The Computational Study of the Mechanism of the Acid-Promoted Pyranoside-into-Furanoside Rearrangement
The pyranoside-into-furanoside (PIF) rearrangement is an uncommon but important process in carbohydrate chemistry. The quantum chemical investigation of the driving force of the recently discovered TfOH-catalyzed ring contraction revealed that it stemmed from the π–π interactions of the phenyl rings in benzoyl-protecti...