central goal in catalysis. This would be especially interesting when the reactivity and selectivity patterns can be tuned. Herein, we introduced the first Mn-catalyzed selective C-alkylation and olefination of fluorene, and indene with alcohols. Various substrates including benzylic, heteroaromatic, and aliphatic primary and secondary alcohols are employed as alkylating agents. Mechanistic investigations
An efficientmethod for the synthesis of benzofulvenes 3 was demonstrated via the rapid condensation of indene with various aldehydes catalyzed using cesium hydroxide monohydrate. Single condensation products 3 and double condensation products 4 can be obtained as main products respectively by changing the ratio of the reactants easily.