“…Ag-catalyzed reactions are powerful tools for the formation of carbon–carbon and carbon–heteroatom bonds and are attracting increasing attention in modern organic chemistry. 17 Among these, Liu and co-workers developed Ag-catalyzed three-component reactions for C–Se bond formation using an arylboronic acid, Se powder, and an epoxide or acetylene derivative; 18–21 the reactions with epoxides catalyzed by AgNO 3 afford β-hydroxyselenides through epoxide ring-opening and selenation (Scheme 1a). 18 Reactions with 2-alkynyl-anisoles, -thioanisoles, -aryl esters, and alkynone O -methyloximes catalyzed by AgNO 3 and AgNO 2 gave furan and thiophene derivatives, isochromenones, and isoxazoles through the tandem cyclization and selenation (Scheme 1b and c).…”