- 188
- 311 106
Dr. Richard Pennington
Приєднався 19 вер 2012
Welcome to Dr. Richard Pennington's Chemistry tutorial videos page! Here you will find videos covering a huge variety of topics across all of freshman chemistry and organic chemistry.
Відео
cyclic and acyclic forms of carbohydrates
Переглядів 4227 років тому
cyclic and acyclic forms of carbohydrates
Functional Groups and Where to Find Them
Переглядів 7029 років тому
Functional Groups and Where to Find Them
This video is false. the cyclopentadiene is NOT anti aromatic, in fact it’s nonaromatic because it lacks a ring of conjugation due to the sp3 hybridization on carbon 5.
Thank u so much sir.
Love your vids! You are helping me through orgo chem
So helpful!!
Thank you
Wonderful, thank you so much!
You are so welcome - glad it was able to be of help! Make sure to subscribe 👍😅
It solved all my questions thank you so much❤❤❤❤❤
I have a question of DBN is bulky won't it take H from 1° a H
Nice❤
Finally understand
I wasted 30 seconds of my life on ads
i love u man
Wait but what ab mesocompounds? Does this not affect the definition?
This was so helpful, thank you so much!
Thank you so much! I was struggling with my prof's explanation but this makes perfect sense.
Thank you for that quick review.
😂
Thank you
thank you sooo much for this video!!!!
This was really helpful. Thank you!
I’m actually confused as to why the first one is E2 when we have a primary alkyl halide it will be SN2 Secondary Sn1 (weak nuc + polar protic … has a H to donate) or a SN2 reaction ( strong nuc + polar aprotic ( no H to donate)
And tertiary is Sn1
Did you ever figure it out i have the same question
An Sn2 reaction with a sterically hindered tertiary carbon would probably take a million years , so yes it's possible theoretically speaking if you plan on waiting.
Thank you so much. This is the BEST video that I have watched on this topic. Truly thank you so much
That’s awesome Ruth, glad that it was helpful for you!
@@dr.richardpennington724 Please post more videos! Your teaching style is amazing!
@@ruththomas5667 what sorts of things would you like to know about? My organic I and II channels have all sorts of videos available. Is there something not there that you’d like to see?
Try not to make meth bro
This is the first explanation that truly made sense! Thank you, I wish you were my professor.
Thanks Dylan, glad it was helpful; this concept really isn't that complex, but at first glance it can be really daunting.
I dont understand why the first one cant also be SN2
Its connected to a tertiary carbocation.
Sn2 does not react with tertiary carbon
Finally i understand, thank you sir .
great video!!
Very helpful!
this needs to be taught more
you made this way more simple than my textbook - thank you so much!
IIT JEE aspirant from india keep it up.👍
The last example... Reaction of 2ry alkyl halide with strong bulky base will give Hoffman alkene instead of Zaitsev... isn't it? 🤔
Yeah, l think he made a mistake.
I was about to comment the same, its a mistake.
thank you!
Thank you! Best explanation of identifying chiral carbons.
IIT JEE ASPIRANT FROM INDIA.
Good video I can follow it on my smartphone
This video helped a lot more than the others. Many thanks.
Nice explanation sir but voice wasn't clear🙂🙂❤️❤️
That was exactly what I was trying to figure out. Thank you for the great explanation.
Did y'all notice the humour ?... The video is informative. Thank you sir!
*Pen malfunctions* Dr.Pennington: You bastard lmfao
Thank you sir
Hi, at 12:55 you mention we follow Zaitsev rule when using big bulky bases in E2 reactions. However, I believe Big bulky bases deprotonates the Beta carbon and follow the Hoffman rule.
You are right about that - my apologies for the mistake.
Wonderful technique! Thank you, Dr. Pennington!
Irritating
This is the best explanation I've seen!!!
Thank u sir for your video .This video is very helpful by me.
So English LOL
Thanks for the video, Sir.
Sir cyclopenradiene is non aromatic but yes it dimerises at room temperature as it's unsatble