Alkene additions haven’t been covered here much yet, but I made this a few weeks ago and thought I may as well put it up. Most of the important reactions are on it – one exception might be the Simmons-Smith cyclopropanation, since I ran out of room. Additions to alkenes: PDF
As always, any suggestions for improvement (or other summary sheets) would be appreciated.
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{ 9 comments… read them below or add one }
A summary sheet for the conditions favoring substitution vs. elimination would be helpful to many as they work through Org I and II.
I’ve prepared one, haven’t put it up yet though. I’d be happy to email you a copy if you like.
Brendan,
I feel compelled to point out the obvious about such summary sheets. It’s imperative that you understand the reason why a particular condition tends to yield one mode of reaction over the other.
One method that I’ve found helpful is to take each factor (e.g., carbocation stability) and write a short paragraph explaining how it is relevant to the reaction of interest. You might even want to make a couple of diagrams or drawings to aid in explaining the concept. I found that when I do things like this, I tend to have less difficulties with the subject.
Hope this helps.
A very nice summary.
I think you might be on the horns of a dilemma, trying to balance adding more and more (advanced)reactions, but still focusing on basic principles.
Given that, how about the thio-ene reaction? It’s a very trendy reaction right now, often mentioned as an alternate “click” reaction. And it can be used for polymerizations.
Thanks for the kind words and suggestion, John. I don’t think I’ll cover anything that’s outside a typical sophomore textbook for quite some time yet…
Sorry, it’s been so long that I don’t even know what’s in the sophomore books anymore without looking. To me, it’s a simple enough (but useful) enough reaction that I don’t look on it as advanced at all.
Thanks so much! Your notes are really helpful.
Thanks! glad you find them useful
Hi,
I didn’t see a summary sheet for substitution vs. elimination reactions. it would be helpful since that’s what i’m learning right now.