Yay for "the dope allylic one" @ 8.20. Made my day. Thank you for doing the 1,2 and 1,4 with a 6 Carbon molecule. It clarified a lot. Serious lightbulb moment on a concept that had been eluding me.
I'm glad this made sense, Estela! And that's so funny (the first time I got that was my kindergarten teacher telling my Mom that I looked like Joey). Also make sure to check out my actual website (joechem.io) where the same videos + guided worksheets & solutions are linked! And they're all FREE. Also if you'd subscribe, I'd massively appreciate it (if you haven't already).
For the first example, couldn't you also have products where the hydrogen attacks C4 (counting from the right) since that also produces an allylic carbocation which would then have another set of two resonance structures?
Hi Sivasai! You're right--in that example, I didn't fully flush out all the products. I was more so explaining how you can get an array of products based on resonance. Make sure to also check out the follow up video to this one, which goes into thermodynamic and kinetic control for reactions ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RAHNso0gMNg.html
Hi Suvan! A Cl-Cl bond is actually pretty brittle. For example, in Free Radical Halogenation, Cl-Cl bonds can heterolytically cleave when subjected to sunlight (the energy in sunlight is enough to do the job).