(2R,3S,4S,5R)-2,3,4,5,6-pentahydroxyhexanal → aldehydo-D-Xylose

Participants

Reaction Steps

In a preferred embodiment, the mixture fed onto the SMB comprises from about 5 wt. % to about 85 wt. % of a mixture of D-xylose and L-arabinose. Still further, the at least two components fed onto the SMB comprise D-xylose and L-arabinose. Still further, after the separation step L-arabinose is present in one eluent fraction at from about 85 wt. % to about 100 wt. %. Still further preferably, minor components, eg., galactose, are allowed to go into the D-xylose fraction, thereby providing an L-arabinose fraction comprised from about 85 wt % to about 100 wt % L-arabinose. In a separate embodiment, minor components, eg., galactose, are allowed to go with the L-arabinose fraction, thereby providing a D-xylose fraction comprised from about 85 wt. % to about 100 wt. % D-xylose. Still further, it is preferred that the D-xylose fraction is comprised of from about 85 wt. % to about 100 wt. % D-xylose. Those skilled in the art will recognize that these fractions can be additionally purified by crystallization.

Provenance & Evidence