1225-16-7Relevant articles and documents
A novel structural type of conformationally fixed, mixed phosphonium-iodonium ylides based on phenoxaphosphinine
Nenashev,Vinogradov,Mironov,Podrugina
, p. 2333 - 2339 (2020)
A synthetic approach to a novel type of phosphonium and mixed phosphonium-iodonium ylides containing a conformationally fixed phosphonium fragment is developed. New representatives of these families of chemical compounds based on cyclic phenoxaphosphinine
COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
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Paragraph 0235; 0240-0243, (2018/02/10)
The present specification relates to a compound represented by chemical formula 1, and an organic light-emitting device comprising the same. The compound of the present specification may be used as a material for an organic material layer in an organic light-emitting device to improve efficiency, low driving voltage, and/or lifetime characteristic of the organic light-emitting device. Further, one embodiment of the present specification provides an organic light-emitting device which comprises: a first electrode; a second electrode facing the first electrode; and one or more organic material layers disposed between the first electrode and the second electrode, wherein at least one of the organic material layers comprises the compound of chemical formula 1.COPYRIGHT KIPO 2017
Design, testing and kinetic analysis of bulky monodentate phosphorus ligands in the mizoroki-heck reaction
Dodds, Deborah L.,Boele, Maarten D.K.,Van Strijdonck, Gino P.F.,De Vries, Johannes G.,Van Leeuwen, Piet W.N.M.,Kamer, Paul C. J.
experimental part, p. 1660 - 1671 (2012/05/19)
A series of new monodentate phosphane ligands 2 have been evaluated in the Mizoroki-Heck arylation reaction of iodobenzene and styrene and compared with our previously reported ligands, 1, 3 and 4. The concept of rational ligand design is discussed, and we describe how the performance of this new ligand family could be predicted. Employing our best ligand, 3,3'-di-tert-butyl-5,5'- dimethoxybiphenyl-2,2'-diyl diisopropylphosphoramidite (3b), we explored the scope of the reaction with regards to solvent and the substrate. We also investigated the electronic dependence of the reaction by analysing the relationship between the rate and Hammett constant. Sufficient steric bulk is required to enforce the catalytic reaction to proceed through the mono-coordinated palladium species, thereby increasing its reactivity. The electronic properties determine the concentration of the active species from the monomer dimer equilibrium and their intrinsic reactivity. The cyclic phosphoramidite 3b provides an optimum in both properties within the systems studied, resulting in a rate limiting migratory insertion step. Copyright
