Table 2. Redox Neutral Carbonylative Heterocyclizations.


The ratio of 9l–r:8l–r is given in parentheses (determined by 1H NMR analysis of crude material).
Dioxane was used as solvent.


The ratio of 9l–r:8l–r is given in parentheses (determined by 1H NMR analysis of crude material).
Dioxane was used as solvent.