Copper-Catalyzed Microwave-Expedited Oxyphosphorylation of Alkynes with Diethyl Phosphite and <i>t</i>-Butyl Hydroperoxide Synthesis of Densely Functionalized Phosphonylated Indenones
作者:Pablo Macías-Benítez、Alfonso Sierra-Padilla、Manuel J. Tenorio、F. Javier Moreno-Dorado、Francisco M. Guerra
DOI:10.1021/acs.joc.1c01763
日期:2021.12.3
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
在微波辐射下,在 [Cu(MeCN) 4 ]BF 4存在下,用亚磷酸二乙酯和叔丁基过氧化氢处理炔烃产生三键的氧磷酸化,从而以中等至良好的产率产生相应的 β-酮膦酸酯. 当三键与带有芳香环的羰基共轭时,会导致生成的酮中间体环化,最终产生不同的膦酰化茚酮。