Provide compounds that fit the following descriptions:

Question

a. Two amines that are gases at room temperature

b. A heterocyclic amine

c. A compound with an amine group on an aromatic ring

Accepted Answer

All right. Hi, everyone. So this question is asking us which set of a means will satisfy each of the corresponding descriptions. Part one, a gaseous amine at room temperature. Part two, a heterocyclic amine and part three, an aromatic ring with an amine substituent. So here we have four different answer choices proposing different a means for parts 12 and three which we will discuss in greater detail starting off with part one, right. Part one is asking about which of the following a means would be gaseous at room temperature or RT for short. Now recall that when it comes to a means right, amines tend to exist as a gas when they are relatively small, right? Because when a molecule is relatively small, it has I should say a lower molar mass. And so when a molecule has a lower molar mass, then the intermolecular forces that keep molecules attracted to one another are less strong, right, less prevalent. This makes the molecules more likely to be separated and therefore more likely to exist as a gas. So here let's go ahead and consider the four A means proposed for part one going from top to bottom, I have triamine, nn dimethyl Penan three amine, Octa hero one H quinoa zine and pentre amine. And so of the four amines provided for part one, right, tri methyl amine is the smallest one of the four. So therefore, tri methylamine is the one most likely to exist as a gas at room temperature. So trimet amine is our answer for part one. So on to the second part right, the second part ask as is asking us sorry to identify a heterocyclic a me. So let's talk about what the word heterocyclic means. Recall that in organic chemistry, a hetero atom is described as any atom that is not carbon or hydrogen. So nitrogen oxygen fluorine, et cetera are all examples of hetero atoms. And so a heterocyclic molecule is a ring structure or a molecule that contains a ring structure containing carbon and a hetero atom. Now, specifically we are looking for a heterocyclic amine which means that to answer part two of this question, we are looking for a ringing with nitrogen embedded within the ring structure itself. So lets compare our answer choices. The, the four that we have for part two from top to bottom, we have pine and and dimethyl cyclopar amine, cyclops, amine and pirolli one. Em. So when examining the structures of these four means I can see that options A and D are the two that have heterocyclic amines because both of them have ring structures that include nitrogen within the ring itself. So now our third and final part is asking us to identify which is or which are an aromatic ring with an amen substituent. So going from top to bottom, the four amines listed for part three are N and dimethyl Eline, one methyl pyridine, one em nnn try methyl benzene aum and pity. So when analyzing the structures of these four, a means here notice how all of them are actually aromatic, right? Because all of them have ring structures that either or benzene or are very similar to benzi. So all four of the AMS here are aromatic but not all of them have a mean substituents because we called it a substituent is any group or atom that is attached to a parrot chain, right? But it is not part of the parent chain itself. So again, considering the four choices I'm provided here for part three, notice how only two of them contain a nitrogen atom connecting to the benzene ring but not necessarily part of the ring itself. So options A and see would fit the criteria in that sense because notice how options B and D have nitrogens within the ring, so they would not be considered substituents. So now that we've discussed all three parts of this question, we can see that option A is the only option that satisfies all three conditions. So therefore, option A in the multiple choice is going to be our answer. And there you have it. So with all that being said, thank you so very much for watching and I hope you found this helpful.

Provide compounds that fit the following descriptions:

a. Two amines that are gases at room temperature

b. A heterocyclic amine

c. A compound with an amine group on an aromatic ring

Key Concepts

Amines

Heterocyclic Compounds

Aromatic Compounds

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