Sciencemadness Discussion Board

HBr in diazotation

Arbacluce - 19-12-2015 at 13:14

Hi

I have a question, in diazotation is it possible to replace HCl with HBr? I want to make 2-BROMAPROPANOIC ACID by this reaction http://www.orgsyn.org/demo.aspx?prep=cv8p0119 . Can I use HBr instead of HCl?

Treating lactic acid with HBr will give a good yield?

[Edited on 19-12-2015 by Arbacluce]

[Edited on 19-12-2015 by Arbacluce]

Etaoin Shrdlu - 19-12-2015 at 14:42

Lactic acid has no amine functionality, why would this synthesis be related?

Arbacluce - 19-12-2015 at 14:55

I was asking if treating lactic acid with HBr will give me 2-BROMAPROPANOIC by replacing -OH with -Br with good yield.

Crowfjord - 19-12-2015 at 15:01

HBr will work in the diazotation. I'm not so sure about the lactic acid version.

Etaoin Shrdlu - 19-12-2015 at 15:16

Quote: Originally posted by Arbacluce  
I was asking if treating lactic acid with HBr will give me 2-BROMAPROPANOIC by replacing -OH with -Br with good yield.

http://www.sciencemadness.org/talk/viewthread.php?tid=3860

https://books.google.com/books?id=WdxBAQAAMAAJ&pg=PA733&...