Question

CH3-CH-CH-CH-CH2-CH3 ║ ║ ║ CH3 Br CH3Название

Answer 1

Ответ:

Это гексен - 2.

Answer 2

The given molecule can be named as 3-ethyl-2,4-dimethylhexane. Here's how the name is derived:

1. Identify the longest continuous chain of carbon atoms in the structure, which in this case is six carbon atoms (hexane).

2. Number the carbon atoms in the chain from left to right or right to left, whichever gives the substituents (the groups attached to the main chain) the lowest possible numbers. In this case, numbering from left to right is more favorable because it gives the substituents the lowest numbers.

3. Identify and name the substituents. In this molecule, there are three substituents:

   • A methyl group (CH3) attached to the second carbon atom.
   • A methyl group (CH3) attached to the fourth carbon atom.
   • An ethyl group (CH2CH3) attached to the third carbon atom.

4. Combine the substituent names with the carbon atom numbers they are attached to:

   • 2-methyl
   • 3-ethyl
   • 4-methyl

5. Write the substituent names in alphabetical order:

   • 2-methyl, 3-ethyl, 4-methyl

6. Combine the substituent names with the main chain name (hexane) and separate them with hyphens. Also, indicate the positions of the substituents in the chain:

   • 3-ethyl-2,4-dimethylhexane

So, the complete IUPAC name of the molecule is "3-ethyl-2,4-dimethylhexane."