Electrophilic Aromatic Substitution: Introduction
The Six Key Electrophilic Aromatic Substitution Reactions In electrophilic aromatic substitution a C-H bond is broken and a new C-E bond (E being an electrophilic
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More On 1,2 and 1,4 Additions To Dienes
Two More Diene Reactions: Free-Radical Addition of HBr to Dienes, and Addition of Br2 to Dienes In an earlier post we covered 1,2 and 1,4
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Free Radical Reactions – Chlorination of Methane Alkanes are pretty boring, chemically speaking. They don’t tend to undergo many reactions. However, when they are treated
Read moreMonochlorination Products Of Propane, Pentane, And Other Alkanes
How Many Monochlorination Isomers Are Formed From Free-Radical Chlorination Of Alkanes? Last time we covered a comparatively simple reaction: free-radical chlorination of methane to (CH4)
Read moreSelectivity In Free Radical Reactions
Free Radical Chlorination: Selectivity This post is all about the selectivity of free-radical halogenation: what does “selectivity” mean, anyway? And how do we calculate it? It’s often
Read moreHalogenation At Tiffany’s
Thinking Through The Selectivity of Bromination vs Chlorination: An Intuitive Analogy As we discussed in the last post on radicals, bromine radicals are considerably more
Read moreAlkyne Halogenation: Bromination, Chlorination, and Iodination of Alkynes
Halogenation of Alkynes With Cl2, Br2, and I2 Like alkenes, alkynes can undergo halogenation with Cl2, Br2, or I2. When 1 equivalent of the halogen
Read moreHalogenation of Alkenes and Halohydrin Formation
Bromination, Chlorination, and Halohydrin Formation from Alkenes Alkenes undergo halogenation when treated with Cl2, Br2 and (less commonly) I2 to give vicinal dihalides These reactions
Read moreAlkene Addition Pattern #2: The “Three-Membered Ring” Pathway
The “Three-Membered Ring” Pathway In Alkene Mechanisms: Halogenation, Oxymercuration, Halohydrin Formation, and Acidic Epoxide Opening In the last post we walked through a proposal for
Read moreIntroduction to Free Radical Substitution Reactions
The four posts on acid-base, substitution, addition, and elimination covered the 4 main reactions in organic chemistry I. In this second series of posts we go beyond these to introduce a
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