Question

What is ozonolysis of 2-methylbuta-1,3-diene?

Answer 1

Here's what I get.

Explanation:

The ozonolysis of 2-methylbuta-1,3-diene (isoprene) cleaves both the `"C=C"` double bonds and converts them to carbonyl groups.

If the "workup" uses reductive conditions (e.g., zinc dust), the products are aldehydes and ketones.

The reaction with 2-methylbuta-1,3-diene is:

The products are 2 mol of methanal (formaldehyde) and 1 mol of 2-oxopropanal (pyruvaldehyde).