RT Journal Article T1 Trifluoroacetic anhydride promoted tandem conjugate addition of boronic acids/acetal ring opening A1 Roscales García, Silvia A1 García Csaky, Aurelio AB A new stereoselective tandem reaction consisting of the metal-free conjugate addition of boronic acids followed by an intramolecular ring opening of a cyclic acetal has been disclosed. Optically pure polysubstituted tetrahydropyrans have been synthesized diastereoselectively by this new reaction. Two new C–C bonds and up to three stereocenters are formed in a single step, allowing the generation of quaternary stereocenters. YR 2012 FD 2012 LK https://hdl.handle.net/20.500.14352/114679 UL https://hdl.handle.net/20.500.14352/114679 LA eng DS Docta Complutense RD 28 abr 2025