzosuberenethione (2c) and xanthione (2d) react with Fe3(CO)12 to give the cyclometalated products Fe2(CO)6[κ,μ‐S,η2‐(C15H12S)] (9c) and Fe2(CO)6[κ,μ‐S,η2‐(C13H8OS)] (9d), respectively, and a small amount of Fe3S2(CO)9. Complexes 9a–d have been characterized by IR and NMR spectroscopies, elemental analyses, and X‐ray single crystal structure analyses.