1.) Carefully draw two very neat cyclohexane chair molecules with the “headrest on the left”. Then...
1.) Carefully draw two very neat cyclohexane chair molecules with the “headrest on the left”. Then draw two very neat cyclohexane molecules with the “headrest on the right”. Use a ruler or straightedge for the lines and try to make the C-C bonds about the same length. The axial and equatorial bonds do NOT need to be shown for this problem.
2.) Carefully draw another cyclohexane chair molecule with the “headrest on the left”. To this drawing, draw all of the lines for the axial hydrogens. (Try to make the C-H bonds about the same length as the C-C bonds of the ring.)
3.)Carefully draw yet one more cyclohexane chair molecule with the “headrest on the right”. To this drawing, draw all of the lines for the equatorial hydrogens. (Try to make the C-H bonds about the same length as the C-C bonds of the ring.) Make sure that your lines are parallel to bonds in the cyclohexane chair.
Homework Answers
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1.) Carefully draw two very neat cyclohexane chair molecules
with the “headrest on the left”. Then...
Draw SIX (6) cyclohexane molecules in the CHAIR conformation. Draw in all axial and equatorial hydrogens.
Draw SIX (6) cyclohexane molecules in the CHAIR conformation. Draw in all axial and equatorial hydrogens.
with explanation 1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial...
with explanation
1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial and equatorial positions on chair form of cyclohexane. 2) Draw chair, half-chair and boat conformations of ethyl cyclohexane and draw an energy diagram to explain their relative stability: 3) Draw two possible chair conformations for each of the mono-substituted cyclohexanes and determine their relative stability with proper explanation. OH 4) Draw two possible chair conformations for each of the di-substituted cyclohexanes and determine their...
Help Organic Chem part 4 Cyclohexane Conformations Put your model of cis-1,3-dichlorocyclohexane into a chair conformation....
Help Organic Chem part 4
Cyclohexane Conformations Put your model of cis-1,3-dichlorocyclohexane into a chair conformation. Sometimes the easiest way to do this is by adjusting it to make the axial bonds alternate up and down. Now convert it to the other chair structure, asking the instructor for help if needed. Is the second conformation still cis or is it trans? Are the two conformations the same or are they different? Draw chair structures of both conformations making sure to...
1. For each of these molecules, draw both chair conformations. Include all the hydrogens on the...
1. For each of these molecules, draw both chair conformations. Include all the hydrogens on the ring. Circle the more stable chair conformation of each molecule. CH3 .?? H3C CH3 H3C CH3 2. Which of these two molecules is more stable, A or B? Circle your answer, and support your decision by drawing all relevant chairs.
Question 1: Make models of cyclobutane and cyclohexane and then carefully draw these models a) Does...
Question 1: Make models of cyclobutane and cyclohexane and then carefully draw these models a) Does anything become apparent to you when you are making one model compared to the other? b) Describe the shapes of these molecules and indicate what types of strain might be present in each. c) Are either of your models "flat" like a hexagon or a square? Question 2: Make a model of cyclopentane. a) Is your model flat like a pentagon? b) Why or...
Question 1: Make models of cyclobutane and cyclohexane and then carefully draw these models a) Does...
Question 1: Make models of cyclobutane and cyclohexane and then carefully draw these models a) Does anything become apparent to you when you are making one model compared to the other? b) Describe the shapes of these molecules and indicate what types of strain might be present in each. c) Are either of your models "flat" like a hexagon or a square? Question 2: Make a model of cyclopentane. a) Is your model flat like a pentagon? b) Why or...
When drawing your chair structures change the applicable hydrogen atoms and leave the rest of the hydrogens present.
When drawing substituted cyclohexanes, they can be drawn in either a chair form (with axial and equatorial substituents) or in a line form (using wedges and dashes to indicate the relative positions and locations of substituents). These same types of drawings can be used to illustrate what happens after a chair flip (aka ring flip). Given the structures drawn in each part below, draw the corresponding chair conformation that would result from a chair flip.When drawing your chair structures change...
