Fischer Projections (Worksheet Solutions Walkthrough)

In this solution walkthrough, we go through the Fischer Projections worksheet on jOeCHEM (worksheet and solution sheet linked below).
Worksheet: worksheets.joechem.io/workshee...
Worksheet Solution: worksheets.joechem.io/workshee...
Worksheet Solution Walkthrough video: joechem.io/videos/wksht-soln-...
Study Guide: worksheets.joechem.io/study-gu...
Related instructional videos on jOeCHEM:
How to Handle Fischer Projections - joechem.io/videos/20
Assigning R & S--Conventionally and with the Double Switch - joechem.io/videos/18
Stereochemical Relationships and Meso Structures - joechem.io/videos/19
Chiral Structures and Optical Activity--Putting It All Together - joechem.io/videos/105
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[@sunnywoody4176]

Isn’t hydrogen suppose be dashed not wedged ? Why didn’t you rotate the molecule ?

[@blumberjack1]

Fantastic from iran😅❤

[@saraahmadi2885]

same here !

[@EmmaPascasioEspejo]

Hi! I have a question of the last exercise (the one that starts in the 32th minute). Why do you put the first C in the Fischer projection the one that is bonded to the NH2 instead of the one bonded to the F and OH? Thank you so much.

[@jOeCHEM]

Hi @user-ge7er4do4i ! First off, thank you for watching and being a jOeCHEMist! So it doesn't matter either way! You could totally have the C (the one i marked with a darkened circle) at the "top" of the Fischer Projection; however, it will affect the way you look at the bond-line structure (aka how you draw the blue eyes that illustrate the visual perspective necessary to convert correctly to the Fischer Projection form). I chose the way I did because I typically stand on the left side of my whiteboard, so it was easier to draw two pairs of "eyes" that aligned with the way I stand at my whiteboard. If we wanted to instead start with the C (the one i marked with a darkened circle) at the "top" of the Fischer Projection, I would have to adjust all of the pairs of "eyes" to be on the other side of the carbons they're currently looking at to preserve the convention of Fischer Projections having things facing away/toward as well as making sure groups are properly up/down. Let me know if that made sense or not.

[@user-qc5pt1we7u]

hi:)) thanks that was super helpful! I have a quick question - what would be the procedure for correctly assigning D or L?

[@jOeCHEM]

Hi there! Check out this video on my channel where I go over that :) : kzbin.info/www/bejne/mJmkepaAedJoh8U