ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT
12th Edition
ISBN: 9781119664635
Author: Solomons
Publisher: WILEY
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Question
Chapter 24, Problem 15PP
Interpretation Introduction
Interpretation:
The explanation of structural features of a linker, which make it possible for the polypeptide to be detached from the Wang resin using trifluoroacetic acid, is to be given.
Concept introduction:
In solid-phase peptide synthesis (SPPS), peptides are prepared, residue by residue. The peptide is attached to
The polypeptide is finally cleaved from the polymer support and is purified by HPLC (high-performance liquid chromatography). The Wang resin is used as polymer support for the batch synthesis of peptide acids following the Fmoc- or tert-Bu-protection. It is cleaved by TFA.
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a. Determine whether each of the Followery
Molecules
is in
the R- On the y-
Configuration
1-01"/
1-6-4
Br
4
I
el
Br
b. Draw The Fisher projection For all the
Meso compounds that can
exist FOR
The Following molenle
1- Refer to the monosaccharides below to answer each of the following question(s):
CH₂OH
CHO
CH₂OH
CH₂OH
0
H-
OH
0
0
HO-
H
H-
-OH
HO
H
HO H
H OH
HO- H
CH₂OH
H.
OH
HO
H
HO-
H
CH₂OH
CH₂OH
CH3
a. Sorbose
b. Rhamnose
c. Erythrulose
d. Xylulose
Classify each sugar by type; for example, glucose is an aldohexose.
a. Xylulose is ..
b. Erythrulose is .
c. Sorbose is ..
d. Rhamnose is ..
2- Consider the reaction below to answer the following question(s).
CHO
H
OH
CH₂OH
CH₂OH
HO-
H
HO
HO
+
H.
-OH
HO
OH
HO.
H
OH
OH
H
-OH
H
OH
CH₂OH
Q
Z
a.
Refer to Exhibit 25-11. Place a triangle around the anomeric carbon in compound Q.
Compound Z is:
b.
1. the D-anomer.
2. the a-anomer.
3. the ẞ-anomer.
4. the L-anomer.
c. Which anomer is the LEAST stable?
d. Q and Z are cyclic examples of:
a. acetals
b.
hemiacetals
c. alditols
d.
hemialditols
Chapter 24 Solutions
ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT
Ch. 24 - Prob. 1PPCh. 24 - Practice Problem 24.2 The guanidino group NHNHCNH2...Ch. 24 - Prob. 3PPCh. 24 - Prob. 4PPCh. 24 - Prob. 5PPCh. 24 - Prob. 6PPCh. 24 - Prob. 7PPCh. 24 - Practice Problem 24.8
Glutathione is a tripeptide...Ch. 24 - Prob. 9PPCh. 24 - Prob. 10PP
Ch. 24 - Prob. 11PPCh. 24 - Practice Problem 24.12 Show all steps in the...Ch. 24 - Practice Problem 24.13 The synthesis of a...Ch. 24 - Practice Problem 24.14
The terminal carboxyl...Ch. 24 - Prob. 15PPCh. 24 - Prob. 16PPCh. 24 - (a) Which amino acids in Table 24.1 have more than...Ch. 24 - Prob. 18PCh. 24 - 24.19 (a) On the basis of the following sequence...Ch. 24 - Prob. 20PCh. 24 - Prob. 21PCh. 24 - Prob. 22PCh. 24 - Prob. 23PCh. 24 - Prob. 24PCh. 24 - The enzyme lysozyme and its mechanism are...Ch. 24 - Prob. 2LGP
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