Organic Chemistry-Package(Custom)
4th Edition
ISBN: 9781259141089
Author: SMITH
Publisher: MCG
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Question
Chapter 30, Problem 30.16P
Interpretation Introduction
(a)
Interpretation: A skeletal structure of the anabolic steroid
Concept introduction: Steroids, a group of tetracyclic lipids composed of one five-membered ring and three six-membered rings. These rings are lettered by A, B, C, and D. Most of the steroids contain two angular methyl groups. These methyl groups are numbered as
Interpretation Introduction
(b)
Interpretation: The addition of all wedges and dashed wedges for all stereogenic centers to steroid
Concept introduction: Steroids, a group of tetracyclic lipids composed of one five-membered ring and three six-membered rings. These rings are lettered by A, B, C, and D. Most of the steroids contain two angular methyl groups. These methyl groups are numbered as
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Students have asked these similar questions
(a) Draw a skeletal structure of the anabolic steroid 4-androstene-3,17-dione, also called "andro,"
from the following description. Andro contains the tetracyclic steroid skeieton with carbonyl
groups at C3 and C17, a double bond between C4 and C5, and methyl groups bonded to C10
and C13. (b) Add wedges and dashes for all stereogenic centers with the following information:
the configuration at C10 is R, the configuration at C13 is S, and all substituents at ring fusions are
trans to each other.
Identify which of the statements is/are correct.
(i) The molecular formula of the smallest aldehyde is C3H6O, and that of the smallest ketone is also C3H6O.
(j) The molecular formula of the smallest carboxylic acid is C2H4O2.
Compounds with nearly identical molar masses often havevery different physical properties. Choose the compound withthe higher value for each of the following properties, and explainyour choice.(a) Solubility in water: chloroethane or methylethylamine(b) Melting point: diethyl ether or 1-butanol(c) Boiling point: trimethylamine or propylamine
Chapter 30 Solutions
Organic Chemistry-Package(Custom)
Ch. 30 - Problem 31.1
One component of jojoba oil is a wax...Ch. 30 - Prob. 30.2PCh. 30 - Problem 31.3
Draw the products formed when...Ch. 30 - Problem 31.4
The main fatty acid component of the...Ch. 30 - Prob. 30.5PCh. 30 - Problem 31.6
Draw the structure of a lecithin...Ch. 30 - Prob. 30.7PCh. 30 - Problem 31.8
Why are phospholipids, but not...Ch. 30 - Problem 31.9
Explain why regularly ingesting a...Ch. 30 - Prob. 30.10P
Ch. 30 - Problem 31.10
Locate the isoprene units in each...Ch. 30 - Prob. 30.12PCh. 30 - Problem 31.11
Locate the isoprene units in...Ch. 30 - Problem 31.12
Write a stepwise mechanism for the...Ch. 30 - Prob. 30.15PCh. 30 - Prob. 30.16PCh. 30 - Prob. 30.17PCh. 30 - Prob. 30.18PCh. 30 - 31.17 Locate the isoprene units in each...Ch. 30 - Prob. 30.20PCh. 30 - Prob. 30.21PCh. 30 - Prob. 30.22PCh. 30 - Prob. 30.23PCh. 30 - 31.22 What is the structure of an optically...Ch. 30 - Prob. 30.25PCh. 30 - 31.24 Draw the structure of the following...Ch. 30 - Prob. 30.27PCh. 30 - Locate the isoprene units in each compound. a. e....Ch. 30 - Classify each terpene and terpenoid in Problem...Ch. 30 - 31.29 An isoprene unit can be thought of as having...Ch. 30 - 31.30 Draw a stepwise mechanism for the conversion...Ch. 30 - Prob. 30.32PCh. 30 - Prob. 30.33PCh. 30 - Draw three-dimensional structures f or each...Ch. 30 - Prob. 30.35PCh. 30 - Prob. 30.36PCh. 30 - Prob. 30.37PCh. 30 - 31.38 Draw the products formed when cholesterol is...Ch. 30 - 31.39 Draw a stepwise mechanism for the following...Ch. 30 - 31.40 Draw a stepwise mechanism for the following...Ch. 30 - Prob. 30.41P
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- (4) Write the structure of the following compounds from their IUPAC names. (a) ethanamide (b) methylethanoate (c) propanoic acid (d) 2-butanone (5) Write the structure of the following ethers and amines from their common names (a) methyl propyl (b) trimethylamine (6) Decide whether the following alcohols are polar or nonpolar (a) CH3CH2CH2CH2CH2CH2CH2OH (b) CH3CH2OHarrow_forwardDraw structures corresponding to the following IUPAC names: (a) cis-1,2-Cyclohexanedicarboxylic acid (b) Heptanedioic acid (c) 2-Hexen-4-ynoic acidarrow_forwardFor the following, you must draw an appropriate structure that has the chemical formula C5H,NO with the indicated functional group(s) and/or property. In each case, identify any other functional groups in the molecule you draw, that were not indicated in the question. You may use condensed dash or bond-line structure to draw your molecules. a) An aldehyde b) A cyclic ether c) An acyclic amide that cannot form hydrogen bonds with itselfarrow_forward
- 1. The structure of compound A is shown below. OH NH2 (a) Redraw the above structure in the form of expanded and condensed structures. (b) Determine the number of primary, secondary, tertiary and quaternary carbon atom that can be found in the compound. (c) Redraw, circle and name the functional groups present in the compound. (d) State the possible type of stereoisomerism of the compound and draw the appropriate structures to describe the isomerism.arrow_forwardDraw the structural formulas for the following compounds. Include all the bonds to hydrogen atoms. Be sure to answer both parts. (a) 1,2,4-trimethylbenzene: (b) chlorobenzene:arrow_forwardThe structural formula for the open-chain form of galactose is CH Н—ҫ—ОН Но—С—н НО—С—Н Н—ҫ—ОН CH-ОН (a) Is this molecule a sugar? (b) How many chiral carbons are present in the molecule? (C) Draw the structure of the six-member-ring form of this molecule.arrow_forward
- The structural formula for the open-chain form of D-mannose is CH НО—С—Н Но-с—н Н—С—ОН Н—ҫ—ОН CH-OН (a) Is this molecule a sugar? (b) How many chiral carbons are present in the molecule? (c) Draw the structure of the six-member-ring form of this molecule.arrow_forwardFor the following, you must draw an appropriate structure that has the chemical formula C5H9NO with the indicated functional group(s) and/or property. In each case, identify any other functional groups in the molecule you draw, that were not indicated in the question. You may use condensed dash or bond-line structure to draw your molecules. c) An acyclic amide that cannot form hydrogen bonds with itselfarrow_forwardCompounds that contain an N-H group associate by hydrogen bonding. (a) Do you expect this association to be stronger or weaker than that of compounds containing an O-H group? (b) Based on your answer to part (a), which would you predict to have the higher boiling point, 1-butanol or 1-butanamine?arrow_forward
- what is the structure of hexane / ethyl acetate 1: 1?arrow_forwardDraw one possible structure for each of the following compounds based on the descriptions below. (i) A compound with molecular formula C6H11NO that includes alkene, secondary amine, and primary alcohol functional groups. (ii) A compound with molecular formula C6H9NO that has an amide functional group and does not have an alkene group.arrow_forwardIndicate whether each statement is true or false: (a) Fat molecules contain amide bonds. (b) Phosphoplipids can be zwitterions. (c) Phospholipids form bilayers in water in order to have their long hydrophobic tails interact favorably with each other, leaving their polar heads to the aqueous environment.arrow_forward
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