Loading...
Please wait, while we are loading the content...
Similar Documents
Diels-Alder Reaction
| Content Provider | AK Lectures |
|---|---|
| Description | One very important and prominent reaction that deals with conjugated systems was discovered in 1928 by Otto Diels and Kurt Alder and became known as the Diels-Alder reaction. This reaction combines a conjugated diene with an alkene known as the dienophile. These two reactants react with one another via a one-step concerted mechanism - three pi-bonds are broken while two sigma bonds and one pi bond is formed and this takes place at the same time (hence the word concerted). The cyclohexene product is more stable than the two reactants and therefore the reaction is exothermic and it releases energy. However, notice that the entropy actually decreases since we are forming a single product from two reactants. Therefore at high temperatures we might expect that the entropy term would overpower the enthalpy change and the reaction would become non-spontaneous. |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Organic Chemistry reaction decreases diene alkene deals pi-bonds time mechanism word |
| Content Type | Video |
| Educational Role | Teacher Student |
| Educational Use | Self Learning Lecture Reading |
| Resource Type | Video Lecture |
| Education Level | Under Graduate |
| Subject | Organic chemistry |
