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(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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Chapter 29 Solutions
EBK ORGANIC CHEMISTRY
- (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_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
- 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_forwardIn each pair of compounds, which compound has a higher boiling point? Explain your reasoning. (a) 2,2,5-trimethylhexane or nonanearrow_forwardwhat is the structure of hexane / ethyl acetate 1: 1?arrow_forward
- Indicate 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_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(a) Locate the isoprene units in lycopene, the red pigment in tomatoes. (b) Which isoprene units are connected in a head-to-tail fashion? (c) Label any other isoprene unit as connected in a head-tohead fashion or a tail-to-tail fashion. (d) Classify lycopene as a monoterpene, sesquiterpene, and so on.arrow_forward
- Identify and classify the functional group in each of the following molecules. (a) CH,CH CCH alkane (b) H3C C-0-CH ester (c) CH,CH2NH2 alkyne (d) H;C CH2 CH, ketone (e) CH,CH OCH,CH, ester OH (f) H,C -CH CH, ester (g) CH,CO,H carboxylic acid v (h) CH,CH,CH=CH2 alcohol (i) H,C alkynearrow_forwardDraw structural formulas for the following the compounds: (a) Cis-1,3-diphenylcyclohexane (b) 5-phenylpentanoic acid (c) 3,4-dibromo-N,N-dimethylanilinearrow_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
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