Sciencemadness Discussion Board

Mg instead of Al in amalgamations?

Justin - 2-11-2010 at 20:26

Would Mg turnings subsitute for Al in traditional Al/Hg reductions??

kclo4 - 2-11-2010 at 22:33

Quote:
Magnesium amalgam

Mainly used for removing traces of water from alcohols, which are distilled from it after refluxing.


It apparently does something and is reactive towards water.

DJF90 - 3-11-2010 at 05:40

Magnesium amalgam is used sometimes in organic syntesis, the immediate case that comes to mind is in the Pinacol coupling. I'm sure you could probably find an overview in a book like Feiser or eEROS.

zed - 3-11-2010 at 05:42

Maybe. Seems like I've heard of it before. Try the search engine.

Still, Aluminum foil is a lot cheaper, and easier to come by....than Mg turnings.

Nicodem - 3-11-2010 at 10:26

Quote: Originally posted by Justin  
Would Mg turnings subsitute for Al in traditional Al/Hg reductions??

The question does not make much sense as it is now. Magnesium will not necessarily reduce the same functional groups under the same conditions as aluminium would, and vice versa.