Hydrogenation of Alkynes

We learned about hydrogenation when we first checked out addition reactions, but we were doing that with alkenes. How can we perform hydrogenation on alkynes? It's not much different, but there are some important points to go over, so check this out!
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How’d your chem class go?

[@organicchemistry6357]

Question regarding this: When you combine this with the alkylation phenomenon, you can for instance make diethyl amine by making ethylene react with ethylamine and a catalyst. This reaction is called hydroamination. Is this reaction exothermic or endothermic?

[@ezchem3139]

Very well explained. Thank you

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Thanks. Wish you were my professor for OChem.

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[@sarahm1321]

Do you have a video explaining hydrogenation of alkenes?

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amazing video, very useful, thanks a lot!

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Thank you!

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Do the hydrogenation of fungus of various types so we got petrol type oil easily ??

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do the hydrogenation of all types of soil, mixing with water and hydrogen peroxide solution so we got more hydrogen during hydrogenation so we directly found the ghee like substance at first level, no need of fodders and other projects

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could you do some organic chemistry with polymers ?

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Thank you so much

[@dianacarpio4721]

what if H2 and Lindlar's are on the same step with hexanes underneath?

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this was so helpful, thank you!

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@@PunmasterSTP I am! I have graduated this year (2022) in Biotechnology, now looking for masters opportunities in other countries. I hope that I will be able to reply this comment after another 5 years saying I’ve joined as a professor somewhere. Thank you so much for asking.

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@@arpitwasnik alive and working towards the goal! Completed my graduation and working on some research projects before admissions open for MSc

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I love organic chemistry. Everything about it is investigation -> there's very little "plug in the numbers and run", so it's always a tax on reasoning and memory.

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Professor why a mole is used as a SI unit

[@ProfessorDaveExplains]

because it's so super useful!

[@chandrashekherc76]

Professor Dave what I mean to ask is that why 6.022 10^23 is chosen as a unit in terms of which other atoms, molecule etc are represented?

[@ProfessorDaveExplains]

because that's the number of particles required to convert between atomic mass units and grams, so it wasn't "chosen" so much as measured/discovered. check out my tutorial on the mole in my general chemistry series for a thorough explanation!

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Thanks professor

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3:53

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Good

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[@abhishektiwari7643]

Enemy is the word for the E configuration, professor cause they are opposite to each other

[@ProfessorDaveExplains]

E stands for entgegen. It's German.

[@abhishektiwari7643]

@@ProfessorDaveExplainsI'm not telling what E stands for. Enemy is a way to remember the E configuration because the higher priority groups are oriented oppositely or away from each other 😃

[@ProfessorDaveExplains]

Ah, I see. Whatever works!

[@NewWesternFront]

@@abhishektiwari7643 thats a good one

[@crazymac6363]

What's ze zame zee ؟؟

[@ProfessorDaveExplains]

zee zame zide! that's just how we remember what E/Z mean. check out my tutorial on E/Z configuration of alkenes.

[@NuhaminNunu-b2k]

We learn e and z as cis and trans

[@ProfessorDaveExplains]

That's different terminology, cis and trans are relative, E and Z are absolute.

[@johnnyhoran9369]

Three weeks too late, sadly :(

[@PunmasterSTP]

I’m sorry to hear that! How did the rest of your studies go?

[@johnnyhoran9369]

@@PunmasterSTP I'm afraid you're three years too late, sadly :(

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@@johnnyhoran9369 I'm very sorry to hear that. I hope that you have been doing well since then, whether in or out of school.

[@anilkumarsharma1205]

what happened if we use very high frequency distraction so carbon nano particles leave the place and we got pure carbon

[@patrickbateman2739]

So Z and E are basically cis and trans

[@ProfessorDaveExplains]

no cis and trans are relative terms. like you couldn't refer to a tetrasubstituted alkene as cis or trans.

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[@jjbelcastro7998]

z Zame Zide!