Sciencemadness Discussion Board

New organic chemistry youtube video: Making isobutyl bromide

Cou - 25-12-2020 at 01:58

https://www.youtube.com/watch?v=IE2yLWxwdT0

I made isobutyl bromide from isobutyl alcohol, red phosphorus, and elemental bromine

[Edited on 12-25-2020 by Cou]

ChemichaelRXN - 25-12-2020 at 05:49

Nice work! If you want some sulfurol for free to halogenate, let me know. You can convert it to “bromethiazole” with that method.

Cou - 25-12-2020 at 11:48

Quote: Originally posted by ChemichaelRXN  
Nice work! If you want some sulfurol for free to halogenate, let me know. You can convert it to “bromethiazole” with that method.

Im up for that. Its a primary alcohol with no possible rearrangement so it could be brominated with HBr

ChemichaelRXN - 25-12-2020 at 12:33

No problem, I messaged you.

Also I tried the sulfurol and HBr reaction in the past, but what I got unfortunately has unreacted sulfurol in it. I have a lot more sulfurol to play around with though. I am trying to modify the method and will try a reactor under pressure next for an experiment. (Using Hydrothermal Autoclave Reactor with PTFE Chamber)

Happy Holidays!


[Edited on 25-12-2020 by ChemichaelRXN]

Cou - 25-12-2020 at 12:41

Quote: Originally posted by ChemichaelRXN  
No problem, I messaged you.

Also I tried the sulfurol and HBr reaction to brominate it in the past, but there is unfortunately unreacted sulfurol in it. I am trying to modify the method and will try a reactor under pressure next. (Using Hydrothermal Autoclave Reactor with PTFE Chamber)

Happy Holidays!

[Edited on 25-12-2020 by ChemichaelRXN]


In that case, the phosphorus tribromide method is better because using an excess of phosphorus and bromine will completely brominate the alcohol. PBr3 is used when the alcohol and bromide are difficult to separate, so the reaction needs to go to completion