What is the IUPAC name of the following compound?(a) 1-Bromo-3-methylprop-2-ene(b) 3-Bromo-1-methylpropene(c) 1-Bromobut-2-ene(d) 4-Bromobut-2-eneThe question was posed to me in quiz.This intriguing question originated from Haloalkanes Nomenclature topic in division Haloalkanes and Haloarenes of Chemistry – Class 12

What is the IUPAC name of the following compound?(a) 1-Bromo-3-methylp

1.	What is the IUPAC name of the following compound?(a) 1-Bromo-3-methylprop-2-ene(b) 3-Bromo-1-methylpropene(c) 1-Bromobut-2-ene(d) 4-Bromobut-2-eneThe question was posed to me in quiz.This intriguing question originated from Haloalkanes Nomenclature topic in division Haloalkanes and Haloarenes of Chemistry – Class 12
Answer» Right choice is (c) 1-Bromobut-2-ene Easiest explanation: The LONGEST chain of C atoms is 4 (butene) and the numbering should begin from the Br side to satisfy the lowest SET of LOCANTS RULE. So, Br is at C-1 and DOUBLE bond is at C-2.

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