80679-26-1Relevant academic research and scientific papers
Silver-mediated direct phosphorylation of benzothiazoles and thiazoles with diarylphosphine oxides
Zhang, Hui-Jun,Lin, Weidong,Wu, Zhengjian,Ruan, Wenqing,Wen, Ting-Bin
supporting information, p. 3450 - 3453 (2015/03/04)
A silver nitrate-mediated, efficient phosphorylation of benzothiazoles and thiazoles with diarylphosphine oxides was developed. This process provides a convenient route for the synthesis of a variety of 2-diarylphosphoryl benzothiazoles and thiazoles which are promising precursors of a series of hemilabile P,N-ligands with small bite angles. This journal is
Synthesis, structure, and characterization of dinuclear copper(I) halide complexes with P^N ligands featuring exciting photoluminescence properties
Zink, Daniel M.,B?chle, Michael,Baumann, Thomas,Nieger, Martin,Kühn, Michael,Wang, Cong,Klopper, Wim,Monkowius, Uwe,Hofbeck, Thomas,Yersin, Hartmut,Br?se, Stefan
, p. 2292 - 2305 (2013/04/10)
A series of highly luminescent dinuclear copper(I) complexes has been synthesized in good yields using a modular ligand system of easily accessible diphenylphosphinopyridine-type P^N ligands. Characterization of these complexes via X-ray crystallographic studies and elemental analysis revealed a dinuclear complex structure with a butterfly-shaped metal-halide core. The complexes feature emission covering the visible spectrum from blue to red together with high quantum yields up to 96%. Density functional theory calculations show that the HOMO consists mainly of orbitals of both the metal core and the bridging halides, while the LUMO resides dominantly on the heterocyclic part of the P^N ligands. Therefore, modification of the heterocyclic moiety of the bridging ligand allows for systematic tuning of the luminescence wavelength. By increasing the aromatic system of the N-heterocycle or through functionalization of the pyridyl moiety, complexes with emission maxima from 481 to 713 nm are obtained. For a representative compound, it is shown that the ambient-temperature emission can be assigned as a thermally activated delayed fluorescence, featuring an attractively short emission decay time of only 6.5 μs at φPL = 0.8. It is proposed to apply these compounds for singlet harvesting in OLEDs.
(tmp)2Zn·2 MgCl2·2 LiCl: A chemoselective base for the directed zincation of sensitive arenes and heteroarenes
Wunderlich, Stefan H.,Knochel, Paul
, p. 7685 - 7688 (2008/09/18)
(Chemical Equation Presented) Positive zincing: A wide range of polyfunctional aryl and heteroaryl zinc reagents were efficiently prepared in THF by direct zincation using (tmp)2Zn·2 MgCl 2·2 LiCl (1), an exceptionally active base. Ester and cyano functions as well as aldehydes and nitro groups are tolerated. dba = dibenzylideneacetone, tmp = 2,2,6,6-tetramethylpiperidide.
Synthesis and Coordinating Properties of Heterocyclic-Substituted Tertiary Phosphines
Moore, Stephen S.,Whitesides, George M.
, p. 1489 - 1493 (2007/10/02)
Tris(thiazol-2-yl)phosphine, 2,has been prepared by the reaction of corresponding heteroaryl organolithium reagent and PCl3.Attempts to prepare other heteroaryl-substituted phosphines, such as tris(benzothiazol-2-yl)-(3) and tris(1-methylimidazol-2-yl)phosphines (6), using this procedure, were unsuccessful.Heteroaryltrimethylsilanes, readily accessible from the reaction between a heteroaryl organometallic reagent and chlorotrimethylsilane (CH3SiCl), afford the desired heteroaryl-substituted phosphines when treated with PCl3.The heteroaryl-silicon bonds of this silanes also undergo facile electrophilic cleavage by (C6H5)PCl2 and (C6H5)2 PCl and yield the unsymmetrically substituted phosphines.The phosphines obtained in this work react readity with (1,5-cyclooctadiene)dimethylplatinum(II) and generate cis-dimethylbis(phosphine)platinum(II) complexes in which the potentially multidenate ligands are exclusively monodentate.The coordinated phosphines are bound to platinum through the phosphorus atom of the ligand.
