CBSE Class 12 · 2008 · Foreign; also All India 2010 · Haloalkanes and HaloarenesVery Short Answer

Give the IUPAC name of the following compound (structure shown in the figure).

Structure Structure for IUPAC naming (4-bromo-3-methylpent-2-ene) — Structure for IUPAC naming (4-bromo-3-methylpent-2-ene)

Answer: 4-Bromo-3-methylpent-2-ene.

Solution

The structure is CH

_{3}

–CH=C(CH

_{3}

)–CHBr–CH

_{3}

.
Longest chain through the double bond: pent-2-ene; substituents at C-3 (methyl) and C-4 (bromo), numbering to give the double bond the lowest locant.

4-Bromo-3-methylpent-2-ene

CBSE Class 12 Board · 2008 · Foreign; also All India 2010 · Subjective

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