Give the R/S configuration of this alanine. Options: A . &nbspR B . &nbspS C . &nbspD D . &nbspL

Give the R/S configuration of this alanine.

Question

Give the R/S configuration of this alanine.

Options:

A . R

B . S

C . D

D . L

Answer: Option B
:
B
First we manipulate the molecule so that the hydrogen atom goes into
the plane. The rest is easy! Nitrogen gets the highest priority - 1. The
carbon of COOH group takes precedence over the carbon of methyl group!

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