Sign up for free to keep watching this solution

Video Solution: Write a structural formula for the most stable conformation ...

Problem

Write a structural formula for the most stable conformation of each of the following compounds: 

Video Transcript

So, let's go ahead and come up with the most stable chair conformation for this, so guys we can go ahead and say that we've got cis, right? The one in four positions and trans the one and two positions here and we can say two and 4 but what's important now is that we go ahead and draw our chair conformation and we keep track of this information. So one, let's say that it's both on the wedge, so what that means it's going up, let's call this the one position, two, right? It's going down, so it's going to look like that and then three is going to be over here, right? Well, it's our F 4 is going to be over here, so we're going to have up in equatorial. Now, we've got two axial positions and one equatorial it can be do better? yeah, right? All we need to do is give ourselves a chair flip, so we get something like that now and now that means, and now what that means is that this is over here it's going to be an equatorial position, this down here is now also going to be an equatorial position, right? since it shifted up here and now this four position, right? It was going up and now it's going to be in the axial position, so this is by far the more, the better confirmation, right? to have more of your substituents of the same size, right? in equatorial positions, so guys, let me know if you have any questions, if not, let's move on.

Related Practice Problems

In the following equilibrium transformation, towards which direction does the ...

In the following equilibrium transformation, towards which direction does the ...

The change is free energy on flipping from a cyclohexane conformer with the in...

The change is free energy on flipping from a cyclohexane conformer with the in...

Using the cyclohexane scaffold shown below, draw the structural formula of all...

Using the cyclohexane scaffold shown below, draw the structural formula of all...

Draw the most stable chair conformation for the following molecule. Use the te...

Draw the most stable chair conformation for the following molecule. Use the te...

Circle which isomer is more stable, cis-1,3-dimethylcyclohexane or trans-1,3-d...

Circle which isomer is more stable, cis-1,3-dimethylcyclohexane or trans-1,3-d...

Draw the most stable chair conformation of the molecule shown below and explai...

Draw the most stable chair conformation of the molecule shown below and explai...

Draw the most stable chair conformer of the most stable isomer of 1,3,5-trimet...

Draw the most stable chair conformer of the most stable isomer of 1,3,5-trimet...

Consider (1R, 3S)-1,3-diiodocyclohexane. Draw the two chair conformations and ...

Consider (1R, 3S)-1,3-diiodocyclohexane. Draw the two chair conformations and ...

For the pair drawn below, choose the MORE STABLE molecule.

Does the  UNS...

For the pair drawn below, choose the MORE STABLE molecule. Does the  UNS...

Consider (1S, 3R)-1,3-dimethylcyclohexane. Draw the two chair conformations an...

Consider (1S, 3R)-1,3-dimethylcyclohexane. Draw the two chair conformations an...

Draw the LEAST stable chair conformation of 2,3-dipropyl-1,4-dimethylcyclohexa...

Draw the LEAST stable chair conformation of 2,3-dipropyl-1,4-dimethylcyclohexa...

Perform a ring flip on the following compound and determine which structure is...

Perform a ring flip on the following compound and determine which structure is...

Draw the most stable configuration.

trans-1-bromo-3-ethylcyclohexane
...

Draw the most stable configuration. trans-1-bromo-3-ethylcyclohexane ...

Draw the LEAST stable chair conformation of 2,3-dipropyl-1,4-dimethylcyclohexa...

Draw the LEAST stable chair conformation of 2,3-dipropyl-1,4-dimethylcyclohexa...

A. Draw the two chair conformations of cis-1,3-di-tert-butyl-cyclohexane.

B. ...

A. Draw the two chair conformations of cis-1,3-di-tert-butyl-cyclohexane. B. ...

One chair conformation of the sugar galactose is given below. Complete the tet...

One chair conformation of the sugar galactose is given below. Complete the tet...

Indicate the most and the least stable conformations. Give your reasoning. ...

Indicate the most and the least stable conformations. Give your reasoning. ...

A “planar representation” of a substituted cyclohexane ring is giv...

A “planar representation” of a substituted cyclohexane ring is giv...

For the pair of molecules drawn below, choose the letter that corresponds to...

For the pair of molecules drawn below, choose the letter that corresponds to...

Which diastereomer is most stable?

 
...

Which diastereomer is most stable?   ...

Which is the most stable conformation for  cis-1-bromo-3-methylcyclohexan...

Which is the most stable conformation for  cis-1-bromo-3-methylcyclohexan...

For the following cyclohexane derivative, draw the most stable chair conf...

For the following cyclohexane derivative, draw the most stable chair conf...

Put each threesome below in order of stability from high to low using > or...

Put each threesome below in order of stability from high to low using > or...

Focusing on just one of the six membered rings from the structure in  ave...

Focusing on just one of the six membered rings from the structure in  ave...

Consider a single enantiomer of trans-1-methyl-3-tert-butylcyclohexane. (For t...

Consider a single enantiomer of trans-1-methyl-3-tert-butylcyclohexane. (For t...

Draw the lowest energy chair conformer for each structure (A and B). Rank...

Draw the lowest energy chair conformer for each structure (A and B). Rank...

Draw the flipped conformation of the chair and circle the lower energy conform...

Draw the flipped conformation of the chair and circle the lower energy conform...

Complete the chair forms of the molecules shown in the box, on the templates p...

Complete the chair forms of the molecules shown in the box, on the templates p...

The preferred conformation of cis-1-isopropyl-2-methylcyclohexane is...

The preferred conformation of cis-1-isopropyl-2-methylcyclohexane is...