saccharides are polyhydroxy aldehydes or ketones, that is ,they are molecules with more than one hydroxyl group[-OH] and a carbonyl group [c=o] either at the terminal carbon atom [aldose] or the second carbon atom [ketose].
Typically aromatic groups attached to functional groups increase the reaction over that of an aliphatic groups. Aromatic aldehydes (e.g. benzaldehyde, C6H5.CHO), are also known which undergo a number...