6. a. Draw both chair conformations for trans-1,2-dichlorocyclohexane. Label all unfavorable interactions. b. In 1,2-disubstituted cyclohexanes, the substituents interact not just with the ring itself, but also with each other. Draw Newman projections to explain where that interaction occurs in the chairs from part a.

6. a. Draw both chair conformations for trans-1,2-dichlorocyclohexane. Label all unfavorable interactions. b. In 1,2-disubstituted cyclohexanes, the substituents interact not just with the ring itself, but also with each other. Draw Newman projections to explain where that interaction occurs in the chairs from part a.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter7: Cycloalkanes

Section: Chapter Questions

Problem 17E: Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of...

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(a) Draw all stereoisomers formed by monochlorination of the cis and trans isomers of 1,2-dimethylcyclobutane drawn below. (b) How many constitutional isomers are formed in each reaction? (c) Label any pairs of enantiomers formed.
a model of cyclohexane in a chair conformation, and explain why the names “axial” and“equatorial’ are appropriate.
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Use flat representation of rings, not chair in the drawing. Determine the most and least stable. Consider the most stable chair for each of these isomers, and then draw the most stable and least stable isomer based on a comparison of the best chair for each one.
Consider the tricyclic structure B. (a) Label each substituent on the rings as axial or equatorial. (b) Draw B using chair conformations for each sixmembered ring. (c) Label the atoms on the ring fusions (the carbons that join each set of two rings together) as cis or trans to each other.
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Classify each carbocation as 1°, 2°, or 3°.
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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.
Explain why alkene A is more stable than alkene B, even though Bcontains more carbon atoms bonded to the double bond. Would youexpect C to be more or less stable than A and B?