Question

Which of the following reagents/reactions will convert ‘A’ to ‘B’?

• A. PCC oxidation
• B. Ozonolysis
• C. $BH_3$, $H_2O_2$/$–OH$ followed by PCC oxidation
• D. HBr, hydrolysis followed by oxidation by $K_2Cr_2O_7$.

Answer 1

Answer: (C)

$BH_3$, $H_2O_2$/$–OH$ followed by PCC oxidation

Answer 2

The first step involves addition of $H_2O$ to alkene according to anti-markownikoff’s rule while the second step involves oxidation of 1° alcohol to aldehyde.

So, the correct option is (C):** ** $BH_3$, $H_2O_2$/ $–OH$** ** followed by PCC oxidation.