%0 Journal Article %A Macías Benítez, Pablo %A Sierra Padilla, Alfonso %A Jiménez Tenorio, Manuel %A Moreno Dorado, Francisco Javier %A Guerra Martínez, Francisco Miguel %T Copper-Catalyzed Microwave-Expedited Oxyphosphorylation of Alkynes with Diethyl Phosphite and t-Butyl Hydroperoxide Synthesis of Densely Functionalized Phosphonylated Indenones %D 2021 %@ 1520-6904 %U http://hdl.handle.net/10498/33913 %X Treatment of alkynes with diethyl phosphite and t-butyl hydroperoxide in the presence of [Cu(MeCN)4]BF4 under microwave irradiation produced the oxyphosphorylation of the triple bond, giving rise to the corresponding β-ketophosphonates in moderate-to-good yields. When the triple bond was conjugated to a carbonyl group bearing an aromatic ring, it led to the cyclization of the resulting ketone intermediate, producing eventually different phosphonylated indenones. %K copper %K catalyzed %K microwave %K expedited %K oxyphosphorylation %K alkyne %K phosphite %K hydroperoxide %K phosphonylated %K indenone %K preparation %K derivatization %~ Universidad de Cádiz