Visible-Light-Induced Nickel-Catalyzed P(O)–C(sp<sup>2</sup>) Coupling Using Thioxanthen-9-one as a Photoredox Catalysis
作者:Da-Liang Zhu、Shan Jiang、Qi Wu、Hao Wang、Lu-Lu Chai、Hai-Yan Li、Hong-Xi Li
DOI:10.1021/acs.orglett.0c03892
日期:2021.1.1
developed for photocatalytic P(O)–C(sp2) coupling of (hetero)aryl halides with H-phosphine oxides or H-phosphites under the irradiation of visible light or sunlight. The thioxanthen-9-one/nickel dual catalysis mediates this phosphonylation to give arylphosphine oxides and arylphosphonates in moderate to excellent yields. This transformation is widely tolerant to a range of functional groups and proceeds
Decarbonylative C–P Bond Formation Using Aromatic Esters and Organophosphorus Compounds
作者:Ryota Isshiki、Kei Muto、Junichiro Yamaguchi
DOI:10.1021/acs.orglett.8b00080
日期:2018.2.16
Ni-catalyzed C–P bond formation was achieved using aromatic esters as unconventional aryl sources. The key to success was the use of a thiophene-based diphosphine ligand (dcypt). Several aromatic esters including heteroaromatics can be coupled with phosphine oxides and phosphates, providing aryl phosphorus compounds. The synthetic utility of the method was demonstrated by application of the present
Ni-catalyzed construction of C–P bonds from electron-deficient phenols via the in situ aryl C–O activation by PyBroP
作者:Yu-Long Zhao、Guo-Jie Wu、Fu-She Han
DOI:10.1039/c2cc31718d
日期:——
The CâP bond forming reaction using electron-deficient phenol substrates was considerably challenging. Herein, we present a new protocol that allows for one-pot construction of CâP bonds via the cross-coupling of phenols and phosphine oxide or phosphite in the presence of a nickel catalyst.
A mechanistic insight into the chemoselectivity of the reaction between 3-phenyl-2-propynenitrile, secondary phosphine oxides and pyridinoids
作者:Pavel A. Volkov、Nina K. Gusarova、Kseniya O. Khrapova、Anton A. Telezhkin、Alexander I. Albanov、Sergey F. Vasilevskiy、Boris A. Trofimov
DOI:10.1016/j.mencom.2021.09.026
日期:2021.9
phosphine oxides and pyridinoids have been implemented and studied. Pyridine and isoquinoline react with propynenitrile and phosphine oxides at room temperature according to the N-vinylation/C-phosphorylation scheme to afford (Z)-N-(2-cyano-1-phenyl)ethenyl phosphoryl-1,4-dihydropyridines or -1,2-dihydroiso quinolines. In the case of pyridine on heating (80–85 °°°C), the reaction gives 4-phosphorylpyridines
Lanthanide (Ln3+) complexes composed of luminescent Eu3+ complex and joint metal blocks (Al3+, Zn2+ and Pd2+ complexes) are reported. The Eu3+ complexes [Eu(hfa)3(dppy)2PdCl2]n (Eu-Pd), [Eu(hfa)3(dppy)2ZnCl2]n (Eu-Zn) and [Eu(hfa)3(dppy)4AlCl3]n (Eu-Al) (hfa: hexafluoroacetylacetonato, dppy: 4-pyridyldiphenylphosphine oxide) were synthesized by the complexation of [Eu(hfa)3(H2O)2] with [MCln(dppy)m]