Are these molecules conjugated?
If Org 2 has an overall theme, it’s “resonance”. Today’s post has a very simple message. Atoms with lone pairs, π bonds, radicals, and carbocations can
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Bond Dissociation Energies = Homolytic Cleavage
Here’s a point which causes a lot of confusion. Look at these two reactions. What do you think is the stronger bond, O-H or C-H?
Read more3 Factors That Stabilize Free Radicals
In the last post we introduced free radicals – neutral, electron-deficient chemical species with a partially filled orbital – and learned that they are highly
Read moreFree Radical Initiation: Why Is “Light” Or “Heat” Required?
If you come across just a few free-radical reactions, you should notice a familiar pattern. Every free-radical reaction that you’ll encounter is accompanied by either
Read moreInitiation, Propagation, Termination
Waaay back when we started to go through free radical substitution reactions, you might recall that we looked a reaction like this one: Now that
Read moreIsomers From Free Radical Reactions
Last time we covered a comparatively simple reaction: free-radical chlorination of methane to (CH4) to give chloromethane (CH3Cl) and saw that the reaction proceeds through
Read moreSelectivity In Free Radical Reactions
In the last post we showed some examples of how different isomers might be formed in free-radical halogenation of alkanes. And I left off with
Read moreAllylic Bromination
In previous posts on radicals, we’ve seen how bromine can selectively react with tertiary C-H bonds (bond strength 93 kcal/mol) over secondary (96 kcal/mol) and
Read moreIn Summary: Free Radicals
So what have we learned about free radicals in this series? What Are Free Radicals? Free radicals are chemical species that contain a singly occupied orbital.
Read moreReagent Friday: NBS (N-Bromo Succinimide)
In a blatant plug for the Reagent Guide, each Friday I profile a different reagent that is commonly encountered in Org 1/ Org 2. If you’ve
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