Palladium catalysed cascade hydrostannylation-bis-cyclisation- intramolecular anion capture. Routes to bridged- and spiro-cyclic small and macrocyclic heterocycles

Article abstract of DOI:10.1016/0040-4039(96)00842-8

Palladium catalysed cascade hydrostannylation of terminal alkynes in α,ω-enynes at 0-25°C followed by bis-cyclisation initialed by insertion of Pd(0) into an aryl iodide at 100-110°C and terminating in an intramolecular Stille coupling provides a wide ran