8. Draw 3 of the following compounds: a. Tribromomethane b. 2,2-dicyclopropyl-3,3-dimethylbutane c. Di-(2,3-hydroxymethyl)-1,4-decandiol d. cis-2-propoxy-1-cyclodecanol 9....
3. Write a bond-line formula for each of the following compounds: (a) 1,4-Dichloropentane (b) sec-Butyl bromide (c) 4-Isopropylheptane (d) 22.3-Trimethylpentane (e) 3-Ethyl-2-methylhexane 6. Give systematic IUPAC names for each of the following: (b) X OH (c) 7. Sketch curves similar to the one given in Figure 3.9 showing the energy changes that arise from rotation about the C2-C3 bond of the two compounds below. You need not concern yourself with actual numeri values of the energy changes, but you should...
I . Write a bond-line formula for each of the following compounds: 1,4-Dichloropentane sec-Butyl bromide 4-Ethyl-3,3-dimethylhexane 2,2,3-Trimethylpentane 3-Ethyl-2-methylhexane Bicyclo[4.4.0]decane 2,2-Dicyclobutyl-5-ethyloctane Bicyclo[2.2.1]heptane 4-Isopropyl-5-methyloctane cis-1-sec-Butyl-2-methylcyclopentane 3,7-Diethyl-2,2-dimethyl-4-isopropylnonane 4-Ethyl-4-fluoro-2-methylheptane 1,1-Dichlorocyclopentane cis-1,2-Dimethylcyclopropane trans-1,2-Dimethylcyclopropane II. Give systematic IUPAC names for each of the following: а. ОН b. С. Br d. e. Br f. Br Br CI h. а. ОН b. С. Br d. e. Br f. Br Br CI h.
OCH3 3. Indicate the electrophilic or nucleophilic centers for the following compounds: a) b) d) 4. Answer the following questions regarding 2,3-dimethylbutane: a) draw any staggered Newman projection of this compound looking down the C2-C3 bond. b) draw the highest energy conformation (as a Newman projection). Label each example of steric and/or torsional strain. c) draw the lowest energy conformation. Identify any sources of steric or torsional strain if present. m md iminetahm 5 Draw tra possiblechair conformatex For Jbrom-s-7ethiTmethychayo...
b. Which of the following alkanes has the highest bolling point? 2,3-dimethylbutane: 2-methylpentane; 3-methylpentane; hexane c. Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups? 1,1-dimethylcyclohexane; cis-1,2-dimethylcyclohexane; trans-1,2-dimethylcyclohexane; trans-1,3-di methylcyclohexane d. Which of the following compounds can adopt a chair conformation which there are no axial methyl groups? cis-1,2-dimethylcyclohexane; cis-1,3-dimethylcyclohexane; trans-1,3-dimethylcyclohexane; cis-1.4-dimethylcyclohexane cis-1,2-dimethvcyclohexane (Enter the numerical value only, without any units)? e. What is the approximate di hedral angle between the...
9. Which of the following is not an isomer of hexane? 1. 2,2-dimethylbutane 2. 2,2-dimethylpentane 3. 3-methylpentane 4. 2-methylpentane 5. 2,3-dimethylbutane 10. Ascorbic acid (vitamin C) is not a carboxylic acid, but rather has the structure shown below. How many stereoisomers of this compound are possible? НО. 0 ascorbic acid HO но OH a. 1 b. 3 c. 4 d. 6 II. Short Answer Questions. (70 pt total) 1. a. Identify the functional groups in the following molecule as circled....
1. a. (4 points) Draw the dash-wedge structure of (2R,3.5)-2,3-dichloropentane. b. (4 points) Draw the Fischer projection of enantionmer of the compound drawn in part a. Name the enantiomers c. (6 points) Draw the Newman projections (looking down the C2-C3 bonds) of the diastereomers of the compound drawn in part b. Name the diastercomers 2. (6 points) Draw the mechanisms of the propagation steps of the reaction shown, focusing on the formation of the major product(s). NBS
26. Which of the following compounds is the most stable? a. penta-2,3-diene b. 2,4-hexadiene c. 1,4-pentadiene d. 3,6-octadiene
2. Draw the flowing substances. a. bond-line with dash-wedges to indicate appropriate stereochemistry: (IR,4R)-1,4-dibromo-1-chloro-1-fluoropentane b. Fisher projection formula: (3R)-6-bromo-1-hexen-3-ol 3. Write the IUPAC name of the following compounds including stereochemical details. a. OH CH, b. HO -Br Hас" H
1.) Which of the following compounds is chiral? A. 1-chloropentane B. 1,1-dichloropentane C. 2-chloropentane D. 2,2-dichloropentane E. none of these 2.) Compounds I and III are: A. enantiomers B. diastereomers C. structural isomers D. geometric isomers 3.) The molecules shown are: A. constitutional isomers B. enantiomers C. diastereomers D. identical E. none of these We were unable to transcribe this imageH3C
2. Draw the flowing substances. a. bond-line with dash-wedges to indicate appropriate stereochemistry (1R 4R)-1,4-dibromo-1-chloro-1-fluoropentane b. Fisher projection formula: (3R)-6-bromo-1-hexen-3-ol 3. Write the IUPAC name of the following compounds including stereochemical details. QUA CH3 b. HODC- H₃C