Consider the following structure of alkyl halide: Which of the following correct name of given structure according to IUPAC system is:
Correct answer: A. 1-Bromo-2-methylbutane
- A. 1-Bromo-2-methylbutane
- B. 4-Bromo-3-methylbutane
- C. 4-Bromo-2-methylbutane
- D. 1-Bromo-3-mehtylbutane
Explanation
When applying IUPAC rules:1. Longest continuous carbon chain: There is a four-carbon chain (butane).2. Numbering the chain: Start numbering from the end that gives the substituents the lowest numbers. In this case, numbering from the left gives the bromine the lowest number (1), and the methyl group is on the second carbon (2).So, according to the IUPAC rules, the correct name is 1-bromo-2-methylbutane. Therefore, option a is correct.
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About Alkyl Halides
Alkyl halides are named and related to their carbon-halogen structure, polarity and reactivity. The key reactions are nucleophilic substitution by SN1 and SN2 mechanisms and elimination by E1 and E2 mechanisms, including how substrate structure, nucleophile, base, solvent and temperature influence substitution versus elimination.
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