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Chapter 4: Q94P (page 185)

For each of the following structures, draw the most stable chair conformer.

Short Answer

Expert verified

We have to draw the most stable chair conformer:

a)

b)

Step by step solution

01

What is axial position and equatorial position

Axial position= In cycloheaxane a bond which is parallel to the axis of the ring is called its axial position.

Equatorial position= In cycloheaxane a bond which is perpendicular to the axis of the ring is called its equatorial position.

02

How to give priority 

The groups with the highest priority will placed on the equatorial positions and rest of the substituents will placed on the axial positions.

  1. Assign the priority order to the groups on the basis of atomic number. Higher the atomic number get highest priority.
  2. Double bond is considered as carbon is attached to 2 carbons.
  3. Triple bond is considered as carbon is attached to 3 carbons.

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Most popular questions from this chapter

a. How many asymmetric centers does the following compound have?

b. How many stereocenters does it have?

Naproxen, a nonsteroidal anti-inflammatory drug that is the active ingredient in Aleve (p. 115), has a specific rotation of +66. One commercial preparation result in a mixture with a 97% enantiomeric excess.

a. Does naproxen have the R or the S configuration?

b. What percent of each enantiomer is obtained from the commercial preparation?

a.Which of the following compounds can exist as cis-trans isomers?

b. For those compounds that can exist as cis and trans isomers, draw and label the isomers.

1 CH3CH = CHCH2CH2CH3

2 CH3CH2 C = CHCH3

|

CH2CH3

3.CH3CH = CHCH3

4. CH3CH2CH=CH2

Tamoxifen slows the growth of some breast tumors by binding to estrogen receptors. Is tamoxifen an Eor a Zisomer?

Which of the following has an asymmetric center?

CHBr2Cl BHFCl CH3CHCl2 CHFBrCl BeHCl
See all solutions

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