What is the common name of the alkyl substituent present on C-2 of menthol shown below?
A)isopropyl
B)isobutyl
C)sec-butyl
D)tert-butyl
E)iso-pentyl

Question

What is the common name of the alkyl substituent present on C-2 of menthol shown below? 
A)isopropyl 
B)isobutyl 
C)sec-butyl 
D)tert-butyl 
E)iso-pentyl

Quizplus · Accepted Answer

The alkyl substituent on C-2 of menthol is branched and has a total of 3 carbon atoms. Based on the IUPAC nomenclature rules, it is named as isopropyl, which means it is a branch of propane (3 carbon chain) and is attached to the parent carbon (C-2) via its second carbon atom (i.e., CH(CH3)2). Therefore, the correct choice is A) isopropyl.

What Is the Common Name of the Alkyl Substituent Present