Question

What is the product formed when CH₃–CH=CH₂ is treated with B₂H₆ followed by the action of H₂O₂?

• A. CH₃CH₂CH₂OH
• B. CH₃CH₂CH₃
• C. CH₃CH₂CHO
• D. CH₃CH(OH)CH₃

Answer 1

The Correct Option is A

When CH₃–CH=CH₂ (propene) is treated with B₂H₆ (diborane) followed by the action of H₂O₂ (hydrogen peroxide), the product formed is (A) CH₃CH₂CH₂OH (1-propanol). 
The reaction is known as hydroboration-oxidation. In this reaction, B₂H₆ adds to the double bond of propene, resulting in the formation of an organoborane intermediate. Subsequent treatment with H₂O₂ converts the organoborane intermediate to an alcohol. In this case, the specific product formed is 1-propanol (CH₃CH₂CH₂OH).