Whether cytosine is a nucleotide , nucleoside or neither a nucleotide nor a nucleoside has to be predicted. Concept introduction: A nucleotide consists of a pentose sugar, a nitrogen-containing base, and a phosphate group while a nucleoside consists of a nitrogen-containing base and a pentose sugar.
Whether cytosine is a nucleotide , nucleoside or neither a nucleotide nor a nucleoside has to be predicted. Concept introduction: A nucleotide consists of a pentose sugar, a nitrogen-containing base, and a phosphate group while a nucleoside consists of a nitrogen-containing base and a pentose sugar.
Solution Summary: The author explains that cytosine is a nucleotide, while cytidine is not.
Definition Definition A complex molecule that makes up a fundamental unit of a DNA or RNA molecule. Nucleotides are composed of a sugar, a nitrogenous base, and a phosphoric acid.
Chapter 11, Problem 11.30EP
(a)
Interpretation Introduction
Interpretation: Whether cytosine is a nucleotide, nucleoside or neither a nucleotide nor a nucleoside has to be predicted.
Concept introduction: A nucleotide consists of a pentose sugar, a nitrogen-containing base, and a phosphate group while a nucleoside consists of a nitrogen-containing base and a pentose sugar.
(b)
Interpretation Introduction
Interpretation: Whether cytidine is a nucleotide, nucleoside or neither a nucleotide nor a nucleoside has to be predicted.
Concept introduction: A nucleotide consists of a pentose sugar, a nitrogen-containing base, and a phosphate group while a nucleoside consists of a nitrogen-containing base and a pentose sugar.
(c)
Interpretation Introduction
Interpretation: Whether CMP is a nucleotide, nucleoside or neither a nucleotide nor a nucleoside has to be predicted.
Concept introduction: A nucleotide consists of a pentose sugar, a nitrogen-containing base, and a phosphate group while a nucleoside consists of a nitrogen-containing base and a pentose sugar.
(d)
Interpretation Introduction
Interpretation: Whether deoxycytidine 5’-monophosphate is a nucleotide, nucleoside or neither a nucleotide nor a nucleoside has to be predicted.
Concept introduction: A nucleotide consists of a pentose sugar, a nitrogen-containing base, and a phosphate group while a nucleoside consists of a nitrogen-containing base and a pentose sugar.
Protecting Groups and Carbonyls
6) The synthesis generates allethrolone that exhibits high insect toxicity but low mammalian toxicity. They are used in pet
shampoo, human lice shampoo, and industrial sprays for insects and mosquitos. Propose detailed mechanistic steps to
generate the allethrolone label the different types of reagents (Grignard, acid/base protonation, acid/base deprotonation,
reduction, oxidation, witting, aldol condensation, Robinson annulation, etc.)
III + VI
HS
HS
H+
CH,CH,Li
III
I
II
IV
CI + P(Ph)3
V
༼
Hint: no strong base added
VI
S
VII
IX
HO
VIII
-MgBr
HgCl2,HgO
HO.
isomerization
aqeuous solution
H,SO,
༽༽༤༽༽
X
MeOH
Hint: enhances selectivity for reaction at the S
X
☑
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