Back(i) Which of the following pairs of compounds would you expect to have different physical properties?
(ii) What is the relationship between each of the pairs?
(iii) Assign the absolute configuration of each stereocenter to confirm your answer.
(b)
Identify
1. constitutional isomers
2. stereoisomers
3. cis–trans isomers
4. chiral compounds
When pure (S)-lactic acid is esterified by racemic butan-2-ol, the product is 2-butyl lactate, with the following structure:
(a) Draw three-dimensional structures of the two stereoisomers formed, specifying the configuration at each asymmetric carbon atom. (Using your models may be helpful.)
(b) Determine the relationship between the two stereoisomers you have drawn
In Assessment 9.26, what is the relationship between the enantiomers of compound A and the enantiomers of compound B?
Draw the mirror image of the following molecule. Then, using the mirror image generated, switch the spatial orientation at the asymmetric center. Is the final structure the enantiomer of the original? If not, what is it?
For the molecules shown,
(i) count the number of stereocenters present and
(ii) draw all possible stereoisomers.
(iii) Identify the relationships between stereoisomers as enantiomers or diastereomers.
(a)
Do the following structures represent identical compounds or a pair of enantiomers?
Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?
c.
d.
What type of isomerism is indicated by each of the following pairs of molecules? Be as specific as possible.
(a)
Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?
a.
b.
Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?
c.
d.