Naming Alkenes, IUPAC Nomenclature Practice, Substituent, E Z System, Cycloalkenes Organic Chemistry

[@TheOrganicChemistryTutor]

Organic Chemistry - Video Lessons: www.video-tutor.net/organic-chemistry.html

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[@PunmasterSTP]

@@AlienfromAndromeda. I like you too! And yes, I'm pretty sure I remember at least one person getting back to me after a decade. I tutor people in math and science and visit educational videos on KZbin fairly regularly. I think one of the 10+ year replies was on an ultrasound video, but I can't quite remember now.

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[@PunmasterSTP]

7:48 It's always good to remember that the chain has to go through the double-bond, even if you could make a longer chain elsewhere. Thanks for the explanation and all of the examples!

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wrong

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its 2 a.m. watching videos of how to name Alkanes, Alcohols, Alkenes, Alkyne, Cyclic structures, and Aromatics and you simplify this so much, thank you.

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The part at 6:47 about the priority for double bonds is overlooked by many teachers....thanks for removing confusion

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Omg this helped me so much more than all the german videos about alkenes I saw before! Thank you!

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i understood more here than in my one year of chemistry lessons-- THANK YOUU

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Learned more in the first 7 min of your video, than 2 hours of class lectures

[@iced751]

At 8:22 couldn't you have started at the very left with 1 and counted 3 as the double bond, making the longest strand 8?

[@sanyasarin]

I also noticed that!

[@nitipatel8951]

The double bond needs to be included in the main root chain. @@sanyasarin

[@rithevikaravind815]

No, you have to include both the carbons involved in the double bond, in the configuration you suggested only one of the carbons involved in the double bond is considered. @@sanyasarin

[@boredmonke2959]

the double bond has to be included in the longest chain. It means the WHOLE bond, not just a part of it

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the double bond needs to have the lowest number which is 1 so the chain starts from there

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Pretty good, but you should have included some double bond chains outside of a ring with double bonds inside. You helped get some big concepts though, good job!

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[@kennethara2034]

8:10 why is the chain only 7? You can start counting on the left most carbon to make it 8.

[@specialgamer6852]

I wonder if you made sure about it , I realy want to know. 8:00

[@kennethara2034]

@@specialgamer6852 looking back now, I think its because he stated that the double bond should be the lowest no. The double bond's position takes precedence when determining the name. Since you can have the double bond on Carbon 1 with a 7-carbon chain, you must use that option because it gives the double bond the lowest possible number.

[@specialgamer6852]

@@kennethara2034 thanks

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[@viraru_28]

​@@kennethara2034then double bond should always be given 1 number and the chain should be started from multiple bond 🤷🏻 , am confused-

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[@sarabakhit2225]

8:17 sir this is not the longest chain and you check again by numbering from left until you reach down to the branch and you will find out that the longest chain is actually octene , THANKS for your efforts .

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The 2 double bonds should be included in the parent chain :))

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[@juliatizon1151]

Hello! I think the parent chain in 8:11 is octane.

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I don’t understand why it wouldn’t be octane either 8:16

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i'm still confused a little bit but thanks a lot for this!

[@BL-uf8vb]

Right. At first I'm like oh easy, double bonds means end everything with ene ... then came the addition of other molecules being attached which made it even more confusing as well as multiple double bonds turning it into diene, triene, etc and having to put it all in alphabetical order 😭

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[@adegboyegasamuel342]

7:33 2-bromo-1,3,5-cycloheptatriene

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Exactly

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This was an ALPHA video!

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[@bezukaking6860]

For the example at 8:33, isn't the priority to find the longest chain? As such, shouldn't the left ethyl group be part of the chain, and the double-bond be called a 2 methyl groups?

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Thank you (Fri 18 Dec 2020, 8:49 PM)

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I was stretched to the max but you made. Thank you so much!!!!!

[@arindamaggarwal1200]

at 7:08 shouldn't it be 2-bromo-1,3,5-heptatriene? great video btw

[@paysonkeown2960]

The double bonds are given the lowest numbers

[@arindamaggarwal1200]

@@paysonkeown2960 thanks for the clarification.

[@yanashandy]

But thinking about it, the number of ​the double bonds are still the same, which is 135 @@paysonkeown2960

[@chimiechemistry1532]

But if we number the ring to give the bromine atom position 2, the double bonds would be numbered as 3, 5, and 7 instead of 1, 3, and 5.

[@raginijukanti2657]

Very good Explanation