Please help! If you could explain in detail, thanks. Question 1 Question 2 Question 3

Post by **answerhappygod** » Mon Jul 11, 2022 1:38 pm

Please help! If you could explain in detail, thanks.
Question 1

: Please Help If You Could Explain In Detail Thanks Question 1 Question 2 Question 3 1 (66.88 KiB) Viewed 31 times

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Drawing Both Chair Conformers from a 2D Picture • Draw the two possible chair conformers of the structures below. Up (wedge) means pointing above the central plane. Down (dash) means the substituent points below the plane. OH ОН CI
Calculating Strain in Chairs Conformations When there is a substituent on a chair, there are two possible ring conformations. To determine the most stable conformation, we need to assess the steric and torsional strain. H- H H.H. Find any incidences of steric strain in the molecules below. H HH H H H H H. -I • An equatorial methyl group causes NO increase in steric strain unless there are other substituents pointing to the side. H • An axial methyl ALWAYS has steric strain with other 1,3 diaxial substituents. H H H H H H H H H H H H poj H H H.H. H -H I. HH- H H H H H WHY H H H H H -H
Practice Drawing and Calculating Steric Strain 1. Now consider cis-1,2-dimethylcyclohexane. a. Draw the two possible chair conformers. b. Calculate the relative energy of each and determine which is the most stable. 2. Now consider trans-1,2-dimethylcyclohexane. a. Draw the two possible chair conformers. b. Calculate the relative energy of each and determine which is the most stable.