(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 (LOOSELEAF)
- (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_forwardIn each pair of compounds, which compound has a higher boiling point? Explain your reasoning. (a) 2,2,5-trimethylhexane or nonanearrow_forwardThe 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_forward
- (b) Draw the structural formula for each of the following compounds. Lukiskan formula struktur bagi setiap sebatian berikut. (i) 2-iodo-4-methylpentan-3-amine (ii) 1,1-dibromo-2-chloro-2-methylbutane (iii) 2-ethyl-6-fluorophenolarrow_forwardwhat 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_forward
- The fact that sweet-tasting carbohydrates like table sugar are also high in calories has prompted the development of sweet, low-calorie alternatives. (a) Identify the functional groups in aspartame, the artificial sweetener in Equal. (b) Label all of the sites that can hydrogen bond to the oxygen atom of water. (c) Label all of the sites that can hydrogen bond to a hydrogen atom of water.arrow_forwardClassify each attached pair of compounds as stereoisomers or conformations: (a) X and Y; (b) X and Z.arrow_forward(a) A phenyl group has the molecular formula CH- and is represented by the symbol Bn. True False (b) Para substituents occupy adjacent carbons on a benzene ring. (c) True False (e) 3-Bromobenzoic acid can be separated into cis and trans isomers. True O False (d) 1-Phenylcyclohexene is a planar molecule. True False Benzene, naphthalene, and phenanthrene are polynuclear aromatic hydrocarbons (PAHs). Truearrow_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