Recent progress in the homogeneous gold-catalysed cycloisomerisation reactions.

In the last two decades, interest in reactions catalysed by gold complexes has tremendously increased due to their ability to tolerate a variety of functional groups and their capability to activate various unsaturated groups. In this review, gold-catalysed cycloisomerisation reactions of ynamides, diynes and 1, n -enynes have been summarized. These gold-catalysed cycloisomerisation reactions open new opportunities for synthesising a range of new complex polycyclic chemical moieties in one step. Gold-catalysed cycloisomerisation is a valuable way for synthesising fused spiro carbocycles, BODIPY cores, bicyclo[3.2.1]oct-2-ene, dihydro benzo[ b ]thiepine, disubstituted furans, spiroindolines, bridged [ n .2.1] skeletons, etc .