Nonbenzenoid aromaticity of 1-phosphafulvenes: synthesis of phosphacymantrenes

2021 ◽  
Author(s):  
Yanjie Liu ◽  
Rongqiang Tian ◽  
Zheng Duan ◽  
François Mathey
Keyword(s):  
Organophosphorus Chemistry ◽  
Manganese Carbonyls

The nonbenzenoid aromaticity of 1-phosphafulvenes were revealed by the coordination with manganese carbonyls. The results highlight the analogy between phosphorus and carbon in low-coordinate organophosphorus chemistry.

scholarly journals Microwaves as “Co-Catalysts” or as Substitute for Catalysts in Organophosphorus Chemistry

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1196
Author(s):  
György Keglevich
Keyword(s):  
Coupling Reaction ◽  
Diels Alder ◽  
Typical Case ◽  
Conventional Heating ◽  
Phosphine Oxides ◽  
Phosphonic Acids ◽  
Co Catalysts ◽  
Mw Irradiation ◽  
Organophosphorus Chemistry ◽  
Hydrolysis Of

The purpose of this review is to summarize the importance of microwave (MW) irradiation as a kind of catalyst in organophosphorus chemistry. Slow or reluctant reactions, such as the Diels-Alder cycloaddition or an inverse-Wittig type reaction, may be performed efficiently under MW irradiation. The direct esterification of phosphinic and phosphonic acids, which is practically impossible on conventional heating, may be realized under MW conditions. Ionic liquid additives may promote further esterifications. The opposite reaction, the hydrolysis of P-esters, has also relevance among the MW-assisted transformations. A typical case is when the catalysts are substituted by MWs, which is exemplified by the reduction of phosphine oxides, and by the Kabachnik–Fields condensation affording α-aminophosphonic derivatives. Finally, the Hirao P–C coupling reaction may serve as an example, when the catalyst may be simplified under MW conditions. All of the examples discussed fulfill the expectations of green chemistry.

The role of organonickel reagents in organophosphorus chemistry

2021 ◽  
Vol 438 ◽  
pp. 213889
Author(s):  
Zufar N. Gafurov ◽  
Alexey A. Kagilev ◽  
Artyom O. Kantyukov ◽  
Oleg G. Sinyashin ◽  
Dmitry G. Yakhvarov
Keyword(s):  
Organophosphorus Chemistry
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