Question 9 Name the compound shown below. 4-ethyl-3-methyl-5-nonyne 4-ethyl-3-methyl-5-octyne 6-isobutyl-4-octyne 6-ethyl-7-methyl-4-octyne O 6-ethyl-7-methyl-4-nonyne O 3-isobutyl-4-octyne
Classes Of Functional Groups
Organic Chemistry deals mostly with carbon and hydrogens, also called hydrocarbons, but those groups which replace hydrogen and bonds with carbon to give a characteristic nature, unique of their own, to the hydrocarbon they are attached to, are called functional groups. All the compounds belonging to a functional group undergo reactions in a similar pattern and are known to have similar physical and chemical properties.
Characteristics Of Functional Groups
In organic chemistry, we encounter a number of special substituent groups which are attached to the hydrocarbon backbone. These groups impart certain characteristics to the molecule of which it is a part of and thus, become the highlight of that particular molecule.
IUPAC Nomenclature
In Chemistry, IUPAC stands for International Union of Pure and Applied Chemistry which suggested a systematic naming approach for the organic and inorganic compounds, as in the beginning stage of nomenclature one single chemical compound was named in many ways by which lead to confusion. The need for this approach aroused as the number of chemical compounds newly discovered were increasing (approximately 32 million compounds) and the basic concept of nomenclature i.e. the trivial nomenclature and the derived system of nomenclature failed to overcome the challenge. It is an important task to name a chemical compound systematically and unambiguously which reduces lots of confusion about the newly reported compounds.
### Options:
- 4-ethyl-3-methyl-5-nonyne
- 4-ethyl-3-methyl-5-octyne
- 6-isobutyl-4-octyne
- 6-ethyl-7-methyl-4-octyne
- 6-ethyl-7-methyl-4-nonyne
- 3-isobutyl-4-octyne
### Explanation of the Structure:
The given image shows a chemical structure that consists of carbon and hydrogen atoms arranged in a specific pattern. The structure includes a triple bond between the fourth and fifth carbon atoms in the chain. There are also various substituents (side chains or groups) attached to the main carbon chain.
For educational purposes, it is important to determine the correct IUPAC (International Union of Pure and Applied Chemistry) name for this compound by considering the longest carbon chain, the positions of the substituents, and the triple bonds.
### Steps to Determine the Correct Name:
1. Identify the longest carbon chain that includes the triple bond.
2. Number the carbon chain in such a way that the triple bond gets the lowest number possible.
3. Identify and number the substituents according to their positions on the main chain.
4. Combine the elements of the name according to IUPAC rules.
Based on these steps, students should be able to deduce the correct name from the given options.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd4844e47-8bac-47db-9d5f-a634c5eb0fa3%2Fd7a1b89f-2eda-4c95-895b-7df0d34f16a7%2Fw6bd9d_processed.jpeg&w=3840&q=75)
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