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Concept explainers
a.
To draw:
The structure of alanine and mark an asterisk (*) next to any chiral carbon centers.
Introduction:
Amino acids contain a protonated
a.
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Explanation of Solution
Alanine is a non essential amino acid. The three letter abbreviation of alanine is “Ala” and the one letter code is “A”. The side chain of alanine contains hydrocarbon as functional group.
Pictorial representation:
The structure of amino acid Alanine.
Fig 1: The structure of amino acid Alanine (Ala, A).
b.
To determine:
The structure of lysine and mark an asterisk (*) next to any chiral carbon centers
Introduction:
Amino acids contain a protonated amine and a carboxylic acid in the form of carboxylate ion. These two functional groups are bonded to a central carbon atom called the alpha-carbon. The protonated amine bonded to this carbon is called alpha-amino group and the carboxylate ion as the alpha carboxylate group. The alpha-carbon is also bonded to a hydrogen atom and a large side chain designated as R, which gives unique identification and characteristics to each amino acids.
b.
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Explanation of Solution
Lysine is an essential amino acid. The three letter abbreviation of lysine is “Lys” and the one letter code is “K”. The side chain of lysine contains protonated amine as functional group.
Pictorial representation: The structure of amino acid Lysine.
Fig 2: The structure of amino acid Lysine (Lys, K).
c.
To determine:
The structure of tryptophan and mark an asterisk (*) next to any chiral carbon centers
Introduction:
Amino acids contain a protonated amine and a carboxylic acid in the form of carboxylate ion. These two functional groups are bonded to a central carbon atom called the alpha-carbon. The protonated amine bonded to this carbon is called alpha-amino group and the carboxylate ion as the alpha carboxylate group. The alpha-carbon is also bonded to a hydrogen atom and a large side chain designated as R, which gives unique identification and characteristics to each amino acids.
c.
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Explanation of Solution
Tryptophan is an essential amino acid. The three letter abbreviation of tryptophan is “Trp” and the one letter code is “W”. The side chain of tryptophan contains
Pictorial representation:
The structure of amino acid Tryptophan.
Fig 3: The structure of amino acid Tryptophan (Trp, W).
d.
To determine:
The structure of aspartate and mark an asterisk (*) next to any chiral carbon centers
Introduction:
Amino acids contain a protonated amine and a carboxylic acid in the form of carboxylate ion. These two functional groups are bonded to a central carbon atom called the alpha-carbon. The protonated amine bonded to this carbon is called alpha-amino group and the carboxylate ion as the alpha carboxylate group. The alpha-carbon is also bonded to a hydrogen atom and a large side chain designated as R, which gives unique identification and characteristics to each amino acids.
d.
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Explanation of Solution
Aspartate is a non essential amino acid. The three letter abbreviation of aspartate is “Asp” and the one letter code is “D”. The side chain of aspartate contains carboxylate as functional group.
Pictorial representation:
The structure of amino acid Aspartate.
Fig 4: The structure of amino acid Aspartate (Asp, D)
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Chapter 10 Solutions
EBK LABORATORY MANUAL FOR GENERAL, ORGA
- What would be the best choices for the missing reagents 1 and 3 in this synthesis? 1. PPh3 3 2. n-BuLi • Draw the missing reagents in the drawing area below. You can draw them in any arrangement you like. • Do not draw the missing reagent 2. If you draw 1 correctly, we'll know what it is. • Note: if one of your reagents needs to contain a halogen, use bromine. Click and drag to start drawing a structure.arrow_forwardIdentify the missing organic reactants in the following reaction: X + Y H+ two steps Note: This chemical equation only focuses on the important organic molecules in the reaction. Additional inorganic or small-molecule reactants or products (like H2O) are not shown. In the drawing area below, draw the skeletal ("line") structures of the missing organic reactants X and Y. You may draw the structures in any arrangement that you like, so long as they aren't touching. Click and drag to start drawing a structure. Х :arrow_forwardDraw the mechanism of friedel-crafts acylation using acetyl chloride of m-Xylenearrow_forward
- Don't used hand raiting and don't used Ai solution and correct answerarrow_forwardH R Part: 1/2 :CI: is a/an electrophile Part 2 of 2 Draw the skeletal structure of the product(s) for the Lewis acid-base reaction. Include lone pairs and formal charges (if applicable) on the structures. 4-7: H ö- H Skip Part Check X :C1: $ % L Fi Click and drag to start drawing a structure. MacBook Pro & ㅁ x G 0: P Add or increase positive formal cha Save For Later Submit ©2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centearrow_forwardDraw the friedel-crafts acylation mechanism of m-Xylenearrow_forward
- Don't used hand raiting and don't used Ai solutionarrow_forward1. Base on this experimental results, how do you know that the product which you are turning in is methyl 3-nitrobenzoate(meta substituted product ) rather than either of the other two products? 2. What observation suggests that at least a small amount of one or both of the other two isomers are in the mother liquor?arrow_forwardExplain Huckel's rule.arrow_forward
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