In an S_N2 reaction, what is the stereochemical outcome when the substrate is a

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Question: In an S_N2 reaction, what is the stereochemical outcome when the substrate is a chiral center?

Options:

Correct Answer: Inversion of configuration

Solution:

S_N2 reactions result in inversion of configuration at the chiral center due to the backside attack of the nucleophile.

In an S_N2 reaction, what is the stereochemical outcome when the substrate is a chiral center?

In an S_N2 reaction, what is the stereochemical outcome when the substrate is a chiral center?

Step 1: Understand that an S_N2 reaction involves a nucleophile attacking a substrate.
Step 2: Identify that the substrate has a chiral center, which means it has a specific 3D arrangement of atoms.
Step 3: Recognize that the nucleophile attacks the substrate from the opposite side of the leaving group.
Step 4: Realize that this backside attack causes the configuration at the chiral center to flip.
Step 5: Conclude that the result of this reaction is an inversion of configuration at the chiral center.

S_N2 Reaction Mechanism – S_N2 reactions involve a nucleophile attacking the substrate from the opposite side of the leaving group, leading to inversion of configuration at a chiral center.
Chirality and Stereochemistry – Understanding how chirality affects the outcome of reactions, particularly how the stereochemical configuration changes during nucleophilic substitution.