Give the major product(s) of the following reactions: i) Tetrahydrofuran + H2NNH2/OH-

Here are the answers to questions 5 and 6:

5. Give the major product(s) of the following reactions

• i)
  • Explanation: The substrate is tetrahydrofuran, a stable cyclic ether. Ethers are generally unreactive towards hydrazine ($\text{H}_2\text{NNH}_2$) under basic conditions ($\text{OH}^-$). However, the reagent combination $\text{H}_2\text{NNH}_2/\text{OH}$ is characteristic of the Wolff-Kishner reduction, which is used to reduce ketones and aldehydes to alkanes. It is highly probable that the substrate was intended to be a cyclic ketone (e.g., cyclopentanone) for this reaction. Assuming the