Reactant involved in:Cyclodehydration of diols;Synthesis of conjugates of betulin derivatives used as anti-HIV agents;Preparation of dimeric peptide antagonists of IgG-FcRn interaction;Microwave-assisted protection of glutaraldehyde;Synthesis of glycyrrhetinic acid derivatives for proteasome inhibition;Catalytic, asymmetric transannular aldolizations. Reactant involved in:Cyclodehydration of diols;Synthesis of conjugates of betulin derivatives used as anti-HIV agents;Preparation of dimeric peptide antagonists of IgG-FcRn interaction;Microwave-assisted protection of glutaraldehyde;Synthesis of glycyrrhetinic acid derivatives for proteasome inhibition;Catalytic, asymmetric transannular aldolizations.