What is the stereochemistry of the alpha carbons on the polypeptide? The first one (on the N-terminal side) is S but what about the second one? I assigned first priority to the NH, but then I assigned second priority to the carbon double bonded to oxygen and single bonded to N. Does this not have higher priority than simply bonded to sulfur or?

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter4: Polar Bonds, Polar Reactions
Section: Chapter Questions
Problem 30CTQ: According to the conventions above, what is the sign ( + or ) of the P.E. change (H) for Rxn 3?
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What is the stereochemistry of the alpha carbons on the polypeptide? The first one (on the N-terminal side) is S but what about the second one? I assigned first priority to the NH, but then I assigned second priority to the carbon double bonded to oxygen and single bonded to N. Does this not have higher priority than simply bonded to sulfur or?

:öH
HC
'
H3 N - C
1.
-
:0:
e
:0:
C-
||
:0:
CH₂
:ZI
CH₂
-0111111
/
:0:
H2C H
|
:S:
:S:
|
C
=。
||
: 0:
C
CHz H
HC
||
대
CH
C
:ZH
H₂C
J
H
°C - N
HN:
C.III 4
- C
c=6.
CH ₂
1
||
:0:
Transcribed Image Text::öH HC ' H3 N - C 1. - :0: e :0: C- || :0: CH₂ :ZI CH₂ -0111111 / :0: H2C H | :S: :S: | C =。 || : 0: C CHz H HC || 대 CH C :ZH H₂C J H °C - N HN: C.III 4 - C c=6. CH ₂ 1 || :0:
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