Question

A student gave a molecule the following name:                               

3-methyl-4-isopropylpentane However, the teacher pointed out that, although the molecule could be correctly drawn from this name, the name violates the International Union of Pure and Applied Chemistry (IUPAC) rules. What is the correct (

A.)	4-Isopropyl-3-methylpentane
B.)	2-Isopropyl-3-methylpentane
C.)	1,1,2,3-Tetramethylpentane
D.)	2,3,4-Trimethylhexane
E.)	3,4-Dimethylheptane

Answer 1

3 - Methyl-4- isopropyl pentane is Cutz - CH₂ - CH₂ - CH-CH-CH3 H ₂ C - CH - CH₂ But if we consider longest possible chain here and also give lowest mo. to substituent, Chain would be 6 - Ch - ch - CH - CH2 IUPAC Name in 2,3,4-trimethylhexane cha CH2