On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bro...
On a separate sheet of paper, draw the two alternative chair
conformations for the product formed by the addition of bromine to
4-tert-butylcyclohexene. The Gibbs free-energy differences between
equatorial and axial substituents on a cyclohexane ring are 21
kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the
ratio of the two observed products at 46.0 °C using the following
equation: The gas constant, R, is 8.314 J/K·mol. (Enter your answer
to two significant figures.) Ratio: ____ to 1 Major...
Problem 6. (30 points) The molecule shown below is a common steroid. Redraw this steroid as...
Problem 6. (30 points) The molecule shown below is a common steroid. Redraw this steroid as a careful perspective drawing, using chair conformations for the cyclohexane rings and a reasonable conformation for the cyclopentyl group. The Bring should have the same conformation as the chair cyclohexane you drew in problem 1. You do not need to show all of the hydrogens on the rings; it is only necessary to show the substituents and hydrogens that I have shown explicitly. You...
1. Draw (1S,3S)-3-aminocyclohexanecarbonitrile structure below: 2. Draw the two chair conformations of the above disubstituted cyclohexane...
1. Draw (1S,3S)-3-aminocyclohexanecarbonitrile structure below: 2. Draw the two chair conformations of the above disubstituted cyclohexane compound, before and after ring-flip. 3. Draw the Newman projections of both chair conformations about the C1−C6 and C3−C4 bonds. 4. Which conformation is the least stable one? Briefly explain your answer with words AND by showing it on the appropriate Newman projection.
with explanation
1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial and equatorial positions on chair form of cyclohexane. 2) Draw chair, half-chair and boat conformations of ethyl cyclohexane and draw an energy diagram to explain their relative stability: 3) Draw two possible chair conformations for each of the mono-substituted cyclohexanes and determine their relative stability with proper explanation. OH 4) Draw two possible chair conformations for each of the di-substituted cyclohexanes and determine their...
Help Organic Chem part 4
Cyclohexane Conformations Put your model of cis-1,3-dichlorocyclohexane into a chair conformation. Sometimes the easiest way to do this is by adjusting it to make the axial bonds alternate up and down. Now convert it to the other chair structure, asking the instructor for help if needed. Is the second conformation still cis or is it trans? Are the two conformations the same or are they different? Draw chair structures of both conformations making sure to...
1. For each of these molecules, draw both chair conformations. Include all the hydrogens on the ring. Circle the more stable chair conformation of each molecule. CH3 .?? H3C CH3 H3C CH3 2. Which of these two molecules is more stable, A or B? Circle your answer, and support your decision by drawing all relevant chairs.
When drawing substituted cyclohexanes, they can be drawn in either a chair form (with axial and equatorial substituents) or in a line form (using wedges and dashes to indicate the relative positions and locations of substituents). These same types of drawings can be used to illustrate what happens after a chair flip (aka ring flip). Given the structures drawn in each part below, draw the corresponding chair conformation that would result from a chair flip.When drawing your chair structures change...
On a separate sheet of paper, draw the two alternative chair
conformations for the product formed by the addition of bromine to
4-tert-butylcyclohexene. The Gibbs free-energy differences between
equatorial and axial substituents on a cyclohexane ring are 21
kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the
ratio of the two observed products at 46.0 °C using the following
equation: The gas constant, R, is 8.314 J/K·mol. (Enter your answer
to two significant figures.) Ratio: ____ to 1 Major...
Problem 6. (30 points) The molecule shown below is a common steroid. Redraw this steroid as a careful perspective drawing, using chair conformations for the cyclohexane rings and a reasonable conformation for the cyclopentyl group. The Bring should have the same conformation as the chair cyclohexane you drew in problem 1. You do not need to show all of the hydrogens on the rings; it is only necessary to show the substituents and hydrogens that I have shown explicitly. You...
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