Question

In the following reaction \[\ce{CH3 - CH = CH - CH2 OH ->[PCC]}\] the product formed is ______.

Options

• CH₃ − CHO and CH₃CH₂OH

• CH₃ − CH = CH − COOH

• CH₃ − CH = CH − CHO

• CH₃ − CH₂ − CH₂ − CHO

Answer 1

In the following reaction \[\ce{CH3 - CH = CH - CH2 OH ->[PCC]}\] the product formed is CH₃ − CH = CH − CHO.

Explanation:

\[\begin{array}{cc}
\ce{CH3 - CH = CH - CH2 OH ->[PCC] CH3 - CH = CH - C - H}\\
\phantom{.................................................}||\\
\phantom{.................................................}\ce{O}\\
\end{array}\]

Where PCC: Pyridinium chlorochromate.

PCC oxidises primary alcohols to aldehydes