객관식
What is the absolute configuration of the following stereocenters?
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5. Chirality
R and S Configuration
Multiple Choice
Provide the complete, IUPAC name for the following molecule:
A
(S)-5-bromo-2,2-dimethylhexane
B
(R)-5-bromo-2,2-dimethylhexane
C
(S)-2-bromo-5,5-dimethylhexane
D
(R)-2-bromo-5,5-dimethylhexane
검증된 단계별 안내1
Identify the longest carbon chain in the molecule. In this case, the longest chain contains six carbon atoms, which makes it a hexane.
Determine the substituents attached to the main chain. Here, we have a bromine atom attached to the second carbon and two methyl groups attached to the fifth carbon.
Assign the correct locants to the substituents. The bromine is on the second carbon, and the two methyl groups are on the fifth carbon.
Consider the stereochemistry of the molecule. The bromine is attached to the second carbon with a wedge bond, indicating a specific stereochemistry. Assign the correct configuration (R or S) based on the Cahn-Ingold-Prelog priority rules.
Combine all the information to write the complete IUPAC name, including the stereochemistry, substituents, and the main chain name.
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