Abstract
<jats:title>Abstract</jats:title> <jats:p>The most striking feature of 2,4,6‐trichlorophenyl formate and N‐formylsaccharin compared to other carbon monoxide (CO) surrogates is the mild reaction conditions required for CO generation. In the initial study on the catalytic aryloxycarbonylation using 2,4,6‐trichlorophenyl formate, the reaction of iodoarenes proceeded smoothly at room temperature. T. Okamoto and coworkers used 2,4,6‐trichlorophenyl formate to synthesize functional molecules. Since aryl esters, products of catalytic aryloxycarbonylation, are electronically activated toward a nucleophilic attack, various carbonyl compounds, such as esters, amides, and thioesters are obtained by the reaction with nucleophiles. It is feasible to perform the interor intramolecular nucleophilic substitution after the aryloxycarbonylation in a one‐pot procedure. Installation of a one‐carbon functional group using a CO surrogate is an attractive method by which to form activated aryl esters and acyl fluorides and subsequently to generate other carboxylic acid derivatives by nucleophilic substitution.</jats:p>