Question

How many tertiary carbons are there in this molecule? 2,2,3,3-tetramethylbutane

Answer 1

Answer 2

Answer:

Zero (0) tertiary carbons in 2,2,3,3-tetramethylbutane.

Structure Analysis:

1. Structure:

   (Simplified: Central C-C bond with 4 methyl groups).

2. Carbon Types:

• Primary (1°): 6 (terminal −CH₃ groups).

• Quaternary (4°): 2 (central carbons bonded to 4 others).

• All carbons are either:

• No tertiary (3°) carbons (which require bonding to 3 other carbons).

• 
  

Key Point: The name "tetramethylbutane" implies a fully substituted central chain with no 3° carbons