Organic Chemistry Basics - Result Question 138
####6. The absolute configuration of
(2016 Main)
(a) $(2 S, 3 R)$
(b) $(2 S, 3 S)$
(c) $(2 R, 3 R)$
(d) $(2 R, 3 S)$
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Answer:
Correct Answer: 6. (c)
Solution:
6.
For $C-2$, order of priority of substituents is $OH>CH(Cl)\left(CH _3\right)>COOH$
For $C-3$, order of priority of substituents is $Cl>CH(OH) COOH>CH _3$
Hence, according to CIP rules,