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Beilstein J. Org. Chem. 2010, 6, No. 62, doi:10.3762/bjoc.6.62
Graphical Abstract
Figure 1: Vicinal difluoride containing building blocks.
Scheme 1: Synthesis of meso-2,3-difluoro-1,4-butanediol.
Scheme 2: Monoprotection of 3, and activation of the remaining alcohol.
Scheme 3: Reaction of 12 leading to defluorinated products.
Figure 2: Molecular overlay of both conformers of 7.
Figure 3: Crystal packing of 7 viewed along the b axis. Short contacts (see text) are shown in light blue.
Figure 4: Crystal structure of 3.
Figure 5: Crystal packing of 3 viewed along the c axis. H-bonds are shown in light blue.