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.
![**Chemical Structure Representation and Nomenclature**
The image presents a structural diagram of a cyclohexane derivative. In this diagram, there are:
- Two substituents on the cyclohexane ring: a fluorine atom (indicated by "F") and a bromine atom (indicated by "Br").
- An alkyl group, specifically an ethyl group, is attached to the cyclohexane ring.
**Explanation:**
- The cyclohexane ring is a six-membered carbon ring, represented by a hexagonal shape.
- The fluorine atom is attached to one of the carbon atoms in the ring.
- The bromine atom is attached to a different carbon atom in the ring, relative to the fluorine.
- The ethyl group extends from the ring, denoted by a straight line branching off the structure, representing two carbon atoms (–CH₂–CH₃).
**The IUPAC Name:**
The IUPAC name for this compound is needed; however, the image stops at "The IUPAC name is:" without completing it.
To determine the IUPAC name:
1. Assign priority to the substituents based on the Cahn-Ingold-Prelog system: Br is a higher priority than F.
2. Number the ring to give the substituents the lowest possible numbers.
3. Name the compound by listing the substituents in alphabetical order, using their position numbers on the cyclohexane ring:
- 1-Bromo-4-fluoro-3-ethylcyclohexane
This name reflects the positions and identities of the substituents on the cyclohexane ring.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc6fa773a-0311-4093-92fe-8f7b7bc835d6%2Fbd7bdde7-abba-4285-aa70-e245fb141876%2Ffidelqb_processed.png&w=3840&q=75)
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