IUPAC name of (CH3)3CCH2Br is
- A. 1-bromopentane
- B. 1-bromo-2,2,2-trimethylethane
- C. 1-bromo-2,2-dimethylpropane
- D. 2-bromopentane
Explanation
The longest chain containing the bromine has three carbons, giving propane, with the bromine on carbon 1 and two methyl groups on carbon 2. Counting all five carbons as a straight chain gives the pentane answers, which ignores the branching. Numbering must start from the end nearer the substituent, which puts the bromine at position 1.
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