Abstract
A novel calix(4)arene 3 was synthesized. The experimental results show that the reactions of O,O-dialkylphos- phonates and diaryl(alkyl) disulfides proceed efficiently in the presence of calix(4)arene 3 (5.0 mol%) and KOH (20 mol%), affording O,O-dialkyl-S-aryl(alkyl)phosphoroselenoates in good to excellent yields. The yields of desired products do not re- duce after recycling for 6 times of calix(4)arene 3. Hence, a convenient and efficient method for the preparation of O,O-dial- kyl-S-aryl(alkyl)phosphoroselenoates was provided, avoiding the use of some foul and toxic reagents. Keywords novel calix(4)arene; diaryl(alkyl) disulfide; O,O-dialkylphosphonate; O,O-dialkyl-S-aryl(alkyl)phosphoro- selenoate
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