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Multiple Choice
Provide the full name for the following molecule, taking stereochemistry into account.
A
(S)-3-hydroxy-2,2,4,5-tetramethylhexanol
B
(S)-2,2,4,5-tetramethyl-3-hexanol
C
(R)-2,2,4,5-tetramethyl-3-hexanol
D
(R)-4-hydroxy-2,3,5,5-tetramethylhexanol
Verified step by step guidance
1
Identify the longest carbon chain in the molecule, which serves as the parent chain. In this case, the longest chain is a hexane (6 carbon atoms).
Number the carbon atoms in the parent chain starting from the end nearest to the substituent group, which is the hydroxyl group (-OH) in this case. This ensures the lowest possible number for the hydroxyl group.
Identify and name the substituents attached to the parent chain. Here, there are methyl groups attached at positions 2, 2, 4, and 5.
Determine the stereochemistry of the chiral center. Assign priorities to the substituents attached to the chiral center based on atomic number, and use the Cahn-Ingold-Prelog priority rules to determine the configuration (R or S).
Combine the information to write the full IUPAC name, including the stereochemistry. The molecule is named as (R)-2,2,4,5-tetramethyl-3-hexanol, considering the stereochemistry and substituents.