Synthesis of 2,3,4-Trideoxy-2,3,4-trifluoroglucose

J Org Chem. 2019 May 3;84(9):5899-5906. doi: 10.1021/acs.joc.9b00310. Epub 2019 Mar 28.

Abstract

There is an increasing interest in investigating how polyfluorination of carbohydrates modifies their physical and biological properties. An example that has caught much attention is 2,3,4-trideoxy-2,3,4-trifluoroglucose. Four syntheses of this compound have been reported, which are either low yielding or long (13 or more steps). We report a 6-step synthesis of 2,3,4-trideoxy-2,3,4-trifluoroglucose starting from levoglucosan. The solution-phase structure of an intermediate, 1,6-anhydro-2,4-dideoxy-2,4-difluoroallose, features a rare example of a bifurcated F···H(O)···F hydrogen bond and is compared to its crystal structure.

Publication types

  • Research Support, Non-U.S. Gov't