In this video, we're going to take a look at the Suzuki reaction. Now, the Suzuki coupling reaction involves the coupling between a carbon halide and an organoboron compound. We're going to say the reaction creates conjugated compounds composed of alkenes, styrenes, or bipyridyls. Now remember, a styrene, the generic form of it, is just a benzene ring connected to 2 alkene carbons.
Now, if we look at the generic setup for a cross coupling reaction, we'll see that it's composed of a carbon halide that is represented by R1X, a coupling agent which is R2C2. We have MLn here. M is a transition metal. L is the ligand attached to it and usually, in terms of the number of ligands, it's usually 2 or 4. Through the use of this transition metal catalyst, we can have the combining of R1 to R2 to give us our coupling product. Through this process, we also form some byproducts.
Now taking this generic cross coupling reaction model, we can apply it to the Suzuki coupling reaction. With the Suzuki coupling reaction, we still have a carbon halide. Here, the R1 group of the carbon halide is represented by a vinyl or aryl group. Next, we have our coupling agent in the form of an organoboron compound. Here, R2 of the organoboron compound is represented by, vinyl or aryl or an alkyl group. Then, we're going to say here that C, in terms of my coupling agent, would be represented by BR2 inside the Suzuki coupling reaction. Here, the Y can represent different things: Y could be an OH (boronic acid). Y could be an OR group where R is a carbon. So, it'd be like boronic ester R2. Y could be an alkyl group, like BR2, where R could be a methyl or it could be an ethyl.
Then we're going to say that the X group of the carbon halide is represented by our typical really good leaving groups of chlorine, bromine, iodine, or a triflate. Now, what's happening in this reaction is just that the carbon halide loses its X group. The organoboron group loses its BY2 group. And they are lost as byproducts. And then the R1 and the R2 left behind, combine to form our coupling product. That's fundamentally what's going on in terms of the Suzuki coupling reaction. And as long as you can approach it with this simple mindset, you'll be able to identify the types of products you're going to obtain within the Suzuki coupling reaction before we even cover the reaction mechanism.
So for now, guys, click on to the next video and see how I approach this example question. If you think you can, answer the question on your own, attempt it. If you get stuck, again, just click on the next video and see how I answer this Suzuki coupling reaction.