Refer to the molecule below. (1) Draw the newman projection for carbon #1 and #2. Let the carbon #1 containing the methyl group to be at the front while carbon #2 containing the methyl and ethyl group to be at the back of the newman projection. (2) Rotate the carbon #1 to 60 degree for 6 times until a 360 degree rotation was achieved. (3) Encircle the MOST UNSTABLE conformation. 3

Refer to the molecule below. (1) Draw the newman projection for carbon #1 and #2. Let the carbon #1 containing the methyl group to be at the front while carbon #2 containing the methyl and ethyl group to be at the back of the newman projection. (2) Rotate the carbon #1 to 60 degree for 6 times until a 360 degree rotation was achieved. (3) Encircle the MOST UNSTABLE conformation. 3

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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Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of methylcyclohexane in the chair conformation: a. When the methyl group is in an axial or equatorial (circle one) position, the molecule is inits lowest potential energy conformation. b. Label one Newman projection above anti and the other gauche to describe the relationshipbetween the methyl group and C3 of the ring. c. In general, which is a lower PE conformation, anti or gauche? d. Explain how your answer to b and c provide an explanation for why it is more favorable fora large group to be in an equatorial than an axial position.
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.
For pentane draw Newman projections for the Syn-periplanar, conformation. the Anti- periplanar conformation and a Gauche conformation. Use C2 as the front carbon and C3 as the back carbon. Label each conformation, circle the highest energy conformation andunderline the lowest energy conformation.
Draw the structure below as a Newman projection looking down the indicated bond in the conformation shown.
Fill on each conformation of (R)-2-chlorobutane
Pls do fast within 5 minutes and i will give like for sure Solution must be in typed form 1. The alcohol group is axial or equatorial. 2. The methyl group is axial or equatorial. 3. The substituents are trans or cis. 4. The given chair conformation is higher/equal/lower in energy than the flipped conformation (not provided). 5. When drawing a planar form of the cyclohexane given, the methyl group would be wedged or dashed.
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.
According to the following structure, draw the Newmann projections in which you must indicate: a) the most stable conformation and explain why it is more stable, b) the least stable conformation and explain why; c) a conformation where there is a gauche interaction.
Draw the most stable conformation of the disubstituted cyclohexane below.
a) Sighting down the C3-C4 bond, draw the gauche (60 degrees) and anti (180 degrees) Newman projections of 2,4-dimethylhexane. b) Circle the conformation that you drew that is lower energy.
starting from the wedge and dash structure below, rotate the back carbon to provide the newman projection in the least stable conformation