Organometallic compounds thiophene, reactions with

Catalysts are heterogeneous sulfided nickel (or cobalt) molybdenum compounds on a y-alumina. The reaction has been extensively studied with substrates such as thiophene (Figure 2.40) as the model compound mainly with the aims of improving the catalyst performance. The mechanism on the molecular level has not been established. In recent years the reaction has also attracted the interest of organometallic chemists who have tried to contribute to the mechanism by studying the reactions of organometallic complexes with thiophene [41], Many possible co-ordination modes for thiophene have been described. 

A great deal of carbanirms, generated from C-H-active compounds, the Grignard reagents, the cyanide ion, all kinds of organometallic carbon-lithium derivatives, aromatic amines, phenols, pyrroles, indoles, thiophenes, furans, and other organic compounds with electron-rich carbon atoms have been involved in the Sn reactions as C-nucleoplules [1, 2, 10, 11, 114—117]. 

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