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Crash Course
E1 and E2 Reactions - Crash Course Organic Chemistry
We’ve spent the last few episodes talking about substitution reactions, but now it’s time to talk about a related type of reaction: elimination reactions! Elimination reactions are super important because they are the main way we can...
Professor Dave Explains
E2 on Cyclic Systems
Looking at how E2 reactions occur on cyclic substrates.
Professor Dave Explains
Practice Problem: Conversion of trans-2-butene to cis-2-butene
How can we go from one type of alkene to another? In three steps precisely? Use the reactions you know and figure it out! (Hint: Think about addition reactions, elimination reactions, and hydrogenations!)
Professor Dave Explains
Practice-Problem: Three-Reaction Pathway
We've got a starting material, and we are subjecting it to a series of three reaction conditions. What do we get? See if you can find out!
Professor Dave Explains
Practice Problem: Three-Step Synthesis
We've got an alkene starting material, and we are trying to get a specific alcohol. How can we do it in three steps? Give it a shot!
Khan Academy
Khan Academy: Sn1/sn2/e1/e2: Comparing E2 E1 Sn2 Sn1 Reactions
Looks at what type of reaction might occur if we have Bromocyclopentane dissolved in Dimethylformamide (DMF), with Methoxide ion in the solution. It could be an E2, E1, SN2, or SN1 reaction, and we look for clues to see which type is...
Khan Academy
Khan Academy: Elimination Reactions: Zaitsev's Rule
Explains Zaitsev's Rule for E2 and E1 elimination reactions. [13:29]
Khan Academy
Khan Academy: Sn1/sn2/e1/e2: E2 E1 Sn2 Sn1 Reactions Example 2
A second example that looks at what type of reaction we might have - E2, E1, SN2, or SN1 - given certain ingredients. [3:06]
Khan Academy
Khan Academy: E1 and E2 Reactions: E2 Elimination: Substituted Cyclohexanes
Understand E2 elimination reactions with substituted cyclohexanes. [12:55]