PRIMEVERULOSE (6-O-BETA-D-XYLOPYRANOSYL-D-FRUCTOSE) AND SOME DERIVATIVES THEREOF

Primeverulose (6-O-β-D-xylopyranosyl-D-fructose) has been prepared by the partial rearrangement of primeverose (6-O-β-D-xylopyranosyl-D-glucose) with aqueous ammonia followed by separation of the two disaccharides on a cellulose column. The syrupy primeverulose had [α]d20 -27.5° in methanol, and was characterized by its crystalline (2,5-dichlorophenyl)hydrazone. Some derivatives that are common to both primeverose and primeverulose, namely, the phenylosotriazole, phenylosotriazole hexaacetate, and (2,5-dichlorophenyl)osazone, are also described. © 1969.