When $2$‑methyl‑$1$‑butanol ($\mathrm{C}{\mathrm{H}}_3\mathrm{CH}(\mathrm{C}{\mathrm{H}}_3)\mathrm{C}{\mathrm{H}}_2\mathrm{C}{\mathrm{H}}_2\mathrm{OH}$) is oxidised with pyridinium chlorochromate (PCC), what is the major product? Provide its common name and its IUPAC name.

Step-by-step solution

1. 1. Identify the functional group: $2$‑methyl‑$1$‑butanol is a primary alcohol. 2. PCC is a mild oxidising agent that converts primary alcohols to aldehydes. 3. Therefore the alcohol is oxidised to the corresponding aldehyde. 4. The structure of the aldehyde is $\mathrm{C}{\mathrm{H}}_3\mathrm{CH}(\mathrm{C}{\mathrm{H}}_3)\mathrm{C}{\mathrm{H}}_2\mathrm{CHO}$. 5. Common name: 2‑methylbutanal. 6. IUPAC name: 2‑methylbutanal (same as common).
2. Conclusion: The major product is 2‑methylbutanal.

Concept tested: Oxidation of primary alcohols with PCC

Published 10 September 2026 · Last updated 16 September 2026 · How this solution was prepared and checked