Naming Alkynes - IUPAC Nomenclature & Common Names

This organic chemistry video tutorial provides a basic introduction into naming alkynes using iupac nomenclature and writing the common names of alkynes.
Alkyne Synthesis Test Question: • Alkyne Synthesis React...
Alkyne Reactions Review:
• Alkyne Reactions
Alkene Reaction - Stereochemistry Test Question:
• Meso Compounds, Enanti...
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Stereochemistry R/S Configuration:
• Stereochemistry - R S ...
Optical Activity & Specific Rotation:
• Optical Activity - Spe...
SN1, SN2, E1, E2 Reaction Mechanisms:
• SN2 SN1 E1 E2 Reaction...
SN1, SN2, E1, E2 - Practice Test:
• SN1 SN2 E1 E2 Reaction...
Alkene Reactions Review:
• Alkene Reactions
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[@danielgladish2502]

Great video. However, at around 10:15 you state that the alkene has more priority than the alkyne. This led me to believe that an alkene ALWAYS takes priority over alkynes, which is not the case. Most of the time alkynes take priority instead of alkenes except when both have the potential to be carbon 1 of the long chain. I think it would be beneficial to make this clear. :)

[@ayeshaaamir5092]

Thank you this was just what I was looking for. Didn't even have to watch the whole video

[@mattflores8911]

Was looking for this too since in my book I’m seeing an example of alkynes being prioritized while numbering. Strange

[@lbthgml]

This is exactly what I was looking for

[@15viiickohilramnuvvala4]

The functional group that gives the name of parent chain has higherpriority

[@f_garcianariela7468]

Thanks

[@dumisani1518]

I have an organ chemistry test in 4 hours thank you so much you’re the best 💯❤️

[@caedes550]

This was alkynes of help 😆😆🤣🤣😭😭😭

[@stanleynzioki3572]

Badam tss😂😂

[@xxherokillerxx2372]

39 Buried 😶‍🌫️
0 Found 🦹

[@FakePrelude]

*sighs in chemistry*

[@ebhojayejuliet9728]

W comment 😂😭

[@briangama6057]

😭😭😭

[@cubajunior5832]

Thank you so much. I wish you well in all you do. Clear and fluent English, everything is made simpler!! 😇😇😇😇😇😇😇😇😇😇😇

[@notme3330]

my man(might be my girl) here is indirectly dissing indian tuters😂😂

[@rubixhiphop]

@@notme3330 for real, dude needs to chill lol 🤣🤣🤣

[@teddymathabatha5235]

Great videos of all time, THANK YOU!!!!!!!

[@salalalalai]

I've became an Olympic student thnks to your videos 😭😭❤️❤️❤️

[@elierreyes9287]

now win using his videos

[@CalvinDean-lq1be]

I'm havin Alkynes of trouble with this one

[@آمݪآمݪ]

اتابعك من العراق لقد استفدتُ جدا اشكرك حقا 😊

[@KamranUllah-uw8ht]

But do you understand English

[@amykirk8026]

I really enjoy your videos however at 12:21 you state you need to include the alkyne in the carbon chain when numbering. However, if the longest carbon chain is a alkane. you number the alkane and the alkyne becomes the subsistent. resulting in 4-ethynyloctane !! :)

[@Emily-rz8pb]

Alkyne has a higher priority than alkane, that’s why it’s 3-propyl-1-heptyne

[@anfalmuhammad6871]

Thank you for you help man...really appreciated your work...keep it up

[@rejoiceojonugwa1268]

You are a life saver 😢

[@niloestemo3511]

Ene comes first before yne.. if both of the alkene and alkyne are present in the substance

[@jangy36]

𝑖'𝑚 confused with that part 𝑖 thought triple bond always had more priority

[@imranqaimkhani2855]

Thank so much for helping me

[@jeffuy7565]

Thank you so much, you're a hero

[@ItsMe-dj6pl]

I really really like ur videooos😭💛

[@bradleydanny6990]

I Really love this video.
It helps me a lot....

[@oluwaseunelizabeth2575]

Thank you so so much❤

[@lxvkn]

THANK YOU!

[@shehabsayed5605]

thank u for helping me ... great job keep going❤👍

[@SawawaMkandawire]

Thanks you have helped me a lot

[@no-handlleee]

thanks my dude

[@Mohammed-Alarasi]

Perfect as usual!!

[@jamarrikey1711]

At 6:10 u said diisopropylacetylene, I understood you meant diisopropylacetylne. Thanks for your help.

