Consider the molecule below: H₂C H₂C CH₂CH3 CH₂CH3 Consider rotation around the indicated bond. [1] Draw a Newman projection for the lowest energy conformer of this molecule looking down the indicated bond. [2] Draw a Newman projection for the highest energy conformer of this molecule looking down the indicated bond.

Consider the molecule below: H₂C H₂C CH₂CH3 CH₂CH3 Consider rotation around the indicated bond. [1] Draw a Newman projection for the lowest energy conformer of this molecule looking down the indicated bond. [2] Draw a Newman projection for the highest energy conformer of this molecule looking down the indicated bond.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter6: Alkanes & Alkenes

Section: Chapter Questions

Problem 4E: Consider the molecule 1-bromo-2-methylbutane. C3 and C4 should be drawn as Et as in theexample. This...

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Consider the Newman projection below. a. Draw a full Lewis structure of this molecule with R1=Me,R2=Et , and R3=iPr . b. Given the sizes of these R groups (R3R2R1) , does the Newman projection above show thelowest potential energy conformation of this bond? If not, draw a Newman projectionshowing the lowest P.E. conformation (sighting down this same bond). c. To draw a Newman projection in the lowest P.E. conformation, the following rule of thumbusually applies: Place the largest group on the front carbon anti to the largest group on theback carbon. Is your answer to the previous question consistent with this rule of thumb?
Following is a chair conformation of cyclohexane with the carbon atoms numbered 1 through 6. (a) Draw hydrogen atoms that are above the plane of the ring on carbons 1 and 2 and below the plane of the ring on carbon 4. (b) Which of these hydrogens are equatorial? Which are axial? (c) Draw the alternative chair conformation. Which hydrogens are equatorial? Which are axial? Which are above the plane of the ring? Which are below it?
Consider the molecule 1-bromo-2-methylbutane. C3 and C4 should be drawn as Et as in theexample. This group is called an ethyl group and can be considered a sphere about twice the sizeof a methyl group. Draw the following Newman projections sighting down the C1C2 bond... a. The lowest potential energy conformation. b. The highest potential energy staggered conformation.
Use your answers from Problem 2.48 to complete the table showing correlations between cis,trans and axial,equatorial for disubstituted derivatives of cyclohexane. Draw the alternative chair conformations for the cis and trans isomers of 1,2-dimethylcyclohexane, 1,3-dimethylcyclohexane, 1,4-dimethylcyclohexane. (a) Indicate by a label whether each methyl group is axial or equatorial.
The diaxial conformation of cis-1, 3-dimethylcyclohexane is approximately 23 kJ/mol (5.4 kcal/mol) less stable than the diequatorial conformation. Draw the two possible chair conformations, and suggest a reason for the large energy difference.
myo-Inositol, one of the isomers of 1,2,3,4,5,6-hexahydroxycyclohexane, acts as a growth factor in both animals and microorganisms. Draw the most stable chair conformation of myo-inositol.
Assign the absolute configuration of all molecules. Draw the most stable conformer in Newman projects with respect to bond C2-C3; for both a) and b). Draw Fisher projections for all molecules.
Assign the absolute configuration of all molecules. Draw the most stable conformer in Newman projects with respect to bond C2-C3; for both a) and b). Draw Fisher projections for all molecules. do in detail complete
Draw one chair conformer of (1S,2R,4R)-4-chloro-2-methylcyclohexan-1-ol. Include all groups of the three stereocenters, but no other hydrogens.
Imagine that this worksheet has sucked you the plane of the page, and you are now facing the indicated bond of the drawn molecule. a. Draw the six main Newman projections for the indicated bond: three eclipsed, three staggered. b. Label which conformers are eclipsed ands taggered.c. Identify the most and least stable conformer, and explain your reasoning.
Draw 2,4-dimethylhexane as a bond-line structure. Then, looking down the C3 – C4 bond, draw a Newman projection representation of the 1) lowest energy (most stable) and 2) highest energy (least stable) conformations.
Draw 2-methyl-4-sec-butyl cyclohexane in its chair conformation. Then draw the same molecule after a chair flip has occurred. Furthermore, provide the Newman projection for the most stable conformation.