(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
(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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ORGANIC CHEMISTRY
- 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 propylaminearrow_forward(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_forward
- For 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_forward1. 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_forward
- (1) Draw the LINE-ANGLE structure of 2, 2-diiodopentane. (2) Convert this achiral compound to one chiral compound by simply changing the position of 2 atoms (or groups) in the structure.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_forwardIn each pair of compounds, which compound has a higher boiling point? Explain your reasoning. (a) 2,2,5-trimethylhexane or nonanearrow_forward
- The melting points and boiling points of two isomeric alkanes are as follows: CH3(CH2)6CH3, mp = -57 °C and bp = 126 °C; (CH3)3CC(CH3)3, mp = 102 °C and bp = 106 °C. (a) Explain why one isomer has a lower melting point but higher boiling point. (b) Explain why there is a small difference in the boiling points of the two compounds, but a huge difference in their melting points.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_forwardDraw the structures for the following compounds.(a) 3-benzyl-4-bromohexane , 4,4-dimethylcyclohexene(b) trans-4,5-dibromohex-2-ene , cis-1,1-dibromo-2-ethyl-2,3-dimethylcyclobutanearrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning