793-43-1Relevant academic research and scientific papers
Highly Efficient Solution-Processable Nanophosphor with Ambipolar Shell
Han, Chunmiao,Xie, Guohua,Xu, Hui
, p. 2971 - 2979 (2018)
Super-resolution display (SRD) is crucial to all super-resolution processing technologies for visualization terminals. Herein, as a proof-of-concept, an iridium-complexed nanoemitter, [Ir(CzPOPBI)3] (CzPOPBI=9,9′-(3,3′-(4-(1-(3-(4-(diphenylphos
Synthesis of tertiary phosphine oxides by alkaline hydrolysis of quaternary phosphonium zwitterions using excess t-BuOK and stoichiometric water
Zhong, Chun-Hong,Huang, Wenhua
supporting information, p. 1537 - 1546 (2021/01/07)
Hydrolysis of quaternary arylphosphonium zwitterions bearing COO? and those in situ generated from the corresponding salts bearing Ac or OH at the aryl ring by using excess t-BuOK and stoichiometric water affords tertiary arylphosphine oxides in moderate to excellent yield, in contrast to hydrolysis of these zwittertion or salts in aqueous NaOH that mainly provides phosphine oxides with the loss of the aryl group. Under the t-BuOK/water conditions, hydrolysis of carbonyl stabilized ylides Ph3P = CHCOR (R = Ph, Me, and OEt), which partially exist as phosphonium enolates, prefers to produce Ph2P(O)CH2COR. Further reduction of Ph2P(O)CH2COMe by PhSiH3 allows the preparation of Ph2PCH2COMe in 43% yield.
Phosphine boranes as less hydrophobic building blocks than alkanes and silanes: Structure-property relationship and estrogen-receptor-modulating potency of 4-phosphinophenol derivatives
Fujii, Shinya,Hashimoto, Yuichi,Matsumoto, Yuichiro,Saito, Hiroki
, (2020/01/28)
Increasing structural options in medicinal chemistry is important for the development of novel and distinctive drug candidates. In this study, we focused on phosphorus-containing functionalities. We designed and synthesized a series of phosphinophenol der
Visible-light-induced ligand-free RuCl3 catalyzed C-H phosphorylation in water
Gou, Xue-Ya,Zhang, Bo-Sheng,Wang, Xin-Gang,Shi, Wei-Yu,Liu, Hong-Chao,An, Yang,Zhang, Zhe,Liang, Yong-Min
supporting information, p. 4704 - 4707 (2020/05/22)
Visible-light-induced C-H phosphorylation of para-CAr-H and heteroarenes was realized using cost-effective RuCl3 as a catalyst. The reaction conditions are green and environmentally friendly, using water as a solvent at room temperature and without ligands. A broad range of highly functional organophosphorus compounds were obtained via a cross-dehydrogenation-coupling (CDC) reaction. In addition, we also proved that RuCl3 is a photocatalyst via its absorption spectrum and on/off light experiments.
Synthesis method of carbonate modified fluoride-free organic phosphine ligand
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Paragraph 0045; 0046; 0053; 0054, (2017/08/28)
The invention relates to the field of organic synthesis and provides a synthesis method of a carbonate modified fluoride-free organic phosphine ligand. The synthesis method comprises the following steps: preparing a Grignard reagent from the raw material p-bromoanisole or derivative thereof; enabling the Grignard reagent to react with a phosphorus source to generate a skeleton structure molecule with triphenylphosphine; and performing oxidation, demethylation, nucleophilic substitution and reduction to obtain a target molecular structure. The synthesis method has the following effects and benefits: a novel carbon dioxide-philic organic phosphine ligand is synthesized, the solubility of the phosphine ligand in supercritical CO2 is increased, and application of a fluoride-free phosphine ligand organic metal catalyst in supercritical CO2 is realized. Moreover, the organic carbonate compound is insoluble in a weakly (non-) polar organic solvent (such as alkane compounds), the property enables a phase splitting function of the carbonate modified fluoride-free organic phosphine ligand in the reaction system, and the recycling and reusing of the catalyst are realized.
