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What is an acid catalyzed hydro-alkoxy addition?

Answer 1

Skylar Alexander

An acid catalyzed hydro-alkoxy addition is the addition of an alcohol to a C=C double bond to form an ether.

An example is the addition of methanol to 2-methylpropene to form t-butyl methyl ether.

This is an electrophilic addition reaction.

In Step 1, a hydronium or oxonium ion is attacked by the π bond.

In Step 2, the alcohol attacks the carbocation and forms an oxonium ion.

In Step 3, the alcohol deprotonates the oxonium ion to form the ether.

Here’s a video on the addition of alcohols to alkenes.

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Answer 2

Brooklyn Barber

An acid-catalyzed hydro-alkoxy addition is a chemical reaction where an alcohol molecule adds across the double bond of an alkene in the presence of an acid catalyst. This reaction results in the formation of an alkoxide intermediate, followed by protonation to yield the corresponding hydroxyalkyl product.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.