JOURNAL OF CHEMICAL EDUCATION
MORE MNEMONICS THE mnemonic by Hunter (THISJOURNAL, 32, 584 (1955)) for naming the aldohexoses requires that the student transpose a series of straighkhain representations into the modern perspective ring representations of the aldohexoses. A simpler mnemonic for the ring structures has been d e vised. This can easily be used for the more familiar straight chains. The partial structure (on the left below) is first simplified to a straight chain (on the right) and then only the OH groups are indicated.
D-Allose none up
4
3
2
none down D-talose
D-gulose first up
+ A
4
D-~~UCOE~
second up
+
4
first down second down D-mannose D-idose All guests gladly alter table manners into gaiety
D-altrose third up
I
I
4
3
2
third down D-galactose
Example: glucose (second up)
W. C. J. HOLLENBERG