[@anshverma9189]

great job keep it going

[@winproduction7585]

Thank you sir

[@Shan-jg4nd]

HI! Why do we prioritise OH more than alkynes? Thank you

[@triple_gem_shining]

libretext has a great page on this topic, go check it out

[@jangy36]

10:15 what? my teacher said alkyne has more priority

[@gwena9043]

Great vid as always! But at 10:38 shouldn't it be 5-hexyn-1-ene since hexene takes priority over hexyne in this case and, thus, becoming the final suffix...?

[@marcusfitzaptrick7716]

Nope. Its an enyne so its name correctly

[@clouds2204]

I'm confused about that too

[@jangy36]

𝑖'𝑚 confused too like doesn't triple bond have more priority

[@DonovanMoore-oc6xm]

I have a question at 9:46, isn't there an ethyl group after the 7th Carbon (CH3CH2) why isn't that included in the IUPAC name for this example?

[@randolfshemhusain2298]

Because that's part of the parent chain and not a substituent

[@usmankhurram5057]

Great sir

[@chenCruise]

why I find on the internet that alkene actually does gain priority over alkyne..

[@navidzayen9235]

Thanks g

[@srijak6611]

at 9:40 can it also be written as nonadiacetylene

[@baakmalong7738]

At 5: 49, what is the IUPAC name of diphenyl acetylene?
Just need help 😊

[@triple_gem_shining]

wikipedia it and itll tell you

[@eppephaniaphiri]

Good explanation but needs to focus

[@minjinseo3681]

I have a question, is there such Alkyne with 1 carbon? Such as CH0?

[@rwayle]

No that is impossible, the smallest alkyne is ethyne C2H2

[@sethchariker6707]

@@rwayle the reason being is due to the valency of your proposed molecule, to add onto what Ryan had said.

[@reanramosz]

13:13

[@manojkumarjaiswal4873]

Anyone from India 🇮🇳🇮🇳

[@bende8638]

@11.27 shouldnt it be 2-butanol-3-yne since you said the alcohol has higher priority ?

[@amscsk1658]

The one being put as priority tends to be at the back

[@angela-kp4xv]

@@amscsk1658 so when he says the alkene takes priority over the alkyne, shouldn't it be 5-hexyn-1-ene and not 1-hexen-5-yne?

[@Okehchioma-qz3le]

Pls can someone pls explain the last example on this video. The 3- propyl. Why is it propyl

[@paysonkeown2960]

You need the longest chain that has the highest priority functional group (alkyne in this case). The longest chain is 7 carbons. Now, the only substituent is the propyl group. Starting from the alkyne side, it must be on carbon 3

[@dumisani1518]

Make sure the longest chain includes the functional group and if you look at the other side there are 3 carbons making it propyl

[@malhargotad4404]

At 11:29 can 3-butyn-2-ol be called as 2-hydroxy-3-butyne? If no why not?

[@chirayudesai793]

Both names are valid, but the IUPAC system recommends using the name that gives the functional group the lowest possible number. So, in this case, 3-butyn-2-ol seems right. I know OH is hydroxl too but I like to assume it represents the more common Alcohol fxn group

[@samuelseniorboakye9447]

what is the common name for 2-chloro-5-methyl-3-hexyne. because you didn't state it there.

[@triple_gem_shining]

sometimes there isnt one.

[@gheorghecb4720]

9:30 why is it not called 7-methyl-1,5-dinonyne?

[@maryroselynebona7010]

Because you have to put the di, tri, tetra. etc before the suffixes, so it will be nonadiyne

[@minjinseo3681]

Why the answer in 10:42 cannot be 1 - hexene - 5 - hexyne?

[@rwayle]

Because that's not how IUPAC say the name should be formed. You've got hex in there twice which doesn't make sense.

[@elizabethguillena1798]

how do you know which group they belong? like the isoprpyl

[@Thatsthatsnini]

It depends on the bond like if its single them its ane, if its double then its ene, but if its triple then its yne

[@savannahhalm]

On 8:10 why cant you number putting the Cl first, and follow that path that would still make 6 carbons as well ? Help please!

[@maryroselynebona7010]

In this case, where the number would be the same, you have to choose the name that has the lower number first. Since chloro needs to be listed first, numbering the Cl first would give it a lower number.

[@bende8638]

@1.25 why are the ch3 not part of the longest C-chain though ?

[@chad-ir9dr]

🌹❤️

[@jimhalpert9803]

Studying chem and all is good but are you a blood donor?

[@maryroselynebona7010]

lmao