What is the IUPAC name for the compound CH3-C(CH3)=CH-CH3?
Answer and explanation
Correct answer: D. 2-methylbut-2-ene pathway
Numbering the 4-carbon alkene chain from the end closer to the branch gives the double bond starting at C2 and a methyl group at C2, giving 2-methylbut-2-ene (numbering from the other side would give 3-methylbut-2-ene, with higher substituent number).
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