Problems and exercisesBimolecular Nucleophilic Substitution

1. Complete the reactions

1. CH₃CH₂Br + NaI (acetone) →
2. CH₃I + NaCN →
3. CH₃CH₂CH₂Cl + NaSCH₃ →
4. CH₃Br + NH₃ →

2. Stereochemistry

What product is obtained from (R)-2-bromobutane with NaCN in DMSO? State its configuration.

3. Stereospecific

Why is the S_N2 reaction said to be stereospecific?

4. Identify the roles

In the reaction CH₃CH₂I + CH₃O⁻ → CH₃CH₂OCH₃ + I⁻, identify the substrate, the nucleophile and the leaving group.