Common Elementary Steps

One of my elementary school teachers taught me that a good scientist is able to find patterns. You might be wondering what does that have to do with mechanisms? Turns out all mechanisms are a combination of the following five mechanistic patterns:

1.    Nucleophilic attack

2.    Loss of a leaving group

3.    Proton Transfer

4.    Rearrangement

5.    Resonance

Learning these five patterns is much more manageable than trying to memorize every single reaction mechanism individually. In studying organic chemistry, you are actually learning to apply your chemical knowledge to decide what sequence of electron movements (pattern) will take place under the given conditions. Review and practice applying these five concepts using the Mechanisms content listed below


Nucleophilic Attack

·     Intro 9

·     Intro 7

Loss of a Leaving Group

·     Intro 3

Proton Transfer

·     Intro 6


·     Structure 20

·     Structure 21

·     Structure 23

·     Structure 25


·     Intro 4


Nucleophilic Attack

·     Intro 1

·     Intro 2

Loss of a Leaving Group

·     Intro 5

Proton Transfer

·     Acid Base 2


·     Structure 22

·     Structure 24


·     Structure 1

·     Structure 4

1st Semester Courses
2nd Semester Courses