Common and systematic naming: iso-, sec-, and tert- prefixes | Organic chemistry | Khan Academy

Common and systematic naming - Iso, Sec and Tert prefixes. Created by Sal Khan.

Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules!

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[BeautiFuFu]

I just want to let you know that my OChem professor links your videos on his syllabus as "optional but recommended"....and it should be listed as MANDATORY. I just have to say...thank you...alot

[Desiparth]

This is why I dont like one on one tutors when the internet has so much potential to give us everything we need. People need to stop going on the internet just for facebook and social media or checking emails. It can give you everything YOU NEED. Khanacademy is by far the best instructional videos I have ever seen,

[jetpaq]

Sal, You know entirely too much about Everything!lol you got my vote for president sir..we need someone like you that knows how to think, to get us out of this mess!

[bandperson]

I understood this faster than the hour lecture I had. this guy is amazing!

[schezanmansuri]

I am studying first year science(including) right now. Thanks a lot sir . I never understood chemistry in my class . And organic was just out of my head

[israeldjd]

you gotta be the coolest teacher, your voice projection your clearness and how you catch your own minimal errors its just so easy to learn from you!! I highly appreciate you and your courses (I've been following you ever since bio and physio!!! :-)

[felicity]

This is great. I finally understand. I used to get these kind of problems wrong and I couldn't understand why.

[TwistedPencils]

I honestly don't know why teachers can't be as good as you.

[deborah]

Thank you. I for some reason could not understand how to come up with the common names. This is the best video explaining it.

[imranhussain]

your videos beat crashcourse by ten-fold. and you teach better than my chemistry teacher!! keep up the good work!!

[alext]

At about 7:00 the sec and tert are for secondary and tertiary respectively. Would that help to remember?

[gabccar]

Sorry for my english. I'm brazilian, but I will try to explain.
The Iso has the same extreme in both sides(CH3, in this case).
The sec happens when the first carbon from the alkyl group bonds with 2 other carbons. That's what I understand. Thanks to Steve for also think a good idea to contribute with education.

[morsmb]

wow I must tell u that your voice make me learn! you are so charismatic!
so thanx! you are my best youtube teacher

[SuperHoldenC]

thanks for this needed a bit of review

[kachingaaa]

I love crash course but it's helpful with the basics only (no org chem unfortunately :( ), I mean, only Hank would go and open the lab shower for us to see ;)

[knowledgeisgold]

I am in 6th grade but I still understand the organic chemistry playlist! Thanks so much Mr.Khan!

[FreeJulianAssange]

Common Nomenclature - Meth, Propyl, Butyl, Isobutyl

Systematic Nomenclature- Ethyl, Isopropyl, Butyl, Sec-butyl, Tert-butyl

[lukeskelton]

tert.. tert, , , , tert,

:) brilliant as always

[Alterverse]

you wrote "isoBUTLYcyclopentane" there :)))

this is a great project, thank you.

[bibo]

I'm not a huge fan of those line diagrams, I prefer writing the carbons out- don't know why but it makes more sense to me that way.