Organic Chemistry PDF Worksheets: www.video-tutor.net/orgo-chem.html Full-Length Exams and Worksheets: www.patreon.com/MathScienceTutor/collections Next Video: kzread.info/dash/bejne/f2usz5d8e6yudcY.html Alkene Reactions: kzread.info/dash/bejne/nn-Gsbpqc5OwgtY.html

This dudes a legend. Here I am at 1am and this guy has taught me more than my month and a half in my org chem class.

@hayfordodartey1962

3 жыл бұрын

I think he is the best so far🤗🤗

@kariacampbell504

2 жыл бұрын

Feltttt

@nb6955

2 жыл бұрын

The way I’m using to remember E and Z is that in E, the priority groups go “Eww” and stay away from each other.

@ColonelGrande

11 ай бұрын

@@nb6955 THIS IS GENIUS THANK YOU SO MUCH

@mong7192

9 ай бұрын

@@nb6955LMAOOO STOPP I LOVE THAT

8:00 - If ur in a rush

@Aya-wv3rt

3 жыл бұрын

Thank you!

@ziolan8970

3 жыл бұрын

You are awesome

@emmajohnson964

3 жыл бұрын

THANK YOU from somebody who's orgo final is in 15 minutes lmao

@brandonopara7778

3 жыл бұрын

@@emmajohnson964 how did it go

@darshmehta3155

3 жыл бұрын

@@emmajohnson964 ????

I love how fast this guy goes through examples. Explains well, hits all kinds of problems, and is overall super helpful. Thanks for saving my grade

Holy crap this video might have just saved my life. I have an organic chemistry exam in less than 4 hours, and this dude just explained a concept I've failed to grasp all quarter. Very grateful

My chem prof made a mnemonic to remember the Z isomer. It's Z because the two groups with the highest priorities are on the "Zame Zide" (Same side). Obviously, for the E isomer it would be different sides then.

@vedantpatel8266

4 жыл бұрын

i think of it as acrosZ and oppositE.

@gregorymoore7617

4 жыл бұрын

My teacher said think of E like “ears” which are on “opposite” sides of your head.

@jamesburmeister1608

4 жыл бұрын

This helps, thanks

@ashutoshkudva9269

4 жыл бұрын

this was super helpful, thanks

@trimikeycool

4 жыл бұрын

i always try to think it as "like Zis"

If you want to jump right into E-Z system, then it starts at 8:10

@huskayare9956

Жыл бұрын

Thanks bro niliwatch❤

You are the best book i could ever learn from!!!Orgo surely doesn't have a good reputation among students BUT you make it look like any other regular course!!

Came to you because professors have proven to be useless, once again. You are incredible and have saved me in numerous classes throughout college. I love you. Thank you.

@sciencesynergy-g4h

Жыл бұрын

Aah😂😂😂

You deserve a 5star. I really like your tuitions because it has helped me from Jhs, and SHS as well. Thank you and God bless you too.

I am a UNIBEN undergraduate and this your lecture video on isomers is simply top notch far better than textbooks

ive been trying to figure this out for months. i needed only 11 minutes of time... incredible.

does the orientation of the pi bond change when switching between e and z configuration?

This guy is the best, Loads better than any lecture professor

E and Z come from the german words "Entgegengesetz" (Opposite) and "Zusammen" (Together)

THESE ARE THE PEOPLE ON KZread WHO DESERVE TO MAKE BIG MONEY! I AM TRYING TO GET INTO MEDICAL SCHOOL AND YOU'RE AMAZING AT TEACHING ORGANIC CHEM! Yes the capital letters were me yelling this XD.

@Daphinemwanza-dr9ls

Ай бұрын

😂😂😂😂 perfectly said 😊

I listen to your explanation bc of your voice its very calming

Can someone explain why he does not use the E Z system on cycloalkenes? (like why doesn't he indicate whether it has an E or Z configuration on its nomenclature)

What if the two highest priority groups are both on the left side of the compound?

you literally saved my life 😭 thank youu soo much !!!! 🥺😭

How do you tell the difference between cis and trans-2-butene in the skeletal structures (at 1:20 into the video) ?

@mariekegraf9087

4 жыл бұрын

For anyone else who has the same question. It´s easier to see whether the molecule is trans or cis when you draw the hydrogen to the second and third carbon. If the hydrogens are both upwards it´s cis-2-butene, if one hydrogen is up and the other hydrogen is downwards, it's trans-2-butene.

