Solvent-Free Synthesis of 5-Alkenyl-2,2-pentamethylene-1,3-dioxane-4,6-diones under Ultrasonic Irradiation with CePW 12O 40 as Catalyst
Xu Zhaohui, Lin Chunhua
Chin. J. Org. Chem. . 2013, (07): 1540 -1544 .  DOI: 10.6023/cjoc201212039