SN2 Reaction Mechanisms
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- Опубліковано 6 чер 2024
- This organic chemistry video tutorial provides a basic introduction into the SN2 reaction mechanism. It explains how to write the mechanism that leads to the major product of an SN2 reaction. It discusses the stereochemistry of the SN2 reaction which proceeds with inversion of configuration. It mentions substrate reactivity, nucleophilic strength in a protic solvent and in a polar aprotic solvent as well problems involving the chair conformation of an alkyl halide. The full version contains a few synthesis SN2 reaction problems.
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Access The Full 1 Hour Video on Patreon: bit.ly/3juOc8X
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15:39 CORRECTION: Nucleophilicity decreases as going from left to the right across the periodic table.
yeee i went straight to the comments after seeing that
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At 15:39, did you mean nucleophilic strength decreases as it goes to the right?
Yes he did
I also don't get it clear
@@marcandmusicc I think it should decrease
I think bascisity increases across the row which means a stronger nucleophile
@@Sheldon_J.Plankton no. Nucleophilicity decrease as going from left to the right on periodic table
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so the nucleophilic strength decreases to the right? or increases to the right?
nucleophilic strength decreases to the right, he made a mistake
Thank you for saving many asses getting whooped over all these years
Is NaBr not formed as well at 2:34 ?
how can H2O a weak nucleophile/weak base react with a primary alkyl halide that can’t undergo rearrangements in SN2??
Why would iodine, in potassium iodide, displace bromine when bromine is more nucleophilic than iodine? Thanks.
a little late sorry but the iodine has a negative charge while the bromine does not, halogens will be nucleophilic if they are charged but they will be electrophilic if they are attached to a sp3 hybridized carbon
Just commenting for the algorithm. {pls. comment so he can get more views}
at 10.27 how is the structure on the left a secondary structure
You wanna look at the carbon that attaches to the Bromine atom. Along with the bond to Bromine, it also bonds to two other Carbon atoms. The number of carbon atoms that a carbon is attached to is what determines whether it is primary, secondary, tertiary, etc.
15:34 seems backwards, but I suppose the electronegativity will depend upon the solvent/solution
no you're right, he made a mistake. As you go to the right in a row of the periodic table nucleophilicity decreases, for the same reason basicity decreases: the atoms are more stable with their negative charge, leading to them reacting less.
@@tdelliott-diab3860 so, F- have stronger nucleophilicity than OH- and the weakest is NH2-?
At 1:23 isn't the bromine supposed to pull away
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10:44 benzene variations
20:39 H2O, deprotonation
15:34 is confusing....... 🙄
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How r yall learning this in college...im learning this in high school 💀💀
We also learnt the same when we were in high school but in tertiary they add more detail..more flesh
15:47
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600th viewer
a lot of this is wrong
really??
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