Question

1)         Draw the chiral and achiral stereoisomers of the compound of the formula            HOOC-CHBr-CHBr-COOH.

            Identify the stereoisomers as chiral and achiral, respectively.

            Assign absolute configurations to all asymmetric carbon atoms.

2)         Draw the structure of (3R,4S)-3-hydroxy-4-methyloctane, of (3R,4R)-3,4-   dichlorohexane, of the achiral diastereomer(s) of (3R,4R)-3,4-    dichlorohexane, and of all isomers of 1,2-dimethylcyclopropane.

4)         Imagine substituting each hydrogen atom, in turn, one at a time, of 3-         methylpentane to yield a series of compounds of molecular formula        C₆H₁₃Cl. Give the structure of each of the isomers, classify them as chiral    or achiral, respectively, and give the stereochemical relationship of each           stereoisomer with every other one. Think!

Answer 1