Reactions Practice Questions

This is a collection of organic chemistry practice questions covering various topics in a typical college organic chemistry course.

Pinacol Rearrangement

Pinacol rearrangement is a specific elimination reaction that vicinal diols go through in acidic conditions. Unlike a typical E1 reaction that gives you an alkene, the pinacol rearrangement gives you an aldehyde or a ketone instead. Here’s the general scheme for the reaction: As you can see, the pinacol rearrangement also causes the carbon backbone …

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How to Convert a Trans Alkene into a Cis Alkene?

Suppose you need to accomplish the following transformation: This is not the most trivial of questions as there are no single-step reactions that can realistically accomplish this transformation. Of course, there are some isomerization techniques out there, but they all favor the more thermodynamically stable molecule. And since the more thermodynamically stable double bond is …

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