The carbocation can either come from protonation of an alkene (path 1) or from вЂњionizationвЂќ (that is, loss of a good leaving group) of an alkyl halide or similar starting material. There are really only two.ДЇirst, weвЂ™ve seen that alcohols will react with carbocations to give ethers. Reviewing Two Earlier Reactions Of Alcohols: Addition To Carbocations And To Halonium IonsД«efore going there, however, letвЂ™s just review the reactions of alcohols weвЂ™ve already seen that arenвЂ™t explicitly acid base reactions. The Conjugate Base of An Alcohol Is A Better NucleophileДЎ.The Conjugate Acid of An Alcohol Is A Better Electrophile.Neutral Alcohols Only Tend To Undergo Reactions With Very Reactive Electrophiles.Reviewing Two Earlier Reactions of Alcohols.

As weвЂ™ll see, these reactions really вЂњset upвЂќ a lot of the reactions weвЂ™ll later see in this section. WeвЂ™re going to begin in this post by discussing acid base reactions of alcohols. Now that weвЂ™ve dipped our toe in the a little bit, weвЂ™re going to start looking at the key reactions of alcohols. We said that alcohols tend to have high boiling points due to hydrogen bonding, and that we commonly divide alcohols into the categories вЂњprimaryвЂќ, вЂњsecondaryвЂќ, and вЂњtertiaryвЂќ (with a nod to the unique, вЂњmethanolвЂќ) according to how many carbons are attached to the C bearing the hydroxyl group. In the last post weВ exploredВ some of the properties and nomenclature of alcohols. Alcohols: The Conjugate Acid Is A Better Leaving Group, and The Conjugate Base Is A Better Nucleophile

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