Types of Organic Reactions

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Thomas Hui 2J
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Joined: Wed Sep 21, 2016 2:55 pm

Types of Organic Reactions

Postby Thomas Hui 2J » Thu Mar 02, 2017 10:57 am

In Quiz 3 Preparation #5, the question asks "What type of reaction is shown above?"

How many types of organic reactions are there? And how do we identify them?

Follow-up question:

Same Question, later the question asks "What is the rate limiting step?"

How do you know what the rate limiting step is from simply looking at the problem?

Posts: 10
Joined: Wed Sep 21, 2016 2:56 pm

Re: Types of Organic Reactions

Postby breinhardt3G » Thu Mar 02, 2017 11:55 am

In class, we went over electrophilic addition reactions and nucleophilic substitution reactions. There are plenty of different types of reaction mechanisms, but these are the ones we went over and I'm pretty sure we just have to worry about these for the quiz.
The reaction in question 5 is an electrophilic addition reaction since it involves the addition of an electrophile (H+).
To determine the slow step, you must think logically about what part of this mechanism would require the most energy and thus which one would take the most time. Since breaking the double bond in cholesterol would require a lot of energy step 1 (the first transition step) would have the highest energy barrier and would therefore be the slow step.

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