Fy. Yan et al., CHEMOENZYMATIC SYNTHESIS OF FLUORINATED CARBOHYDRATES - 2-DEOXY-2-FLUORO-D-GLUCOSE AND 5-DEOXY-5-FLUORO-MANNO-GAMMA-LACTOL, Tetrahedron, 53(34), 1997, pp. 11541-11548
Two fluorinated hexoses were prepared from optically active cis-diols
1, which were obtained by microbial oxidation of the corresponding hal
obenzenes with E. coli JM109 (pDTG 601). The stereochemistry of the pr
oducts was controlled by careful introduction of fluorine onto the per
iphery of the cis-diols via opening of epoxides with tetrabutylphospho
niumfluoride dihydrofluoride (TBPF-DF). Oxidative cleavage of the cycl
ohexene skeleton followed by reductive cyclization led to the fluorina
ted hexoses. (C) 1997 Elsevier Science Ltd.