Question

The most suitable reagent for the following conversion
$RC{H}_{2}OH\stackrel{\text{PCC in}C{H}_{2}C{l}_2}{\to }RCHO$

• A. $KMn{O}_4$
• B. $K_{2}C{r}_2{O}_7$
• C. $PCC$
• D. None of the above

Answer 1

The correct option is C $PCC$

PCC(Pyridinium chlorochromate) is a mild oxidizing agent. It converts $1^o$ alcohols to aldehydes and $2^o$ alcohols to ketones, but is not strong enough to convert primary alcohols to carboxylic acids. Hence PCC is used for the following conversion:
$RC{H}_{2}OH\stackrel{\text{PCC in}C{H}_{2}C{l}_2}{\to }RCHO$