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D-glucose versus L-glucose

  • Thread starter lha08
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  • #1
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Homework Statement


I'm a little confused as to the difference between both glucoses...when we draw the Fisher projections for both D and L glucoses, the hydrogens and hydroxyls will alternate in opposite directions, but does that mean when we draw the Haworth representation, are the H and OH drawn oppositely to each other as well? For example, lets say on Carbon 4, the H is pointing up and OH down for D glucose, will the H point down and OH up for L glucose?


Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
chemisttree
Science Advisor
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Yep. If you take a Haworth model and lay it down with the most oxidized carbon at the top (the aldehyde carbon) you get a Fisher projection. You gotta break a bond to do this of course.
 

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