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SciShow
What Causes 'Old People Smell'?
If you've ever associated a smell with old age, you weren't imagining it—it all has to do with the chemistry of our skin.
Professor Dave Explains
Vilsmeier Reaction
What's a formylation? The introduction of a formyl group, of course. This refers to a way to make aldehydes. The Vilsmeier reaction is one such method, developed in 1927. Let's get a look at this reaction, its mechanism, and the...
Professor Dave Explains
Mannich Reaction
One of the most important name reactions is the Mannich reaction, named after German chemist Carl Mannich, who developed it in 1912. In its original form, this takes formaldehyde, an enolizable ketone, and a secondary amine, and produces...
Professor Dave Explains
Organic Chemistry Mechanism Challenge 2
Need some organic chemistry practice? Here's a tricky mechanism to try!
Khan Academy
Khan Academy: Reactions of Ketones: Keto Enol Tautomerization
Looks at how keto and enol tautomers are formed in a reaction. [8:02]