Calix[4]arene-assisted KOH-catalyzed synthesis of O,O-dialkyl-Se-aryl phosphoroselenoates.

A convenient and efficient method for the synthesis of O,O -dialkyl- Se -aryl phosphoroselenoates is described via a one pot reaction of diaryl diselenide and O,O -dialkylphosphonate catalyzed by KOH assisted by a co-catalyst of calix[4]arene 3 . The calix[4]arene 3 can be recycled for five times with good yields of the desired products for the reaction. This protocol provide a simple and efficient method for the synthesis of O,O -dialkyl- Se -aryl phosphoroselenoates, avoiding the use of toxic reagents and expensive catalysts. [ABSTRACT FROM AUTHOR]