Essential Organic Chemistry, Global Edition
3rd Edition
ISBN: 9781292089034
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 50P
Show how valine can be prepared by
a. a Strecker synthesis. b. a reductive
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Chapter 17 Solutions
Essential Organic Chemistry, Global Edition
Ch. 17.1 - a. Explain why, when the imidazole ring of...Ch. 17.2 - Prob. 2PCh. 17.3 - Prob. 3PCh. 17.3 - Prob. 4PCh. 17.3 - Prob. 6PCh. 17.4 - Calculate the pI of each of the following amino...Ch. 17.4 - a. Which amino acid has the lowest pI value? b....Ch. 17.5 - What aldehyde is formed when valine is treated...Ch. 17.5 - Prob. 10PCh. 17.5 - Prob. 11P
Ch. 17.5 - Prob. 12PCh. 17.6 - Prob. 13PCh. 17.6 - What amino acid would be formed using the...Ch. 17.6 - What amino acid would be formed when the aldehyde...Ch. 17.7 - Pig liver esterase is an enzyme that catalyzes the...Ch. 17.8 - Prob. 17PCh. 17.8 - Prob. 18PCh. 17.8 - Prob. 19PCh. 17.8 - Prob. 20PCh. 17.10 - Prob. 21PCh. 17.10 - Prob. 22PCh. 17.10 - Why does cyanogen bromide not cleave on the C-side...Ch. 17.10 - Prob. 24PCh. 17.10 - Prob. 26PCh. 17.12 - Prob. 27PCh. 17.13 - a. Which would have the greatest percentage of...Ch. 17 - Draw the predominant form of the following amino...Ch. 17 - What is the pI of serine?Ch. 17 - Prob. 31PCh. 17 - Prob. 32PCh. 17 - Which would have a higher percentage of negative...Ch. 17 - Draw the form of aspartate that predominates at...Ch. 17 - Prob. 35PCh. 17 - A professor was preparing a manuscript for...Ch. 17 - a. Why is the pKa of the glutamate side chain...Ch. 17 - Prob. 38PCh. 17 - Determine the amino acid sequence of a polypeptide...Ch. 17 - Prob. 40PCh. 17 - Prob. 41PCh. 17 - Three peptides were obtained from a trypsin...Ch. 17 - Prob. 43PCh. 17 - After the polypeptide shown here was treated with...Ch. 17 - The disulfide bridges of a polypeptide were...Ch. 17 - -Amino acids can be prepared by treating an...Ch. 17 - Reaction of a polypeptide with carboxypeptidase A...Ch. 17 - Prob. 48PCh. 17 - Prob. 49PCh. 17 - Show how valine can be prepared by a. a Strecker...Ch. 17 - Prob. 51PCh. 17 - Why is proline never found in an -helix?Ch. 17 - Determine the amino acid sequence of a polypeptide...Ch. 17 - Prob. 55PCh. 17 - A chemist wanted to test his hypothesis that the...Ch. 17 - A normal polypeptide and a mutant of the...
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- When two amino acids react to form a peptide bond, one forms: A.) amide by an electrophilic acylic substitution B.) amide by nucleophilic acylic substitution C.) lactam by nucleophilic acylic substitution D.) lactam by an electrophilic acyl substitutionarrow_forwardWhat products are formed by hydrolysis of each lactone or lactam with acid?arrow_forwardCeramide can then be used to synthesize sphingomyelin, another important molecule that is prevalent in cell membranes. 1.How does the structure of sphingomyelin differ from that of ceramide? 2.Sphingomyelin is also found in the cell membrane. Explain how you would expect to find the orientation of this molecule in the cell membrane. 3.Which amino alcohol is used in the synthesis of sphingomyelin? 4.What is particular about the amino alcohol used in in the synthesis of sphingomyelin? 5.How does your answer to #16 affect the physical properties of properties of sphingomyelin?arrow_forward
- 1. What test reagents are used for the alkylation of amino acids (alkylating reagents)? 2. What test reagents are used for acid hydrolyzation of amino acidsarrow_forwardshow the esterification reaction between a. ethanoic acid and butanol b. propanoic acid and pentanolarrow_forwardComplete the following reactions: a. b.arrow_forward
- fid the molecular structure of 1. deprotonated form of 2-amino-3hydroxypropanoic acid 2.zwitterionic form of 2-Amino-3-methylpentanoic acid 3. protonated form of 2-Amino-3-methylpentanoic acid 4. deprotonated form of 2,5 diamino5-oxopentanoic acid 5. zwitterionic form of 2-amino-3hydroxypropanoic acid 6.2-phenyl propanol 7. 2,4,6-trinitrophenol 8. oxoheptanoic acid 9. (4E)-2,6-dimethylhepta2,4-dien3ol 10. 3-methylbutan1-olarrow_forwardConsider the following triacylglycerol A: (i) (ii) Indicate and name two functional groups present in A. Draw the products obtained from the acidic hydrolysis of A. B Predict the product of the following reaction: H cat. Онarrow_forwardH. H. N. O. OH H. 1(f) Describe the preparation of soap from triacylglycerides. Use a reaction scheme to help you.arrow_forward
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