Diverse Synthesis of Triarylselenonium Salts and <i>o</i>‑(Alkoxy)aryl Aryl Selanes via Insertion of Benzyne into the SeO Bond

An insertion of benzyne into the SeO bond has been realized. In this reaction, two types of compounds containing selenium could be synthesized from different substrates. When diaryl selenium oxides were used, triarylselenonium salts were furnished, while o-(alkoxy)phenyl phenyl selanes could be produced from aryl alkyl selenium oxides