Rapid Cesium Fluoride Catalyzed Synthesis of 5-Aryloxy-1-phenyl-1Htetrazoles via Nucleophilic Aromatic Substitution

A nucleophilic aromatic substitution via a new and facile cesium fluoride catalyzed synthetic approach to get 5-aryloxy-1-phenyl-1H-tetrazoles was developed. Dual usage of cesium fluoride as a nucleophilic catalyst as well as an electrophilic catalyst afforded the desired products at room temperature in a short reaction time without purification in high yields. This simple but useful reaction may be a rapid and reliable strategy for the synthesis of tetrazolyl ethers.