The Vilsmeier reaction achieves the same effect as this reaction by proceeding through an iminium intermediate. It is replaced by the Gatterman-Koch reaction with carbon monoxide, and a two-step process beginning with it replaces a related reaction that, unless the starting 
The Vilsmeier reaction achieves the same effect as this reaction by proceeding through an iminium intermediate. It is replaced by the Gatterman-Koch reaction with carbon monoxide, and a two-step process beginning with it replaces a related reaction that, unless the starting material is tertiary, will lead to rearrangement. Moreover, that related reaction generates a more reactive product, leading to polyalkylation, so instead this reaction is followed by Clemmensen or Wolff-Kishner reduction. FTP, identify this reaction, catalyzed by Lewis acids like aluminum trichloride, a substitution reaction that links a terminal carbonyl compound to a benzene ring.
The Vilsmeier reaction achieves the same effect as this reaction by proceeding through an iminium intermediate.
{Friedel}-{Crafts} acylation