Hexoses 2,4-dideoxy, synthesis

An important step in the synthesis of paratose (3,6-dideoxy-n-rtfoo-hexose) involved the conversion of methyl 3-chloro-3-deoxy-/8-D-allopyranoside into methyl 3,6-dichloro-3,6-dideoxy-/8-D-allo-pyranoside in 33% yield.359... 

J. Hill, L. Hough, and A. C. Richardson, Nucleophilic replacement reactions of sulphonates II. The synthesis of derivatives of 4,6-dithio-D-galactose and -D-glucose and their conversion into 4,6-dideoxy-D-xy/o hexose, Carbohydr. Res., 8 (1968) 19-28. 

E. H. Williams, W. A. Szarek, and J. K. N. Jones, Synthesis of paratose (3,6-dideoxy-D-rifw-hexose) and tyvelose (3,6-dideoxy-D-orahmo-hexose), Can. J. Chem. 49 796 (1971). 

G. Siewert and O. Westphal, Substitution of secondary p-tolylsulfonyloxy groups by iodine. Synthesis of 4-deoxy- and 4,6-dideoxy-D-xylo-hexose, Liebigs Atmalen der Chemie 720 161... 

Enantioselective synthesis of 2,3-dideoxy-D-erythro and D-z7zreo-hexoses has been achieved, in several steps, starting from furfural.247... 

W. R. Roush and R. J. Brown, Total synthesis of carbohydrates Stereoselective syntheses of 2, 6-dideoxy-D-arabino-hexose and 2,6-dideoxy-D-ribo-hexose, J. Org. Chem., 47 (1982) 1371-1373. 

O. Varela, A. Fernandez Cirrelli, and R. M. de Lederkremer, P-Elimination in aldonolactones. Synthesis of 3,6-dideoxy-L-araWno-hexose (Ascarylose), Carbohydr. Res., 70 (1979) 27-35. 

K. Kefurt, Z. Kefurtova, and J. Jary, Synthesis of 4,6-dideoxy-D-arah/no-hexose, 3,4, 6-trideoxy-D-eryt/iro- and threo-hexoses, 2,4,6-trideoxy-D-erytAro-hexose, and their derivatives, Collect. Czechoslov. Chem. Commun., 40 (1975) 164-173. 

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