Efficient syntheses of L-ribose and 2-deoxy L-ribose from D-ribose and L-arabinose

Article abstract of DOI:10.1016/S0040-4039(97)00870-8

Interconversion of the ends of D-ribose 2 afforded in 6 steps and 45% overall yield L-ribose 1, from which 2-deoxy L-ribose 12 was easily prepared. In addition, the inexpensive L-arabinose 13 was also converted into 2-deoxy L-ribose 12 via a reductive radical rearrangement of the arabinopyranosyl bromide 14.