A general strategy to add diversity to ruthenium arene complexes with bioactive organic compounds: Via a coordinated (4-hydroxyphenyl)diphenylphosphine ligand
Biancalana, Lorenzo,Batchelor, Lucinda K.,De Palo, Alice,Zacchini, Stefano,Pampaloni, Guido,Dyson, Paul J.,Marchetti, Fabio
supporting information, p. 12001 - 12004 (2017/09/25)
Esterification of (4-hydroxyphenyl)diphenylphosphine, coordinated to the [Ru(η6-p-cymene)Cl2] fragment, allows a series of bioactive carboxylic acids to be introduced directly into the organometallic molecule. Evaluation of the compounds on human ovarian cancer cells reveals synergistic enhancements in their antiproliferative activity relative to their bioactive organic and organometallic precursors.
Ternary donor-acceptor phosphine oxide hosts with peculiar high energy gap for efficient blue electroluminescence
Sun, Mingzhi,Zhu, Liping,Kan, Wenjing,Wei, Ying,Ma, Dongge,Fan, Xuefeng,Huang, Wei,Xu, Hui
, p. 9469 - 9478 (2015/09/15)
Ternary donor (D)-acceptor (A)-acceptor (A) molecules are commonly considered as low triplet (T1) energy systems for specific applications. In this work, exception to this behavior was observed in a triangle-shaped D-A-A molecule PCImbPO with unusually high triplet energy of 3.0 eV. Profiting from the enhanced D-A electronic coupling, electron injecting and transporting ability of PCImbPO was dramatically improved with negligible influences on its highest occupied molecular orbital (HOMO) characteristics. Its particular T1 configuration adjustment further gives rise to the separated frontier MO and T1 locations, beneficial to suppress quenching effects. By utilizing PCImbPO as host in blue phosphorescent organic light-emitting diodes (PHOLEDs) and thermally activated delayed fluorescence devices, impressively high external quantum efficiency of 22% and 12% were achieved, respectively. This work established a new understanding of high-energy-gap complicated D-A systems.
ORGANIC ELECTRONIC DEVICE
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, (2015/11/03)
wherein A1 is a C6-C20 arylene and each of A2-A3 is independently selected from a C6-C20 aryl, wherein the aryl or arylene may be unsubstituted or substituted with groups comprising C and H or with a further LiO group, provided that the given C count in a
Synthesis and reactivity profiles of phosphinated poly(alkyl aryl ether) dendrimers
Nithyanandhan, Jayaraj,Jayaraman, Narayanaswamy
, p. 11184 - 11191 (2007/10/03)
Poly(alkyl aryl ether) dendrimers were utilized to synthesize a series of new triphenylphosphine functionalized dendrimers. Zero, first, second and third generation dendrimers, carrying 3, 6, 12 and 24 triphenylphosphine units, were prepared and characterized. The new triphenylphosphine containing dendrimers were assessed for their reactivity profiles and in this instance, the dendrimers were used as reagents to mediate Mitsunobu etherification reaction between phenol and various primary, secondary and benzylic alcohols. In addition, dendritic poly-phenols were also tested in an O-benzylation reaction. A monomeric methoxy group attached triphenylphosphine acted as a control for comparison of reactivity profiles of dendrimers. It was observed that the etherification reaction was mediated efficiently by the dendritic reagent, and in addition, the dendritic phosphine oxide reagents could be recovered quantitatively by precipitation methods. The recovered dendritic phosphine oxides were reduced subsequently to the corresponding phosphines and used as reagents for the Mitsunobu reaction, repetitively.
The synthesis and structural characterisation of some azo-containing phosphine chalcogenides and comparison to non-phosphorus-containing analogues
Alder,Bates,Cross,Flower,Pritchard
, p. 2669 - 2675 (2007/10/03)
p-HO-Ph(Ph2)P(E) (E=S, 1b, Se, 1c) reacts with the diazonium salts [4-R-PhN=N][BF4] (R=H, Me, Et, iPr, tBu, NMe2, NO2) to afford the new compounds [1-HO-2-(4-R-PhN=N)-4-Ph2P(E)C
