ORGANIC CHEMISTRY
6th Edition
ISBN: 9781266633973
Author: SMITH
Publisher: MCG
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Chapter 27.3, Problem 10P
Interpretation Introduction
Interpretation: Among the given
Concept Introduction: Racemic mixture is a mixture of enantiomers in equal amounts. It is optically inactive. Racemic mixture can be resolved by the treatment of enantiomers with chiral reagent. Enantiomers have different chemical properties in chiral environment.
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Which of the following amines can be used to resolve a racemic mixture of amino acids?
ION
Glycine molecule shows a large conductivity when dissolved in water because;
A.
В.
Glycine dissociates directly and form
Glycine ionizes internally forming a
amino and carboxylate ions
dipole of two charge centers
D.
Glycine ionizes to form a positive ion by
Glycine ionizes to form a negative ion by
protonation of amino group
deprotonation of carboxylic group
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C.
What initiates a dehydration process between two amino acids, provided their carboxyl groups are exactly aligned with the amine groups of the other?
Chapter 27 Solutions
ORGANIC CHEMISTRY
Ch. 27.1 - Prob. 1PCh. 27.1 - Problem 29.2
What form exists at the isoelectric...Ch. 27.1 - Problem 29.3
Explain why the of the group of an...Ch. 27.1 - Prob. 4PCh. 27.2 - Problem 29.5
What -halo carbonyl compound is...Ch. 27.2 - Problem 29.6
The enolate derived from diethyl...Ch. 27.2 - Problem 29.7
What amino acid is formed when is...Ch. 27.2 - Problem 29.8
What aldehyde is needed to synthesize...Ch. 27.2 - Problem 29.9
Draw the products of each...Ch. 27.3 - Prob. 10P
Ch. 27.3 - Prob. 11PCh. 27.3 - Prob. 12PCh. 27.4 - Problem 29.13
What alkene is needed to synthesize...Ch. 27.5 - Problem 29.14
Draw the structure of each peptide....Ch. 27.5 - Problem 29.15
Name each peptide using both the...Ch. 27 - Draw the product formed when the following amino...Ch. 27 - With reference to the following peptide: a...Ch. 27 - Prob. 31PCh. 27 - Histidine is classified as a basic amino acid...Ch. 27 - Tryptophan is not classified as a basic amino acid...Ch. 27 - What is the structure of each amino acid at its...Ch. 27 - What is the predominant form of each of the...Ch. 27 - 29.37 What is the predominant form of each of the...Ch. 27 - a. Draw the structure of the tripeptide A–A–A, and...Ch. 27 - 29.39 Draw the organic products formed in each...Ch. 27 - 29.40 What alkyl halide is needed to synthesize...Ch. 27 - Prob. 50PCh. 27 - Draw the structure for each peptide: (a) Phe–Ala;...Ch. 27 - 29.52 For the tetrapeptide Asp–Arg–Val–Tyr:
a....Ch. 27 - Prob. 53PCh. 27 - Prob. 54PCh. 27 - 29.55 Draw the amino acids and peptide fragments...Ch. 27 - Prob. 56PCh. 27 - Prob. 57PCh. 27 - Prob. 58PCh. 27 - 29.59 An octapeptide contains the following amino...Ch. 27 - 29.60 Draw the organic products formed in each...Ch. 27 - 29.65 Draw the mechanism for the reaction that...Ch. 27 - 29.66 Which of the following amino acids are...Ch. 27 - 29.67 After the peptide chain of collagen has been...Ch. 27 - Prob. 68PCh. 27 - Prob. 69PCh. 27 - 29.70 The anti-obesity drug orlistat works by...Ch. 27 - Prob. 71P
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- What special role does the amino acid cysteine have in the peptides vasopressin and oxytocin?arrow_forwardWhich of the following are true concerning the chemical bond that forms between the carboxyl (RCOOH) group of one amino acid and the amino (RCNH2) group of another? a.The bond is called a peptide bond. b.It is formed by inserting a water molecule between them. c.It is formed by a dehydration reaction. d.A polypeptide has more of these bonds than a protein.arrow_forwardGive each of the following amines an IUPAC name. a. b. c.arrow_forward
- name the following amines as primary, secondary,tertiary or quaternaryarrow_forwardexplain the solubility behavior of each representatives amine in water a. aniline b. diethylamine c. N,N-diethylanilinearrow_forwardClassify amines as aliphatic or aromatic amines (by writing the aromaticity rule).arrow_forward
- The hydrolysis of an amide in acidic conditions forms A. a carboxylate salt and an alcohol B. a carboxylate salt and an amine C. an alcohol and an amine salt (an ammonium ion) D. a carboxylic acid and an amine salt (an ammonium ion)arrow_forwardIs it possible for primary and secondary amines to act as very weak acids? Explain.arrow_forwardpeptides 1 A peptide bond is classified as a(n) bond. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a. amine b. phosphate amide P. ester Unansweredarrow_forward
- A. 2,4-dihydroxybenzaldehyde reacts with ethylamine to form an imine. B. 2,4-dihydroxybenzaldehyde reacts with ethanamide to form an ester. Are the statements True?arrow_forward5.) Name the following amines (a. and b.) and draw the structural formula(c.). c.) Cyclopentanamine a.) b.) NH2 NH 2 Нзс— сн — сH 2— сн 3arrow_forwardWhy are tertiary amines not soluble in water? O a. Primary amine cannot hydrogen bond with water. O b. Amines are non polar compounds. O c. Tertiary amine cannot hydrogen bond with water O d. Secondary amine cannot hydrogen bond with water. Clear my choicearrow_forward
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