Highly diastereoselective samarium diiodide induced ketyl cyclisations of indole and pyrrole derivatives - Scope and limitations
Here we summarise our results for SmI2-induced 5-exo-trig to 8-exo-trig reductive cyclisations of suitably substituted indole and pyrrole derivatives. All precursors were easily prepared by simple N-alkylation or N-acylation of indole and pyrro