Draw the skeletal (line-bond) structure of N-cyclohexyl-3-hexanamine.

The Correct Answer and Explanation is:

Skeletal (Line-Bond) Structure of N-cyclohexyl-3-hexanamine

Here’s the skeletal structure (described in text since drawing is not possible directly in text):

           NH
            |
CH3-CH2-CH-CH2-CH2-CH3
            |
        Cyclohexyl ring

Or more precisely, in skeletal (line-bond) format:

        ______
       /      \
      |        |
      |        |
       \______/
           |
CH3-CH2-CH-CH2-CH2-CH3
           |
           NH

Note: The nitrogen (N) is bonded to the cyclohexyl ring and to the third carbon of a hexane chain. That makes it N-cyclohexyl-3-hexanamine.

Explanation

N-cyclohexyl-3-hexanamine is a substituted amine, where a cyclohexyl group is bonded to the nitrogen atom (N) of a 3-hexanamine backbone. To understand its structure, we must first break down the name according to IUPAC nomenclature.

Parent Chain: 3-hexanamine
- “Hexanamine” refers to a six-carbon linear alkane chain (hexane) with an amino group (-NH₂).
- The “3-” indicates that the amine group is on the third carbon of the chain.
- The structure of 3-hexanamine:
  CH₃–CH₂–CH(NH₂)–CH₂–CH₂–CH₃
N-cyclohexyl Substitution:
- The prefix “N-cyclohexyl” means the hydrogen of the amino group is replaced by a cyclohexyl group (a six-membered carbon ring).
- Instead of a primary amine (-NH₂), the molecule becomes a secondary amine, where the nitrogen is bonded to:
  - The 3rd carbon of hexane
  - A cyclohexyl ring
Skeletal Structure:
- In line-bond (skeletal) structures, carbon atoms are implied at the ends and intersections of lines.
- Hydrogen atoms attached to carbons are usually omitted.
- Functional groups (like NH) are often shown explicitly when relevant.

So, the structure features:

A straight six-carbon chain
An NH bonded to carbon 3
The N also bonded to a cyclohexyl ring

This skeletal format helps chemists quickly visualize molecular shape and functional groups, crucial for understanding reactivity and physical properties.

Skeletal (Line-Bond) Structure of N-cyclohexyl-3-hexanamine

Explanation

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