Enantioselective synthesis of planar-chiral benzosiloloferrocenes by Rh-catalyzed intramolecular C-H silylation

The first synthesis of planar-chiral benzosiloloferrocenes was achieved by the intramolecular reaction of 2-(dimethylhydrosilyl)-arylferrocenes. The enantioselective cross dehydrogenative coupling of an sp(2) C-H bond of ferrocene with a Si-H bond proceeded efficiently with the use of a Rh-chiral diene catalyst.