phosphite ligands
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2021 ◽  
Author(s):  
Yuchao Deng ◽  
Xiaofang Liu ◽  
Baiyin Wei ◽  
Zhimin Zhou ◽  
Kaimin Hua ◽  
...  

Abstract Organofluorine compounds often exhibit unique catalytic capabilities with novel structural scaffold, reactivity and mechanisms. Herein, we report a Rh-catalyzed hydroformylation under mild conditions using monodentate phosphite ligands P(OCH2CF3)3 (TTFP) and P(OCH2CF2CH3)3 (TDFP). The ligand were designed with the principle that the inclusion of fluorine-rich group can significantly change the physical and chemical properties of the complex through H•••F hydrogen bonds, the existence of which has been confirmed by crystal-packing studies. These monodentate phosphite ligands self-assemble to form bidentate ligands through C–H•••F–C interactions, and catalysts based on these ligands deliver extremely high regioselectivities in hydroformylation. Aldehydes were formed with up to 92% chemoselectivity, with linear aldehydes formed in high regioselectivity (n:iso=28/1) under a syngas pressure of only 2 atm.


2020 ◽  
Vol 2020 (20) ◽  
pp. 3071-3076
Author(s):  
Sophie H. Gilbert ◽  
José A. Fuentes ◽  
David B. Cordes ◽  
Alexandra M. Z. Slawin ◽  
Matthew L. Clarke

2020 ◽  
Vol 505 ◽  
pp. 119463
Author(s):  
Oleg S. Chudin ◽  
Victor V. Verpekin ◽  
Alexander A. Kondrasenko ◽  
Galina V. Burmakina ◽  
Dmitry A. Piryazev ◽  
...  

2020 ◽  
Vol 85 (7) ◽  
pp. 4730-4739 ◽  
Author(s):  
Maria Biosca ◽  
Pol de la Cruz-Sánchez ◽  
Oscar Pàmies ◽  
Montserrat Diéguez
Keyword(s):  

2019 ◽  
Vol 91 (1) ◽  
pp. 3-15 ◽  
Author(s):  
Nuria Llorente ◽  
Héctor Fernández-Pérez ◽  
José L. Núñez-Rico ◽  
Lucas Carreras ◽  
Alicia Martínez-Carrión ◽  
...  

Abstract Over several years, our research team has contributed to ligand design for metal-catalyzed stereoselective transformations. This has been achieved with the synthesis and application to organic transformations of interest of an array of structurally diverse P-containing ligands. These range from highly modular enantiopure phosphine–phosphite ligands to supramolecularly regulated enantioselective phosphorus-based catalysts. Our research in supramolecular interactions has also led to the discovery of an unprecedented halogen-bonded rhodium-catalyst.


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