Sciencemadness Discussion Board

Mysterious reaction

Gustavo_Marzullo - 18-9-2017 at 13:41

Does somebody know what kind of reaction is going on here? At a first glance I thought that was a Hoesch reaction but it doesn't use paraformaldehyde. It has everything for a Hoesch reaction but has the paraformaldehyde as a intruder. Maybe it's two reactions yielding the same product? Maybe it's a variation of the Vilsmeier–Haack reaction? What do you think, guys?

The Strange Reaction.png - 43kB

Crowfjord - 18-9-2017 at 14:11

Like the Vilsmeier-Haack, it is a formylation. This looks like a variant of the magnesium-mediated formylation of phenol, albeit less amateur friendly due to the acetonitrile and triethylamine.

[Edited on 18-9-2017 by Crowfjord]