Cyclic Structure for Glucose Glucose cyclic hemiacetal formed by reaction of -CHO with -OH on C5. CHO H 一OH HO- -H CH,OH H CHOH 4 H OH H -OH CH-OH O H+ OH H OH H OH H +H+ H OH HO HO HO 2 CH2OH H OH OH OH Fischer projection on right side C6 rotated up Haworth projection H 6 H 6 CHOH CH,OH 5 HO 5■ HO OH 2 -H 3 OH T OH 分 H OH => chair conformation(all substituents equatorial) chair conformation(OH on CI axial) Chapter 23 D-glucopyranose 9 Chapter 23 9 Cyclic Structure for Glucose Glucose cyclic hemiacetal formed by reaction of -CHO with -OH on C5. => D-glucopyranose