ORGANIC CHEMISTRY
6th Edition
ISBN: 9781266633973
Author: SMITH
Publisher: MCG
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Chapter 27, Problem 39P
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Determine which of the following bases is strong enough to deprotonate acetonitrile (CH3CN), so that equilibrium favors the products:(a) NaH; (b) Na2CO3; (c) NaOH; (d) NaNH2; (e) NaHCO3.
Draw the structure of each peptide. Label the N-terminal and C-terminal amino acids and all amide bonds.
a. Val–Glu
b. Gly–His–Leu
c. M–A–T–T
The structure among the following that represents an amide (peptide) bond is:
N H
N-H
-C-O-
-C-O-H
A
B
он
C-0-
-C-N-
D
structure A
structure D
structure B
structure C
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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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- 22-42 (a) How many atoms of the peptide bond lie in the same plane? (b) Which atoms are they?arrow_forwardFor the tripeptide GlyAlaCys a. What amino acid is located at the peptides N-terminal end? b. What amino acid is located at the peptides C-terminal end? c. How many peptide bonds are present? d. How many amide linkages are present?arrow_forward16*32 Many tumors of the breast are correlated with estrogen levels in the body. Drugs that interfere with estrogen binding have antitumor activity and may even help prevent tumor occurrence. A widely used antiestrogen drug is tamoxifen. kJ1 Name the functional groups in tamoxifen. Classify the amino group in tamoxifen as primary, secondary, or tertiary. How many stereoisomers are possible for tamoxifen? (d, Would you expect tamoxifen to be soluble or insoluble in water? In blood?arrow_forward
- 22-44 How can a protein act as a buffer?arrow_forwardwrite the IUPAC names for the following aminos CH,CH, CH;CH,NH2 b) CH;CH, c) CH 9. Escriha la aetunt -.arrow_forward(a) What is the difference between the hormones progesterone and testosterone? (b) Draw the structure of a a steroid nucleus. (c) Give the products obtained from complete base hydrolysis in the following reaction: O || CH,−O−C−(CH2)14–CH3 O CH–0–C−(CH2)14—CH3 + 3 NaOH O CH,−0–C−(CH2)14–CH3arrow_forward
- Classify this amino acid. Select one: none of the choices shown basic nonpolar polar acidicarrow_forward5. Draw the all of the products formed when the following amino acids form a peptide bond through an Amidification reaction. NH, CH2 CH2 CH2 ČH2 CH2 H3N-C-COOH H2N-C-CO0 H. Harrow_forward4 101 1. When an amino acid has a negative charge coming from the carboxylic acid or a positive charge coming from the amine controlled by pH, this is known as an isoelectric point: $ True false Accessibility: Good to go 2. When an amino acid has a negative charge coming from the carboxylic acid or a positive charge coming from the amine controlled by pH, this is known as an isoelectric point:] True false 8: f5 f6 A f7 (40) & W hp f8 2 [7] f9 8 f10 [9] f11 7 84°F Mostl f12arrow_forward
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