Ester Reactions: Esterification - Video Tutorials & Practice Problems
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concept
Ester Reactions: Esterification
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In this video, we're gonna talk about a scarification. Now, under this type of reaction, a carbolic acid and an alcohol undergo a condensation reaction to form an ester. Now, when we say condensation reaction, this is just a reaction that combines two molecules through the loss of water. Now, here to do this, we're gonna say the carbolic acid loses its oh portion and the alcohol oxygen loses its H portion. Now, for this to happen, an H plus catalyst is required for the reaction to start. So if we take a look here at this basic depiction of Aster application, we have a Carboy acid, remember the squiggly line just means that it's connected to something else which we don't really care about. And over here we have an alcohol that's also connected to something else we don't care about. Focus on the oh of the carbolic acid and the h of the alcohol oxygen. When they come in close contact to each other, we lose water. And remember it's this H plus catalyst that gets the whole process going losing water. Now, this carbon needs to replace the bond that it just lost to the oh this oxygen needs to replace the bond that it lo just lost from losing its h. So what do they do? They bond to each other? So here we create an ester linkage. And remember an ester group is when you have a carbon group connected to o connected to a carbon. So we just went from combining a carb so acid and an alcohol into an ester group. So this is ester application through a condensation process.
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example
Ester Reactions Esterification Example
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46s
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Determine the ester product formed when Banic acid reacts with two propanol. All right. So remember that aeration is a condensation reaction. We're gonna lose water and we do this by losing the oh of the carbolic acid and the h of the alcohol. And what's left behind those pieces connect together to form an ester linkage creating our ether group. So here goes the bond that's created and now it's connected to this portion. So this would be the answer that's formed from the condensation reaction or aeration reaction between Banno acid reacting with two propanol.
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Problem
Problem
Aspirin also known as acetylsalicyclic acid possesses an ester group that is formed from the reaction between ethanoic acid and salicyclic acid. Determine the structure of aspirin after the condensation between ethanoic acid and salicyclic acid.
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