<italic>p</italic>-Toluenesulfonic acid-promoted autocatalytic hydrolyzation of 1-tosyl-1,2,3-triazoles.

The first example of autocatalytic hydrolyzation of 4-aryl-1-tosyl-1,2,3-triazoles induced by <italic>p</italic>-toluenesulfonic acid was reported, providing an effective and metal-free synthetic approach to deliver a broad range of new 4-aryl-2<italic>H</italic>-1,2,3-triazoles in good yields. The kinetic profile of this hydrolyzation suggested that this reaction has exponential autocatalytic behavior. [ABSTRACT FROM AUTHOR]