Considering rotation around the bond highlighted in red, draw the Newman projection for the most stable and least stable conformations when viewed down thered bond in the direction of the arrow.Part 1 of 2H₁₂CHHDraw the Newman projection for the most stable conformation.Select a template tobegin.Part 2 of 2Draw the Newman projection for the least stable conformation.G心

Step 1: Step 2: Step 3: Step 4:

Answered: Considering rotation around the 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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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?
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.
Fill in the blanks: cis-1,3-Dimethylcyclohexane has two different chair conformations: one withboth methyl groups in __________ positions and one with both methyl groups in ____________ positions.
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?
a model of cyclohexane in a chair conformation, and explain why the names “axial” and“equatorial’ are appropriate.
Following is a planar hexagon representation for one isomer of 1,2,4-trimethylcyclohexane. Draw the alternative chair conformations of this compound and state which of the two is more stable.
4. Draw the Newman projection of the conformer below as it is drawn looking down the indicated C-C bond. Then draw the most stable conformer and the least stable conformer as Newman projections. PH. CH3 H H CI Newman of Drawn Newman of Most Newman of Least Conformer Stable Conformer Stable Conformer
Compare the following conformers of butan-2-ol. Match each conformer to their corresponding relative energy. Recall, the more stable the conformer the lower the energy. 1. ОН CH3 CH3 H 2nd Highest Energy 2. HỌH CH3 2nd Lowest Energy H3C OH Highest Energy 3. H3C. CH3 Lowest Energy OH H. CH3 4. >
4. Draw the most stable conformation for each of the following substituted cyclohexanes; then, in each case, flip the ring and redraw the molecular in the higher energy chair conformation. Shown all conformation in Newman projections. Fill in hydrogens to indicate unsubstituted carbons. a) b) most stable conformation: higher energy conformation: á most stable conformation: higher energy conformation: 3 Da
Font Paragraph Using a Newman projection, draw the most stable conformation of CH2-CH2. | ОН ОН
Draw the Newman projection so that it corresponds to the molecule and conformation shown when viewed down the red bond in the direction of the arrow. F H CH3 וויי? HS CH3
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