The IUPAC name for the following compound is:

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JEE Mains Previous Paper 1 (Held On: 12 Apr 2019 Shift 2)
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  1. 3-methyl-4-(3-methylprop-1-enyl)-1-heptyne
  2. 3, 5-dimethyl-4-propylhept-6-en-1-yne
  3. 3-methyl-4-(1-methylprop-2-ynyl)-1-heptene
  4. 3, 5-dimethyl -4-propylhept-1-en-6-yne

Answer (Detailed Solution Below)

Option 4 : 3, 5-dimethyl -4-propylhept-1-en-6-yne
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JEE Main 04 April 2024 Shift 1
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Detailed Solution

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Explanation:

The IUPAC name for the following compound is 3, 5-dimethyl-4-propylhept-1-en-6-yne.

     

In the case of the double bond and triple bond, the position is the same and the position of substituents is also the same, then the double bond is considered as senior so, the numbering starts from a double bond.

F1 NehaG Madhuri 19.01.2022 D1

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