One-pot synthesis of N -arylated benzotriazoles and benzotriazinones via in situ diazotization and aryne trapping

from 2-(trimethylsilyl)aryltriflates in the presence of CsF. The methodology exhibits broad functional-group tolerance and was successfully applied to 47 substrates, affording yields in the range of 60-85%. Furthermore, gram-scale synthesis highlights the operational simplicity and practical utility of this approach.