The IUPAC nomenclature of the following compound

Task Id 1319 Daman (2)

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  1. 2-Chloro-3,4-dimethyl Penton-1-ol. 
  2. 4-Chloro-2,3-dimethyl Penton-1-ol 
  3. 4-Chloro-2,3,4-trimethylbutanol. 
  4. None of these

Answer (Detailed Solution Below)

Option 2 : 4-Chloro-2,3-dimethyl Penton-1-ol 
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CONCEPT:

IUPAC Nomenclature of Organic Compounds

  • The IUPAC nomenclature system is used to assign systematic names to organic compounds based on their structure, functional groups, and the number of carbon atoms in the longest chain.
  • The process involves identifying the longest continuous carbon chain that contains the functional group (in this case, the hydroxyl group, -OH), numbering the chain such that the functional group receives the lowest possible number, and then naming the substituents and their positions on the chain.
  • When multiple substituents are present, they are listed alphabetically in the name.

EXPLANATION:

Task Id 1319 Daman (3)

  • The given compound contains a hydroxyl group (-OH) and a chlorine atom (Cl), as well as two methyl groups attached to a pentane chain.
  • The longest chain in the compound contains 5 carbon atoms, so it is based on pentane.
  • Starting from the left, we give the hydroxyl group the lowest possible number (position 1), and the chlorine atom is attached to carbon 2. The methyl groups are located at carbon 3 and carbon 4.
  • The correct IUPAC name for this compound is 4-Chloro-3,4-dimethylpentan-1-ol, based on the positions of the substituents and the functional group.

Thus, the correct answer is: 4-Chloro-3,4-dimethylpentan-1-ol.

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