Catalyst University
Biotin Biosynthesis in Bacteria
In this video, we will discuss the bacterial biosynthesis of vitamin B7, biotin.
Professor Dave Explains
Organometallic Reactions Part 4: Migratory Insertions
Migratory insertions are very different than the first three types of organometallic reactions we have looked at. For example, this process is only possible with ligands that are cis to one another. Let's look at how this works!
Professor Dave Explains
Wolff-Kishner Reduction
How can we reduce a ketone or aldehyde all the way to the alkane? We already learn one way, Clemmensen reduction. But what if we don't have any amalgamated zinc handy, you ask? Well there's an older way called Wolff-Kishner reduction....
Professor Dave Explains
Reduction of Esters With DIBAL-H
We know about a lot of different oxidizing and reducing agents that facilitate a variety of different transformations. But we haven't touched upon the precise transformation that can be achieved by diisobutylaluminum hydride, also known...
Professor Dave Explains
Practice Problem: Reducing Agents
For this one we need to know the ability of different reducing agents to react with various functional groups.
Catalyst University
Overview or Oxidation Reactions in OCHEM
Overview or Oxidation Reactions in OCHEM
Professor Dave Explains
Henry Reaction
The Henry reaction is sometimes called a nitroaldol reaction, because it involves the addition of a nitronate salt to a carbonyl compound. This is a great setup for a Nef reaction, which was learned in the previous tutorial. Let's look...
Professor Dave Explains
Practice Problem: Ozonolysis Reactions
Ozone isn't just for shielding us from harmful UV radiation! It's a handy-dandy synthetic tool. Try these on for size.
Professor Dave Explains
Practice Problem: Synthetic Strategy
We've got starting material and we've got a target molecule, and we've gotta figure out how to make the transformation in just two steps. Sift through that bag of synthetic tricks!
Professor Dave Explains
Practice Problem: Reaction of a Terminal Alkyne
We've got a terminal alkyne, and we're gonna do some stuff to it. What will we get? What's that Grignard reagent gonna do? Be careful!
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Practice Problem: Grignard Reactions
Grignards are all over the place! Better make sure we can draw the correct products of Grignard reactions. Try these for practice.
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Practice Problem: Four-Reaction Pathway
We are starting with benzene, we do four reactions, and what do we get? See if you can get the right answer!
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Practice Problem: Crossed Aldol Products
Enolate chemistry is tricky business! You might get more products than you think. Give this one a shot.
Professor Dave Explains
Practice-Problem: Two-Reaction Pathway
This time we have a starting material, and we are gonna do just two reactions. But it's a little tricky! See if you can figure it out.
Professor Dave Explains
Practice Problem: Oxidizing Agents
For this one we need to know the ability of different oxidizing agents to react with various functional groups, and what functional groups will result.