Sorbopyranose 4- deoxy-4-fluoro

Deoxy-4-fluoro-D-fructose (552) was prepared (59%) by fermentation of 3-deoxy-3-fluoro-D-mannitol with Gluconobacter oxydans. The structure of 552 (fi-T) form) was confirmed by the n.m.r. spectrum, which resembles that of 4-deoxy-4-fluoro-Q -D-sorbopyranose (553) 552 was identical with one of the products obtained from the oxirane-ring opening of 3,4-anhy-dro-l,2-0-isopropylidene- -D-tagatopyranose with KHFj. 

O-Isopropylukne, di-Ac 5,5-D/-0-acetyl-4-deoxy-4-fluoro-l,2-0-isopropy-lidene-p-D-sorbopyranose [55908-24-2]... 

O-Isopropylidene, di-Ac 3,4-Di-O-acetyl-5-deoxy-5-fluoro-l,2-0-isopropy-lidene-a-L-sorbopyranose [55908-30-0]... 

Deoxy-5-fluoro-1,2- O -isopropylidene-a-D-glucofuranose, D-91 5-Deoxy-5-fluoro-1,2- O -isopropylidene- p-L-idofuranose, D-97 5-Deoxy-5-fluoro-1,2- O -isopropylidene-a-L-sorbopyranose, D-108 5-Deoxy-5-fluoro-1,2- O -isopropylidene-a-D-xylofuranose, D-120 5-Deoxy-5-fluorosorbose a-L-Pyranose-/orw, D-108 5-Deoxy-5-fluoroxylose D-Furanose-/orm, D-120 5-Deoxy-5-iodoarabinose L-form Ethylene dithioacetal, 2,3,4-tri-Ac, D-251... 

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