Zame and Eppisites.

@sallymaher5929

3 жыл бұрын

You’re a genius

but for the last example tho I thought we have to prioritise and make double bonds the lowest position possible? so isn't it suppose to be (Z) 1,2-dimethyl-1-propyl-1-pentene

@avamaykienbaum2065

5 ай бұрын

@theorganicchemistrytutor help!!

I have a question about dienes? How do we do e and z when there are multiple double bonds

11:50 Can we call it Sis - 4,5 - dimethyle - 4 - octene ??

In the last question the correct name of the compound is - (Z) 3-methyl-2-propyl hex-2-ene (by giving the double bond lowest numbering). The parent chain will contain 6-carbon not 8.

Tomorrow I have test in organic chemistry about this topic. Thank you for everything...

Wow chem is more easier. This dude is a genius. We need such chem teachers

i guess we all agree this man is the king of chemistry

doesnt the 4-methyl-1-hexene have a chiral center?

In this structure 2,5-dimethyl-3-propyl-hexene I have been struggling to find out what the longest chain is. I wonder if there is any scenario where the parent chain is not like longest chain in the alkene above. Any one to help

@theunusedbrain3291

Жыл бұрын

You have chosen it right because according to the IUPAC rules - 1) The longest C-chain must contain double bond. 2) Longest C-chain must get maximum number of branches(try to get multiple number of branches rather than getting one complex branch or substituent). So, 2,5-dimethyl-3-propyl-hexene is the correct IUPAC name and 2-methyl-3-(2-methyl propyl)hexene is the incorrect one.

Thank you, this was helpful

Can someone assist me with the structure of (E)-1-Bromo-2-isopropyl-1,3- butadiene. Check if it must be E and not Z

Man, you are just a pure legend!

For the very last question, do you need to use the E,Z system? They aren't different groups so cant you just use cis-trans?

@woodchuk1

3 жыл бұрын

No, because the alkene is tetrasubstituted...there’s no way to tell what groups are cis or trans to the others. The two methyl groups are cis to each other, for example, but each of them is trans to the propyl groups, so which do you pick? So it has to be (Z)-4,5-dimethyl-4-octene. For trisubstituted and tetrasubstituted alkenes, the EZ system is required for unambiguity.

At 10:42 isn’t wrong to count from the ethyl group because if you start from the methyl group the double bond would be number 2 ??

@tapinwardly

2 ай бұрын

dude that's what I am thinking! Sucks my final is tomorrow morning and nobody is gonna read this.

Is this according to the newest IUPAC rules released? In class, we learned if there are no rings: the longest chain has priority regardless of the presence of multiple bonds, which is different from the older IUPAC rules. Do you think you can clarify? Overall-helpful with distinguishing E and Z isomer. Thank you!

@rachierachvlogs

4 жыл бұрын

These aren't the newest iupac rules. U can tell because he names 2-butene instead of but-2-ene

@Elorm

Жыл бұрын

The bonds are counted before the substituents

I am Iraqi stady in HUST in china. You the best lecturer 👌🙏

What is the second 3 and second 4 in the 2nd to last and last problem? Why is it z 4,5 dimethyl FOUR octene???? I don't understand the 2nd 4

@woodchuk1

3 жыл бұрын

The 4 in 4-octene indicates which carbon of the main chain that the double bond starts on.

God bless my friend, well explained as always

Very helpful discussion 🙏🙏🙏

why did you start counting from the left instead the right at time 2:01 ?

@pavanbhat3861

4 жыл бұрын

Its the same from either way.

At 7:56 why isn't it 1-ethyl-5-methyl-cycloheptene? I started counting the same direction as he did in the beginning, but when on to count the ethyl with a 5,6, and 7. @TheOrganicChemistryTutor or anyone else. Thank you.

@rxxxanxx4828

4 жыл бұрын

First, u need to consider where is the double bond. Then, u put the number on that ring. So we can see we have methyl and ethyl right? The reason why u write ethyl first then methyl because "e" come out first before"m"

@ 10:46, where does the second 3 come from? I understand the (E) - methyl and heptene part but why is there a 3 in front of heptene?

