Write the common name for each of the following: a. CH 3 −CH 2 −CH 2 −O−CH 2 −CH 2 −CH 3

All right. Hi, everyone. So this question is asking us to provide the common name of the compound shown below. Option A says pro eater. Option B says metox ethane. Option C says ethyl methyl ether and option D says methyl ethyl ether. So the first thing I want to point out here is the fact that in the compound provided we have one oxygen atom in between two carbon atoms or two ethyl groups. This is in line with the general structure or the general formula of Ror which is characteristic of an ether. So when it comes to the common name of an ether, the oco groups attached to the oxygen atom are listed in alphabetical order, followed by the word ether with spaces in between all three words. So if I focus my attention on the oxygen atom on one end of the oxygen, specifically on the left side is a one carbon substituent. Now recall that when it has only one carbon that's described as a methyl group. On the other hand, on the right side of the oxygen is a two carbon chain described as an ethel group. So in the case of the common name of this molecule, my oq groups should be listed in alphabetical order. Now, if the ocho groups happened to be identical, I would use the prefix dye to indicate that I have two of the same substituent. But in this case, because the E in ethel goes before the M in methyl, I would write Ethel first, right? So it's eo methyl, followed by the word ether with spaces in between all three words and there you have it. So the common name of this compound is eo methyl ether, which corresponds to options c in the multiple choice. And with that being said, thank you so very much for watching. And I hope you found this helpful.

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14. Compounds with Oxygen or Sulfur

Naming Ethers

GOB Chemistry

14. Compounds with Oxygen or Sulfur

Naming Ethers

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Problem 5a

Textbook Question

Write the common name for each of the following:
a. CH₃−CH₂−CH₂−O−CH₂−CH₂−CH₃

Verified step by step guidance

Step 1: Recognize the structure of the compound. The given molecule is an ether, as it contains an oxygen atom bonded to two alkyl groups.

Step 2: Identify the alkyl groups on either side of the oxygen atom. In this case, both groups are propyl groups (CH₃−CH₂−CH₂).

Step 3: Recall the naming convention for ethers. The common name for ethers is formed by listing the names of the alkyl groups in alphabetical order, followed by the word 'ether'.

Step 4: Since both alkyl groups are identical (propyl), the common name will use 'di-' to indicate two identical groups. Combine 'di-' with 'propyl' and add 'ether' to form the name.

Step 5: The common name for the compound is 'dipropyl ether'.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Alkyl Groups

Alkyl groups are hydrocarbon substituents derived from alkanes by removing one hydrogen atom. They are characterized by the general formula CnH2n+1 and can vary in length and branching. In the given compound, the presence of multiple alkyl chains indicates the structure's complexity and helps in identifying the common name.

Ether Functional Group

An ether is a class of organic compounds characterized by an oxygen atom connected to two alkyl or aryl groups. The general formula for ethers is R-O-R', where R and R' represent the hydrocarbon chains. The presence of the ether functional group in the compound influences its naming and properties, distinguishing it from other organic compounds.

IUPAC Naming Conventions

The International Union of Pure and Applied Chemistry (IUPAC) provides systematic rules for naming chemical compounds. These conventions help in identifying the structure and functional groups present in a molecule. Understanding IUPAC naming is essential for accurately determining the common name of the compound based on its structure, including the longest carbon chain and functional groups.

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