Day: September 23, 2026

Figure $6.3.4$: Fischer projections of enantiomers of glucose (left) and fructose (right). By convention, the penultimate (next-to-last) carbon atom has been chosen as the carbon atom that determines if a sugar is D or L. It is the chiral carbon farthest from the aldehyde or ketone functional group. D and L sugars of the same monosaccharide are enantiomers of one another (Figure $6.3.4$). When …