
Zeitschrift fur Naturforschung, B: Chemical Sciences p. 448 - 463 (2006)
Update date:2022-08-11
Topics:
Kantlehner, Willi
Wezstein, Markus
Kre?, Ralf
Zschach, Franziska
Vetter, Jens
Ziegler, Georg
Mezger, Jochen
Stoyanov, Edmont V.
Goeppert, Alain
Sommer, Jean
The reagent system formed from tris(dichloromethyl)amine (5) and aluminium chloride allows the formylation of aromatic compounds. The scope of the method is comparable with that of the Olah formylation and the Gro?-Rieche procedure, since benzene and even chlorobenzene can be formylated. One formyl group is transferred from 5 to the aromatic nucleus. In order to find optimal reaction conditions, the molar amounts of aromatic compounds, 5 and aluminum chloride were varied as well as reaction temperatures and solvents. The activation of 5 with other Lewis acids is also described.
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