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.
Preparations of N- and P-substituted acetylenes under metal-free conditions
作者:Hong Chen、Qingjuan Zheng、Wanrong Dong、Zhihong Peng、Delie An
DOI:10.1080/00397911.2016.1198812
日期:2016.9.1
ABSTRACT An efficient strategy towards triazole- or phosphine-oxide-substituted alkynes with the assistance of strong base LiHMDS is described. The facile and practical reaction took place from easily prepared substrates in a one-pot manner without participation of any transition metal catalysts or ligands, exhibiting good functional groups tolerance (up to 37 examples) and high efficiency (up to 90%
A convenient synthesis of β-ketophosphine oxides via Ag-mediated oxidative phosphorylation of α-bromostyrenes
作者:Dae Young Kim
DOI:10.1080/00397911.2023.2275638
日期:2023.12.17
Ag-mediated radical phosphorylation of α-bromostyrenes with diphenylphosphine oxides is described. This approach represents a convenient method for the preparation of β-ketophosphine oxides with mo...
Copper-Catalyzed Aerobic Oxidative/Decarboxylative Phosphorylation of Aryl Acrylic Acids with P(III)-Nucleophiles
作者:Biquan Xiong、Lulu Si、Longzhi Zhu、Yu Liu、Weifeng Xu、Ke-Wen Tang、Shuang-Feng Yin、Peng-Cheng Qian、Wai-Yeung Wong
DOI:10.1021/acs.joc.3c01238
日期:2023.9.1
A copper-catalyzed aerobic oxidative/decarboxylative phosphorylation of aryl acrylic acids with P(III)-nucleophiles via the Michaelis–Arbuzov rearrangement for the synthesis of β-ketophosphine oxides, β-ketophosphinates, and β-ketophosphonates is reported. The present reaction could be conducted effectively without the use of a ligand and a base. Various kinds of aryl acrylic acids and P(III)-nucleophiles