@user-lk1cl6ev7g

3 жыл бұрын

the double bond is on carbon 3, sorry if this is late

@BL-uf8vb

3 жыл бұрын

@@user-lk1cl6ev7g no worries it refreshed my memory as I thought I figured it out but looking at it again I got confused but now I get it. Thank you!

are the En'Z and CISn'TRANS both similar? cause in you know the other channels or video are using CIS and TRANS just trying to ask if they're the same

@jamesinman9262

2 жыл бұрын

The E/Z system is an absolute form of naming, which can always be applied for clarity. Cis/Trans only works in simple cases, and only tells the relative configuration.

Skip to 8 minutes for the actually video

6:14 Could it also be 2-ethylcyclohexene? You could start counting at the carbon above and achieve a smaller number for the ethyl group.

@timisanniofficial

2 жыл бұрын

No, it can't bro. For carbon 1 to take the double bond it has to be between C1 and C2. Putting it between C6 and C1 will be giving the double bond to C6 even though C1 is the lower number.

@cabralesmj5

2 жыл бұрын

@@timisanniofficial Thank you. :)

Thank You So much !

U made my day😊

Thank you very much🙏🙏🙏...we appreciate

the fact that his voice is also soothing

Took me 2 hours to decipher a 12 minute video

GRACIAS. YOU ARE TRUE KING

you're a genius bro ily

i think my brain just comit suicide

Thanks sir.... Huge respect from Pakistan 😍

Thanks so much ,

9:41 I got (Z)-2-bromo-1-chloro-1-propene for the left and (E)-2-methyl-1-buten-1-ol for the right.

Very good

I love the video it has helped

11:48 can it be "(Z)-4,5-dimethyloct-4-ene?

@bellaccino129

4 жыл бұрын

Yes!

@karinalalwani4730

4 жыл бұрын

yes!

@woodchuk1

3 жыл бұрын

Yes, that’s also considered correct, but saying it that way has always grated on my nerves a bit. I generally tend to say names likes that with the number entirely before the parent chain.

Explanation is good.... thank you so much........

you the best bro💯

From 8:10 nomenclature of E/Z Isomers

Wow that's amazing

In 6:16, why ethyl and not methyl?

@sheilamae7279

4 жыл бұрын

There is an invisible bond between CH2 and CH3

can we use E-Z for cycloalkenes?

@aeropostale101nw

4 жыл бұрын

I don't think it applies for cycloalkenes. R and S do though

@giovannifalcone8040

4 жыл бұрын

@@aeropostale101nw thank you !

Thank you

He's the best✨

For cis it's Z (zusammen -together ) both z and t are consonant, and for trans it's E (entgegen-opposite) both e and o are sonant/vowel you can remember from here. thank me later :)

@jasbharaj

2 жыл бұрын

it is even difficult than the actual E Z isomers concept lol

Thank you dai

How do you know where to start counting?

@bigbang8012

3 жыл бұрын

You prioritize the alkene (double bond) so u start with it

@levikaneki5778

3 жыл бұрын

Very useful to him after 6 months

@Dina-he1uc

3 жыл бұрын

@@levikaneki5778 lol

Thanks for making this lesson SO EZ Hehehehe

You're the only reason I'm passing my guy

Living legend 🙌

I get that everyone is saying "this saved me" I get that its a good explanation. I am still confused though oh my goddddd

7:00 isn’t there not a 1-cyclohexene at the end for double bond

@paysonkeown2960

4 ай бұрын

Adding the 1- isn’t necessary as it is known the alkene occurs at position 1

THannkkk youuuuuuu

You saved me man

Actually I am not able to understand tht last one 😢

ty

after tm my unite 1 chem exam wish me luck please

a genteel men i can't till end of my life

I need to see the face of this man!!!

i love loving you.

@SujanChattaraj-C-

4 жыл бұрын

Nice

It so easy yet u freeze up during test...

I love you

It sure is E Z to learn!

❤️

It was very E-Z

6:42

"Zee Zeme Zide" and "Epposite"

This voies🥲

there is no double bonds in most of these but they end in ene??

@jamesburmeister1608

4 жыл бұрын

Are you okay

At 5:10 u made a mistake for finding the longest chai

@eliabaron6543

4 жыл бұрын

With alkenes, the rule is that the chain *must* contain the dubble bond. Looking at the possibilities including the dubble bond, we can see it was indeed the longest chain.

You are loveable

Why tran

Anu is the worst chemistry teacher - heritage college ppl wya

Can we get married

@astronics

7 ай бұрын

💀

Thank you