1. Title
Projections of
Glucose

2. Fischer Projection Fischer Projections of D-Glucose CHO OH HO CH2OH3 4 5
CHO OH
HOH2C HO =
rotate C5 about C4 by 120o
form hemiacetals between
C5-OH and C1
D-(+)-Glucose

3. Fischer Anomers Fischer Projections of D-Glucopyranose Anomers right
alpha
left
beta HO C C OH OH OH HO HO OH OH O O
CH2OH
CH2OH
b-D-(+)-Glucopyranose
a-D-(+)-Glucopyranose

4. Haworth Anomers Haworth Projections of D-Glucopyranose Anomers
up (top)
beta
down (bottom)
alpha
b-D-(+)-Glucopyranose
a-D-(+)-Glucopyranose

5. Conformational Anomers
Chair Conformations of D-Glucopyranose Anomers
Conformational Anomers
down (bottom)
alpha
up (top)
beta O H O H
b-D-(+)-Glucopyranose
a-D-(+)-Glucopyranose

6. Mnemonic How an Old Salt Remembers the D-Series bow starboard port
stern
starboard
port
right
left
green light
red light
fewer letters
more letters
alpha
beta
Port-left-red and starboard-right-green. All the words with fewer letters go together. The red light is on the left side (port) of a ship or plane. Likewise the alpha anomer in the D-series has the anomeric hydroxyl on the right in the Fischer projection, on the top (up) in the Haworth projection the conformational structure.
down up
bottom
top

7. The End
The End