What is an SN2 reaction?

1 Answer
Shulgin
Apr 19, 2018

A common reaction mechanisme in organic chemistry

Explanation:

An #S_n2# reaction, S-ubstitution n-ucleophilic bi-molecular, is a reaction where the bond in a substrate is broken and a new formed simultaneously (in only one step). A #S_n2# reaction could look like this:
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This all happens in one step. The [ ] is an intermediate.
Note a change in stereochemistry, from an S-configuration carbon to an R-configuration carbon

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