A neighboring group participation strategy: facile synthesis of 3,5-di-O-benzoyl-2-C-methyl-d-arabino-γ-lactone

The Synthesis of Fluorinated Carbohydrates Using Sulfuryl Fluoride as the Deoxyfluorination Reagent

Fluorination of carbohydrates has been one of the strategies to increase their enzymatic and chemical stabilities and reduce their hydrophilicities, making this modification attractive for drug discovery purposes. The synthesis of monofluorinated carbohydrates was achieved under mild conditions by using SO₂F₂ as the deoxyfluorination reagent in the presence of a base without extra fluoride additives. This method features low toxicity, easy availability, low cost, and high efficiency and can be subjected to diverse sugar units.

Direct Deoxyfluorination of Alcohols with KF as the Fluorine Source

This report describes a method for the deoxyfluorination of alcohols with KF as the fluorine source via in situ generation of highly active CF₃SO₂F. Diverse functionalities, including halogen, nitro, ketone, ester, alkene, and alkyne, are well tolerated. Mild conditions, a short reaction time, and a wide substrate scope make this method an excellent choice for the construction of C-F bonds.

Deoxyfluorination of alcohols with aryl fluorosulfonates

Aryl fluorosulfonates are developed as a deoxyfluorinating reagent in the transformation of primary and secondary alcohols into the corresponding alkyl fluorides. These reagents feature easy availability, low-cost, high stability and high efficiency. Diverse functionalities including aldehyde, ketone, ester, halogen, nitro, alkene, and alkyne are well tolerated under mild reaction conditions.