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Crash Course
Intro to Substitution Reactions - Crash Course Organic Chemistry
Substitution reactions can have really powerful effects, both good and bad, in our bodies. You might remember substitution reactions as displacement reactions from general chemistry, but (you guessed it!) in organic chemistry they’re a...
Crash Course
Diazonium Salts & Nucleophilic Aromatic Substitution: Crash Course Organic Chemistry
Have you ever wondered where cured meats like salami or pepperoni get their bright red color? Of course its from organic chemistry! A chemical called nitric acid gives them that bright color, while also increasing their shelf. It's also...
Professor Dave Explains
Diazomethane Synthesis and Applications (Arndt-Eistert Homologation)
In learning about carbenes, we discovered the importance of diazomethane. So it will be a good idea to learn how to make this molecule, as well as some other things we can do with it, including something called the Arndt-Eistert...
Professor Dave Explains
Heterocycles Part 2: Pyridine
In the previous tutorial, we learned about some five-membered aromatic heterocycles. Those were furan, thiophene, and pyrrole. Now let's learn about a six-membered one, pyridine. This one is ubiquitous in nature, so let's get the scoop...
Catalyst University
Delta-Aminolevulinate Synthase (ALA Synthase): Physiology, Biochemistry, and Organic Mechanism
Delta-Aminolevulinate Synthase (ALA Synthase): Physiology, Biochemistry, and Organic Mechanism
Professor Dave Explains
Gabriel Amine Synthesis
It's time to learn some name reactions! We've seen a lot of these already, but now we are going to hit several dozen more. First up, the Gabriel synthesis of primary amines. This is an old one, from 1887. Let's check out some old school...
Khan Academy
Sn2 Reactions
Bromomethane and hydroxide are the components used in these examples. Sal demonstrates how the rate-determining steps in these Nucleophilic Substitutions involve both reactants. The way Sal attempts humor with the technical term of...
Khan Academy
Khan Academy: Fisher Esterification
A video introducing the mechanism of a fisher esterification where the esterification of a carboxylic acid occurs. [17:11]
Khan Academy
Khan Academy: Electrophilic Aromatic Substitution: Halogenation
Explains what happens during the halogenation of benzene. [8:40]