Organic Chemistry - How to Solve NMR Problems

[@asgreen139]

I couldn't do these for several hours because nobody taught me how. found your channel and you gave me a working strategy in 30 minutes. god bless you

[@jeanpyful]

Thanks for your very clear explanations. For the second exercise in this video (C13H18O) I found a second answer choice that also correlates with the given spectrum: Benzene-CH2-CH2-CH splits into CH2-CH3 and (C=O)-CH3. Although analyzing the chemical environment, your answer is more related, since the CH2 triplet is the most unprotected and is located further down the field, therefore it would be closer to electronegative oxygen.

[@chemprodao3382]

your structure would work too.

[@alegoncalves472]

I'm glad to see this comment since I obtained the same structure, and I was quite a bit sad of it not being correct 😅 It seems like it was actually not that illogical :) 😊

[@nnajieni338]

Thank you I watched so many videos. Your video is the only video that actually helped me. Thanks so much!

[@ingamhlekwa3724]

can you please sir record a vidoe where you have to deduce a structure from the given H spectra, no molecular formular is given

[@SarchanaPrince]

You are my hero. Because you solved my biggest problem❤

[@jairuskibet1472]

Excellent presentation

[@BEINGALIUMER]

Great work

[@studentseulo4469]

Thank you, fun lecture Sir.

[@plamenpenchev262]

NH sometimes goes up to 13 ppm. Usually in most of the compounds I worked with (isolated from nature or synthesized) it was between 12.4 and 7 ppm.

[@johannessievers6759]

you got an example for like 13ppm? is it an R=CO-NH2?

[@plamenpenchev262]

@@johannessievers6759 Cannot find just now the example for nearly 13 ppm (I am on holiday now) but you can see one of my papers at web.uni-plovdiv.bg/plamenpenchev/art25.pdf Even my remark I like your channel. Gretings from Bulgaria.

[@johannessievers6759]

@@plamenpenchev262 ok i guess those NH-proton signals are some of the highest you can find; in literature for learning purposes i recently read about the shift being between 0.5 and 5 .. thx for the link

[@chemprodao3382]

amine NH and amide NH have very different chemical shifts. Amide NH can be much more deshielded from 7-14 ppm as you've said it.

[@chemprodao3382]

Amide NH are more deshielded than amine NH

[@elysian711]

Very well explained! Can I get this handout?

[@chemprodao3382]

send me your email @ [e-mail]

[@diarmaidminnock1368]

Thank you good video

[@AlessiaRizzi-tk9ed]

Hi can i have this exercises, please?

[@Dieu-Le-VeutKONGO-BANGA]

Bonjour est ce que vous pouvez mettre avec une traduction de la vidéo en français stp

[@biasdastan]

Can you please solve a problem. If we have to draw an inverted tree diagram by givin shift value of 1.52ppm showing 14.0, 8.0, 4.0, 2.0 Hz coupling constant

[@chemprodao3382]

sorry that I can't give the answer to your assignment. One of my video talks about this exact topic. It's calls signal multiplicity, which you can find on my channel.

[@haaniaishaq4966]

Great explain I need this notes

[@chemprodao3382]

please email me at [e-mail] for the notes.

[@haaniaishaq4966]

@@chemprodao3382 can u please make a video protocol or procedure for estimation of steroids biosynthetic pathway in plants in lab..

[@SarchanaPrince]

Please help me to get the reference book as i am writing paper next month.

[@chemprodao3382]

what is your email? I will send you the handout.

[@lindatti7591]

Thank you so much ❤️

[@studentseulo4469]

Hello, great lecture Sir, could I perphaps ask for the book you used?

[@chemprodao3382]

I can send you the handout. What's your email?

[@studentseulo4469]

[e-mail]

[@user-hw2td8ph7s]

감사합니다 선생님

[@asifsaleem2290]

Ppm values has been explained wrong.....

[@frostbolt25]

hi there thanks a lot for this video. for the last question, would it be correct if I switch the position of the -ch2ch3 group and the h in -ch2 attached to the carbonyl? thank you so much!

[@chemprodao3382]

if the CH2CH3 were to connect to the carbonyl (replacing the CH3), we would expect the CH2 to be a quartet with a chemical shift of roughly ~2.1 ppm, which we don't have in the spectra, so it wouldn't work.

[@halaa9319]

10:15 how is it meta? i do not understand

[@paigec7596]

I think the integration pattern indicates meta

[@n.ainnnn9688]

where can i get this notes??

[@chemprodao3382]

email me at [e-mail]

[@mikepeter8375]

Can I get the note please?

[@chemprodao3382]

What is your email? Please email me at [e-mail]

[@amatulkareem881]

Whixh book is this?? Can i get these notes?

[@chemprodao3382]

Send me an email if you are interested in the notes

[@amatulkareem881]

@@chemprodao3382 Sure Your email please?

[@chemprodao3382]

@@amatulkareem881 [e-mail]

[@anathipretty8882]

Hy Is book still available?

[@chemprodao3382]

What is your email? I can send it to you.

[@nihal_nihal-algérienne]

Please, Professor, send me this book. I desperately need it. Following you from Algeria🇩🇿, thank you very much for your explanation.

[@biasdastan]

Its urgent