Isopropyl is named systematically as 1-methylethyl. What is the IUPAC name of CH3-CH2-CH2-CH(CH(CH3)2)-CH2-CH2-CH2-CH3, using that prefix?

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Isopropyl is named systematically as 1-methylethyl. What is the IUPAC name of $CH X_{3} - CH X_{2} - CH X_{2} - CH (CH (CH X_{3}) X_{2}) - CH X_{2} - CH X_{2} - CH X_{2} - CH X_{3}$ , using that prefix?

A4-(1-methylethyl)octane
B4-(2-methylethyl)octane
C5-(1-methylethyl)octane
D4-(1,1-dimethylethyl)octane

Answer: A

The longest chain runs through the propyl and butyl portions and has eight carbons (octane); the isopropyl group is a substituent. Numbering from the propyl end places the substituent at C4, while numbering from the butyl end places it at C5, so the lower locant 4 is chosen. The prefix is (1-methylethyl), so the name is 4-(1-methylethyl)octane.

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Isopropyl is named systematically as 1-methylethyl. What is the IUPAC name of CHX3​−CHX2​−CHX2​−CH(CH(CHX3​)X2​)−CHX2​−CHX2​−CHX2​−CHX3​, using that prefix?

Answer: A

More questions on Nomenclature of alkanes, alkenes, alkynes and cyclic compounds

Isopropyl is named systematically as 1-methylethyl. What is the IUPAC name of $CH X_{3} - CH X_{2} - CH X_{2} - CH (CH (CH X_{3}) X_{2}) - CH X_{2} - CH X_{2} - CH X_{2} - CH X_{3}$ , using that prefix?