Environmentally Benign, Highly Efficient and Expeditious Solvent‐Free Synthesis of Trisubstituted Methanes Catalyzed by Sulfated Polyborate

Highly efficient and environmental friendly one‐pot synthesis of trisubstituted methanes form aldehydes and heteroaryls with sulfated polyborate catalyst was conveniently performed under solvent‐free grinding condition at room temperature. The catalyst is recyclable up to five consecutive runs and column chromatography‐free isolation of the trisubstituted methanes in excellent yields was achieved. Highly efficient and environmental friendly one‐pot synthesis of triaryl methanes form aldehydes and heteroaryls with recyclable sulfated polyborate catalyst was conveniently performed in multigram scale under solvent free grinding conditions at room temp. Moreover, this protocol can tolerate a wide variety of substituents along with enhanced product purity which promises an economical as well as environmentally benign alternative route to produce triaryl methanes.