Name the following amines, and identify them as primary, secondary, or tertiary:
b.

Question

Name the following amines, and identify them as primary, secondary, or tertiary:

b. Chemical structure of a cyclic amine with an amine group, labeled for identification as primary, secondary, or tertiary.

Accepted Answer

Alright. Hey everyone. So for this question, let's go ahead and provide the Iupac name of the amine below classify the given amen as primary secondary or tertiary. Now, in this case, we have four different answer choices. Each proposing a different Iupac name for the Yamen and classifying the amine itself as either tertiary or secondary. So before discussing the actual Iupac name, I want to first go ahead and discuss the classification because recall it a means can be classified as primary secondary or tertiary depending on how many carbon atoms are attached to the nitrogen of the amine, right? An amine is considered to be primary if it has only one carbon atom attached to nitrogen. So similarly, right? And a mean is secondary if it has two carbon atoms attached to nitrogen and it is tertiary, if there are three carbon atoms attached to nitrogen. So considering the structure of the amine provided, right, we can see that the nitrogen here is connecting to three different R groups and therefore is attached to three different carbons. So therefore the given a mean is tertiary, which means I can go ahead and eliminate options. B and D because both state that this compound is a secondary amen, which would not be accurate. Now, in this case, we do have a tertiary amen, right? But the three R groups attached to nitrogen are actually different from each other. So this means that this compound is an asymmetrical tertiary. A mean. Now the reason why I bring up the fact that it is asymmetrical is because we can compare the different R groups and distinguish between a parent cane and any substituents. So I can see here that the longest chain of carbons attached to nitrogen would be this eight member ring. And so the eight member ring would be our parent chain. Now eight carbons would indicate that it would be octane, oops that it would be octane, right? But recall that since this is a ring structure, I would place the prefixed cyclo beforehand. So its cyclo octane now recall that sometimes modifiers are necessary to specify what functional group is present in the compound. So in this case, right? Because the functional group in question is an amine, we're going to go ahead and add the appropriate modifier. In this case, the e at the end of cyclo octane is dropped entirely and replaced with the word A me, right? So we go from Cyclo octane to cyclo octane A me. So now we can go ahead and discuss substituents and substituents are listed in alphabetical order before the name of the parent chain. Now, in this case, I have only two substituents. In this case, I have one methyl group, which is a one carbon alki group and I have one ethyl group which is a two carbon alky group. So now recall it for every substituent present on the compound, its position must be specified. Right. Now, generally, you would do this by adding a number in front of the substituents name to specify where on the parent chain it is. But notice how neither of these substituents are on the cyclo octane ring. Instead they are both on the nitrogen atom. So instead of adding a number to indicate their position, I would simply write the capital N beforehand and separate that with a dash. So that becomes N dash, Methyl and N dash Ethyl. So here, like I mentioned previously, right, the next step is to arrange the substituent names alphabetically. So because the E in Ethyl goes before the M in methyl, my ethyl group is written first. So that's N dash, Ethel dash, N dash, Methyl, Cyclo octane amine with no spaces in between, right. So this is all one word and there you have it. So comparing the AEC name though we just came up with or figured out, I should say our answer is going to be option C in the multiple choice because the Iupac name of the given amine would be N ethyl, N methyl, Cyclo octane amine and the amine itself is tertiary. So with that being said, thank you so very much for watching. And I hope you found this helpful.

Name the following amines, and identify them as primary, secondary, or tertiary:
b.

Verified video answer for a similar problem:

Key Concepts

Amines

Nomenclature of Amines

Classification of Amines

Name the following amines, and identify them as primary, secondary, or tertiary:b.

Verified video answer for a similar problem:

Key Concepts

Amines

Nomenclature of Amines

Classification of Amines

Name the following amines, and identify them as primary, secondary, or tertiary:
b.