Practiceproblems5 - H I H CH 3 H H 5. Draw structural...

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51A Practice Problems 5 Fall, 2010 1. Write the correct IUPAC name for the following compound. Label any primary, secondary, tertiary, or quaternary carbons, and primary, secondary or tertiary H’s. CH 3 C CH 3 CH 3 CH CH 2 CH 3 CH 3 2. Draw the following conformers of hexane, considering rotation about the C3—C4 bond: a. the most stable of all the conformers. b. the least stable of all the conformers. c. the gauche conformer. 3. Convert the following Newman projection into a dash-wedge 3-D drawing. H CH 3 Cl CH 3 H 3 C H 4. Draw all of the conformers of the following compound. Label as anti, eclipsed, or gauche, and indicate which conformer has the highest energy and which has the lowest energy.
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Unformatted text preview: H I H CH 3 H H 5. Draw structural formulas for the two chair conformations of iodocyclohexane. Which chair conformation has the lowest energy and why? 6. Draw the two chair conformations for trans-2-isopropyl-1-methylcyclohexane, and indicate which conformer would be more stable. Clearly draw substituents in axial and equatorial positions. 7. Draw the most stable conformation of: a. cis-1-tert-butyl-2-methylcyclohexane b. cis-1-tert-butyl-3-methylcyclohexane c. trans-1-tert-butyl-4-methylcyclohexane...
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Practiceproblems5 - H I H CH 3 H H 5. Draw structural...

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