J. Lalot et al., Efficient syntheses of 1-S-alkyl-1-thio-L-ribitols, D-lyxitols and L-xylitols from D-pentono-1,4-lactones, CARBOHY RES, 335(1), 2001, pp. 55-61
The thioalkylation of unprotected 5-bromo-5-deoxy-D-ribono, D-arabinono, an
d D-xylono-1,4-lactone was performed with the alkylthiol-sodium hydride rea
gent. The corresponding 5-S-alkyl-5-thio-D-pentono-1,4-lactones were isolat
ed in good yields (82-95%). Reduction with NaBH4 of these derivatives gave
the 1-S-alkyl-1-thio-L-ribitols, D-lyxitols and L-xylitols in 85-96% yields
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