Compare the Fischer projection of D-glucose to the final Haworth: C2–OH is on therightside of the Fischer and ends up on thebottomof the Haworth. C3–OH is on theleftside of the Fischer and ends up on thetopof the Haworth C4–OH is on therightside of the Fischer and end...
Now, let’s do a furanose. β-D-ribose is drawn below. Use the same protocol of numbering and mapping, we can convert the “flat” form to the Haworth projection: 4. Converting a Haworth to a Pyranose Chair Of course, we can also go in the opposite direction. The Haworth of α-D...