Author/Authors :
Avalos، نويسنده , , Mart??n and Babiano، نويسنده , , Reyes and Bravo، نويسنده , , Jose Carlos Rodriguez-Cabello، نويسنده , , Noem?? and Cintas، نويسنده , , Pedro and Hursthouse، نويسنده , , Michael B and Jiménez، نويسنده , , José L and Light، نويسنده , , Mark E and Palacios، نويسنده , , Juan C، نويسنده ,
Abstract :
Diels–Alder cycloadditions of an o-quinone monoketal with different furans, under argon, are considerably accelerated by ultrasonic irradiation. Moreover, these sonochemical reactions are regiospecific and proceed with a high diastereoselectivity. The results can be ascribed to the chemical role of ultrasounds which may favor a single electron transfer mechanism with respect to ionic or nonpolar pathways.
Keywords :
Diels–Alder reactions , cation radicals , Furans , o-quinones
