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Ch.23 - Organic and Biological Chemistry
Chapter 23, Problem 69

Benzyne, C6H4, is a highly energetic and reactive molecule. The carbon atoms are connected in a six-membered ring. Provide a line drawing for benzyne. What functional group is present?

Verified step by step guidance
1
Step 1: Begin by drawing a hexagonal ring to represent the six carbon atoms in benzyne, similar to the structure of benzene.
Step 2: Add alternating double bonds around the hexagonal ring to depict the aromatic nature of the molecule, as seen in benzene.
Step 3: Identify the unique feature of benzyne: a triple bond between two adjacent carbon atoms in the ring, replacing one of the double bonds.
Step 4: Add hydrogen atoms to each carbon atom to ensure each carbon has four bonds in total. In benzyne, two carbon atoms will each have one hydrogen due to the triple bond.
Step 5: Recognize that the functional group present in benzyne is an alkyne, characterized by the carbon-carbon triple bond within the ring.