Leah4sci.com/A... presents: Cyclopropanation of Alkenes: Carbene via Haloform and Simmons-Smith Reaction and Mechanism
Need help with Orgo? Download my free guide ’10 Secrets to Acing Organic Chemistry’ HERE: leah4sci.com/o...
In this video, you’ll learn about the two common cyclopropanation reactions, in which an alkene reacts to form a cyclopropane in place of its pi bond.
In the first reaction, a haloform is used to form an unstable and very reactive carbene intermediate.
In the second reaction, known as the Simmons-Smith reaction, a zinc-copper complex is used to form a more stable carbenoid intermediate.
You’ll learn to draw the concerted reaction mechanism for both reactions and be able to show proper stereochemistry in drawing your product molecule.
Links & Resources Mentioned In This Video:
Formal Charge Formula and Shortcut leah4sci.com/f...
Hybridization, Geometry and Bond Angles leah4sci.com/h...
Alkene Epoxidation leah4sci.com/a...
E1 and E2 Beta Elimination leah4sci.com/s...
In this video:
[0:21] Definition of Cyclopropanation
[1:04] Definition of Carbene
[2:38] Overview of Two Common Cyclopropanation Reactions
[3:40] Using a Haloform to Form a Carbene
[5:57] Mechanism for Reaction of Carbene with Alkene
[7:27] Simmons-Smith Reaction to Form a Carbenoid
[8:21] Mechanism for Simmons-Smith Reaction
Catch the entire Alkene Reactions Video Series along with the Alkene Reactions Practice Quiz and Cheat Sheet on my website at leah4sci.com/A...
Follow along with your semester by using my Orgo Syllabus Companion: leah4sci.com/s...
For more in-depth review including practice problems and explanations, come join my online membership site the organic chemistry study hall: leah4sci.com/join
For private online tutoring visit my website: leah4sci.com/o...
For questions and comments, find me on social media here:
Facebook: / leah4sci
Twitter: / leah4sci
Instagram: / leah4sci
Pinterest: / leah4sci