Question
Chemistry Question on Chemical Reactions
Identify the correct reagents that would bring about the following transformation.
A
(i) H2O/H+
(ii) CrO3
B
(i) BH3
(ii) H2O2/O⊖H
(iii) PCC
C
(i) BH3
(ii) H2O2/O⊖H
(iii) alk. KMnO4
D
(iv)H3O⊕
(i) H2O/H+
(ii) PCC
Answer
(i) BH3
(ii) H2O2/O⊖H
(iii) PCC
Explanation
Solution
- BH3 performs hydroboration of the double bond.
- H2O2/OH− oxidizes the boron intermediate to an alcohol.
- PCC selectively oxidizes the alcohol to an aldehyde.