Spectroscopy Tutorial: Ketones


IR Spectroscopy

Ketones show a strong carbonyl stretch.

NMR Spectroscopy

Ketones have the general structure R-(C=O)-R. The hydrogen on the carbon adjacent to the carbonyl group will be at 2-2.7 ppm. Recall that normal “alkyl” protons are from 0-2 ppm.

Examples

Example 1

Example 2