Catalytic amounts of CBr4 mediated dehydrogenative coupling of isochromans with aromatic ketones†
Abstract
In the presence of catalytic amounts of CBr4 (a metal-free mediator), an unexpected oxidative dehydrogenative coupling of isochromans with ketones occurred to construct new Csp3–Csp3 bonds. The reactions were performed under simple solvent-free aerobic conditions.