Make a model and draw a three-dimensional structure for each compound. Then draw the mirror image of your original structure and determine whether the mirror image is the same compound. Label each structure as being chiral or achiral, and label pairs of enantiomers.
(a) cis-1,2-dimethylcyclobutane (b) trans-1,2-dimethylcyclobutane
(c) cis- and trans-1,3-dimethylcyclobutane (d) 2-bromobutane
Step 1 </p>
Very physical object has a mirror image I, but a chiral object has a mirror image that is different from the original object.
Nonsuperimposable mirror images are called enantiomers.
If we rotate there is no change in configuration.
Step 2 </p>
a) The mirror images of the Cis-1,2-dimethylcyclobutane are given below:
Step 3 </p>
b) The mirror images of the Trans-1,2-dimethylcyclobutane are given below:
Above mirror images are enantiomers.
Step 4 </p>
c) The mirror images of the cis-1,3-dimethylcyclobutane are given below: