Silver-Catalyzed Aerobic Oxidative Decarboxylative Coupling of Arylpropiolic Acids with<i>H</i>-Phosphine Oxides: Mild and Facile Synthesis of β-Oxophosphine Oxides
作者:Yao-Fu Zeng、Dong-Hang Tan、Wen-Xin Lv、Qingjiang Li、Honggen Wang
DOI:10.1002/ejoc.201500587
日期:2015.7
A silver-catalyzedoxidativedecarboxylativecoupling reaction of arylpropiolicacids with H-phosphine oxides by using air as the terminal oxidant was developed. The reaction proceeds smoothly under mild conditions to give β-oxophosphineoxides in moderate to good yields. Preliminary mechanistic studies were conducted.
A C(sp3)−H phosphorylation has been achieved via the iron‐catalyzedcross‐couplingreactions between 1,3‐dicarbonyl compounds and P(O)−H compounds involving C−C bond cleavages with air as the oxidant. This transformation provides a straightforward way to construct C(sp3)−P bonds, leading to the formation of β‐ketophosphine oxides in up to 93% yield with good functional group tolerance.