Showing papers on "Koenigs–Knorr reaction published in 1961"
TL;DR: This chapter discusses Glycosyl fluorides and their derivatives and glycosyl azides and carbohydrates containing fluorine at nonglycosidic carbon atoms and the proportionality relations that exist between the optical rotations and the diameters of the respective halogen atoms.
Abstract: Publisher Summary This chapter discusses glycosyl fluorides and their derivatives and glycosyl azides and carbohydrates containing fluorine at nonglycosidic carbon atoms. Poly- O -acetylglycosyl halides of the carbohydrates investigate the proportionality relations that exist between the optical rotations and the diameters of the respective halogen atoms. The result is probably dependent on the attack of the active species––acetyl fluoride––at the anhydro-ring oxygen atom. The normal method of the preparation of the less stable anomers of the acetylated glycosyl fluorides involves the action of silver fluoride on the acetylated glycosyl halide of the opposite configuration at the glycosidic carbon atom. Unlike any of the other acetylated glycosyl halides, the fluorides may be deacetylated without the loss or isomerization of the halide function.
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