KCET2016ChemistryGeneral Organic Chemistry
IUPAC name of the compound
Options
- A( 1 )-Bromo but-2-ene
- BBromo butene
- C2-Bromo-2-butene
- D1-Bromo but-3-ene
Correct answer
A. ( 1 )-Bromo but-2-ene
Step-by-step solution
The IUPAC name of the given compounds, ( CH ₃- CH = 3 CH - CH ₂²- Br ) is ( 1 )-bromobut-2-ene. If the numbering of the carbon atoms starts from bromide attached carbon, that is ( CH ₃- 2 CH = 3 CH - 4 CH ₂- Br ), the numbering will be incorrect order of numbering because, functional groups are not getting least number.