[lutesium]

As far as I know these reagents are widely used in Vilsmeier - Haach reaction!!!

Chemical reaction of a substituted amide with phosphorus oxychloride and an activated arene to produce an aryl aldehyde or ketone the reaction of a substituted amide with phosphorus oxychloride gives a substituted chloroiminium ion, also called the Vilsmeier reagent. The initial product is an iminium ion  which is hydrolyzed to the corresponding aromatic ketone or aldehyde.


Lutesium...

[Kryolith]

So what?

btw.: The name is Vilsmeier-Haack

[lutesium]

I'm really too sorry because I wrote this in reponse to an other post can you delete it please mod???