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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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
Transcribed Image Text:D-glucose exists as two epimeric cyclic hemiacetals: a-D-glucopyranose (left, labeled
hydroxy group is in the axial position) and B-D-glucopyranose (right, the labeled hydroxy
group is in equatorial position). The two anomers equilibrate via the open aldehyde form.
Draw the curved arrows to show the complete reaction mechanism for the conversion of
one anomer to the other under acidic catalysis.
HOH
HOH
Ho
HO
HO
HO
HO-
H
H
HO-
OH!--
H
H
OH
H
OHI
H
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