Naming Aldehydes - IUPAC Nomenclature
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- เผยแพร่เมื่อ 7 ม.ค. 2025
- This organic chemistry video tutorial explains how to name aldehydes including iupac nomenclature. It provides plenty of examples and practice problems of naming aldehydes with other functional groups such as ketones, amines, alcohols, halogens, ethers, and carboxylic acids and benzene ring substituents.
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This was an awesome explanation and review of the relevant nomenclature! I really appreciate how you covered so many examples in the span of 12 minutes. This channel is such a gem among everything else on TH-cam. Thanks so much for making it!
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in 6:53 i think it's not an 'oxo' because it's not a ketone subs. but it's a aldehyde subs. so it should be a 'formyl'?
I think so
Was thinking the same, formyl should be correct
Can anyone tell me it should be oxo or formyl some told me it's oxo some told me it's formyl so which one is the correct one?
@@muhammadjubair248 formyl
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i thought when aldehydes were substituents they were called formyls or something and i thought oxo was purely just for ketones? is it wrong to put 6-formyl instead of 6-oxo at 6:38 ?
@6:50 It should be 4-bromo-6-formylhexanoicacid since the aldehyde has "fomyl" prefix.
thats what i was thinking
No, because the carbonyl carbon of the aldehyde group is counted in the main chain so aldehyde is not a substitute. But only =O(oxo) is the substitute. So he is correct.
Correct
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Doing a unit in Fundamentals of Carbonyl Compounds and Amines and this is very helpful...you get a solid 10/10.
in the example 6:53 the substituent 6 oxo is an aldehyde right? but the prefix of aldehyde is formyl? and oxo is prefix is ketone?
it does have H it must be an aldehyde?
4-bromo-6formylhexanoic acid?
help😭 I'm lost
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4-bromo 6-formyl hexanoic acid
6:50
No it's 3 bromo-6 formyl hexanoic acid since left side compund is aldehyde as well and bromo group is closer to it 😀
Ahmed raza Abbasi correct me if I’m wrong, but the group with the highest priority always starts at 1. Therefore, it’s not 3-brink but 4-bromo
What's the difference between oxo and formyl? Can you please enlighten me?
@@Apollo-wg1mc we use oxo for ketones and formyl with aldehydes this is what teacher told us in the lesson
At 2:52 can we call it hex - 3 - en - al? Sorry if it's dumb.
Yes of course.. We can
Thanks sir
I like your teaching method
Thank you for the video! well explained
What is he does he mean at 2:16? I really don't understand it, i'm in 8th grade and i really don't get it..
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- why is the benzaldehyde not named with “carb” before the aldehyde ?
As for the cyclopentane carbaldehyde before it ?
That would be the last two naming in this video.
This is just a common name from benzene derivatives
Thank you for such helpful videos. :-)
awesome explanation
Totally different, thanks alot !
Thanks for this. I hope the nomenclature rules have not changed much.
Good explanation
Teacher
The molucule at 2:49 should be trans-3-hexenal or trans-hex-3-enal
6:52 i numbered it the other way round because its 3-bromo-1-oxohexanoic acid. I'm conflicted as to why you chose 4-bromo-6-oxihexanoic acid
The hexanoic acid is the main chain
And has a priority over the aldehyde
@@bluekaiser9452 thanks hey my bad. Must have been tired from studying
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Actually at 6:53 it should be formyl or oxo
Yes it has to be formyl as it is an aldehyde as a substitute not ketone!!
Great one mate 👍
why in 8:36 is phenyl? that should not be a toluene?
dude toluene is a molecule, phenyl its a group, may have the same thing or very close, but they aren't the same
At 2:14 can I just say 4- methyl -1-pentanal ? Is it wrong?
You don't need to put 1-pentanal since its already known that the first carbon is where the aldhyde is attached. So 4-methylpentanal is correct.
@@niiinooon1702 wow.. since you know alot about organic chemistry.
anybody else immature enough to laugh every time an alkane aldehyde is named?
Great video
Did you mix up the substituent names between aldehydes and ketones? I'm more confused now.
I know its late but yes he did.
He didn't. Both oxo and formyl are the prefixes.
thank you soooo much sir!!!!!!!
There's a confusion.! Why in the last 2-3 examples numbering was not started from carbon having the oxygen , but from its neighbouring carbon ?
Aldehydes can't be directly bonded to a ring, so you can sort of think of the ring as a substituent of the aldehyde. The carbon of the ring that is bonded to the aldehyde is carbon#1 OF the ring.
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Thank you 😊
10:35 timestamp
Do u have the updated version this was 6 years ago. Doesnt iupac update every 3 or so yearssss
Is the last problem suppose to be 4-chloro-3 methyl cyclohexene carbaldehyde? I thought benzyl needed to have a CH2 attached to the benzene ring.
Why don't you use E/Z in your naming?
Nora Ross ya I think that he forgot
Thaaaaanks a lot 😍
What do we call when two benzene rings are attached as a substitute?
n,n-diphenyl
What does the R represent on the structure though ?
Thank you
why is the aldehyde oxo? 6:52
When aldehyde is used as a substitute the term is -oxo
Some literature refers to an aldehyde substituent as -formyl.
I think he made a mistake, ketone substituent name is -oxo, aldehyde substituent name is formyl
Richard Barros yes! I was just thinking that. I had to pause and look at the comments because I learned that aldehyde as a substituent is formyl
@@taniaax33 oxo is for ketone, its formyl for aldehyde
Why is it -6-oxo when it is an aldehyde and not ketone
don't you need to name the cis/trans-configuration in the fourth example?
How do you keep all these things pleaase!
Hello, how can I find a chart online to provide the naming scheme based on the amount of carbons ? Anyone ?
may be a little late.. but just a flex:
1 carbon- Meth
2 carbon- Eth
3- pro
4- but
5- pent
6-hex
7- hept
8- oct
9- non
10- dec
Yes bro
Does alcohol have a higher priority or aldehydes?
aldehydes but you name the alchohol first
How do you name if there are two aldehydes attached?
exapmle: hexanedial
u keep E in hexane and add "di" for double
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I thought u should count the carbon from first dot not the second?
I couldn't know the differences between benzyl and phenyl
I think you got the order of priority wrong for ethers there my guy... they're nearly at the bottom of the priority list of organic groups...
Got itt
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at 3:31 isn't that OCH3 a methoxy, not an ether?
It is an ether group, but since it is written as a substituent(because it has less priority than the other functional groups in the chain), it will be written as methoxy, ethoxy, etc.
Same goes with OH group. It is an alcohol but if more important functional groups are present, then it be written as a substituent with the name "hydroxy"
Hello
Hexen-3-al
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0:52 bad joke tho
1/16/2021
Plss do a condensed
methoxy
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chauhan gulshan
Thank you ❤
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chauhan gulshan
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