Hydroboration Lab
Questions:
1. What is the purpose of using a flame-dried apparatus and a drying tube during the hydroboration reaction? What undesired reaction will occur if water is present?(3pts)
2. Why is argon used to displace the air in the reaction apparatus for the hydroboration step? (2 pts)
3. Briefly describe how GC (gas chromatography) separates the compounds in the crude mixture. Based on this, why does 1-octanol have a higher retention time than 2-octanol? (3 pts)
4. Show the first step in the mechanism for hydroboration E-3-methylpent-2-ene,including the transition state. You don’t have to show the mechanism for the oxidation steps, but provide the alcohol (major product) produced after oxidation. (3 pts)
