Photoinduced Transition-Metal-Free Cross-Coupling of Aryl Halides with H-Phosphonates
作者:Huiying Zeng、Qian Dou、Chao-Jun Li
DOI:10.1021/acs.orglett.8b04081
日期:2019.3.1
Photoinduced transition-metal- and photosensitizer-free cross-coupling of arylhalides (including Ar–Cl, Ar–Br, and Ar–I) with H-phosphonates (including dialkyl phosphonates and diarylphosphine oxides) is reported. Various functional groups were tolerated, including ester, methoxy, dimethoxy, alkyl, phenyl, trifluoromethyl, and heterocyclic compounds. This simple and green strategy provides a practical
We describe the direct synthesis of organophosphorus compounds from ubiquitous aryl and vinyl carboxylic acids via decarbonylative palladium catalysis. The catalytic system shows excellent scope and tolerates a wide range of functional groups (>50 examples). The utility of this powerful methodology is highlighted in the late-stage derivatization directly exploiting the presence of the prevalent carboxylic
Potent Reductants via Electron-Primed Photoredox Catalysis: Unlocking Aryl Chlorides for Radical Coupling
作者:Nicholas G. W. Cowper、Colleen P. Chernowsky、Oliver P. Williams、Zachary K. Wickens
DOI:10.1021/jacs.9b12328
日期:2020.2.5
productively engage aryl chlorides with reduction potentials hundreds of millivolts beyond the potential of Na0 in productive radical coupling reactions. The arylradicals produced via this strategy can be leveraged for both carbon-carbon and carbon-heteroatom bond-forming reactions. Through direct comparison, we illustrate the reactivity and selectivity advantages of this approach relative to electrolysis
[EN] PHOSPHOHISTIDINE AND PHOSPHOTYROSINE ANALOGUES<br/>[FR] ANALOGUES DE LA PHOSPHOHISTIDINE ET DE LA PHOSPHOTYROSINE
申请人:UNIV SHEFFIELD
公开号:WO2015033120A1
公开(公告)日:2015-03-12
The invention relates to phosphohistidine analogues. The invention also relates to antibodies that specifically bind to the analogues and methods of generating said antibodies. In one embodiment of the invention there is provided a phosphohistidine analogue of Formula V: (V) wherein W is selected from H, CO2H or CONH2; and X is selected from CH or N.
Catalyst-free phosphorylation of aryl halides with trialkyl phosphites through electrochemical reduction
作者:Shuai Wang、Cheng Yang、Shuo Sun、Jianbo Wang
DOI:10.1039/c9cc07069a
日期:——
A catalyst-free electrochemical cross-coupling reaction of aryl halides with trialkyl phosphite has been developed. This reaction proceeds in an undivided cell with a low-cost Ni anode and a graphite cathode under mild and neutral conditions. A wide range of functional groups are well-tolerated and the phosphorylated product can be obtained on the gram scale, showing that this transformation has the