Aryl ether functionality is a prevalent structural motif found in many natural products and in biologically active compounds. 1 In the past few decades, several new methods for the preparation of aryl-aryl 2 and aryl–alkyl ethers have been described. While significant progress has been made in the field of metal-catalyzed reaction (mostly Cu and Pd), nucleophilic aromatic substitution (S N Ar) of aryl fluorides by alkoxides remains a highly efficient and useful strategy for the ...