797-72-8Relevant academic research and scientific papers
Organic Long-Persistent Luminescence from a Single-Component Aggregate
Alam, Parvej,Cheung, Tsz Shing,Du, Lili,Guo, Jing,Kwok, Ryan T. K.,Lam, Jacky W. Y.,Leung, Nelson L. C.,Phillips, David Lee,Sung, Herman H. Y.,Tang, Ben Zhong,Williams, Ian D.,Zeng, Zebing,Zhang, Jianyu
, (2022/02/01)
Long-persistent luminescence (LPL), also known as afterglow, is a phenomenon in which the material shows long-lasting luminescence after the cessation of the excitation source. The research of LPL continues to attract much interest due to its fundamental
The Trityl-Cation Mediated Phosphine Oxides Reduction
Landais, Yannick,Laye, Claire,Lusseau, Jonathan,Robert, Frédéric
supporting information, p. 3035 - 3043 (2021/05/10)
Reduction of phosphine oxides into the corresponding phosphines using PhSiH3 as a reducing agent and Ph3C+[B(C6F5)4]? as an initiator is described. The process is highly efficient, reducing a broad range of secondary and tertiary alkyl and arylphosphines, bearing various functional groups in generally good yields. The reaction is believed to proceed through the generation of a silyl cation, which reaction with the phosphine oxide provides a phosphonium salt, further reduced by the silane to afford the desired phosphine along with siloxanes. (Figure presented.).
Nickel-catalysed P-C bond formation via P-H/C-CN cross coupling reactions
Zhang, Ji-Shu,Chen, Tieqiao,Yang, Jia,Han, Li-Biao
supporting information, p. 7540 - 7542 (2015/05/04)
Nickel-catalysed P-H/C-CN cross coupling reactions take place efficiently under mild reaction conditions affording the corresponding sp2C-P bonds. This transformation provides a convenient method for the preparation of arylphosphines and arylphosphine oxides from the readily available P-H compounds and arylnitriles. This journal is
Facile synthesis of new cationic triphenylphosphine derivatives and their use for propene dimerization reactions in buffered chloroaluminate ionic liquids
Doetterl, Matthias,Thoma, Peter,Alt, Helmut G.
experimental part, p. 389 - 398 (2012/04/05)
We describe the facile synthesis of new, cationic triphenylphosphine derivatives containing para-trimethylammonium substituents. The ionic phosphines were successfully employed in nickel-catalyzed propene dimerization reactions in highly Lewis acidic chlo
[4-(N,N-dimethylamino)phenyl]diphenylphosphine oxide and its partial oxides: An isomorphous crystal series
Lynch, Daniel E.,Smith, Graham,Byriel, Karl A.,Kennard, Colin H.L.
, p. 1135 - 1139 (2007/10/03)
The title compound [4-(N,N-dimethylamino)phenyl]diphenylphosphine oxide (1) has been synthesized and its single-crystal X-ray structure determined. The structures of two 'partial' oxides of the parent compound, (2) and (3) (50% and 25% oxidized), isolated from the intermediate phosphine reaction product have also been determined, yielding an unusual isomorphous crystal series. An apparent P-O bond shortening with increasing oxidation is also observed across the series (1)-(3) (1.480(4), 1.351(4), 1.280(4) A respectively) and is considered an artifact of the structure refinement. The packing in the crystals shows primary one-dimensional chains with weak head-to-tail associations between the oxide oxygen (three-centre) and two hydrogen atoms from separate methyl groups of the N-substituted amine (range C-H...O 3.115(4)-3.356(8) A), extended into a sheet structure by peripheral inter-chain C-H (aromatic)...O (oxide) associations.
LIGAND-COUPLING IN THE ALKALINE HYDROLYSIS OF ARYLPHOSPHONIUM SALTS
Allen, David W.,Benke, Peter
, p. 259 - 262 (2007/10/02)
Biaryls are formed via a ligand-coupling process in the alkaline hydrolysis of a series of tetraarylphosphonium salts which bear electron-withdrawing substituents in the para position of one of the aryl rings.Key words: Biaryls; tetraarylphosphonium salt hydrolysis; hypervalent intermediates.
APPARENT ABSENCE OF REVERSAL OF OXAPHOSPHETANE FORMATION IN SOME WITTIG REACTIONS
Cairns, S. Matthew,McEwen, William E.
, p. 1541 - 1544 (2007/10/02)
Reversal of oxaphosphetane formation in the reaction of benzaldehyde with benzylidene(2-N,N-dimethylaminophenyl)diphenylphosphorane (1) and benzylidene(4-N,N-dimethylaminophenyl)diphenylphosphorane (2), respectively, is found not to occur in tetrahydrofuran solution.The reason for this is that the rates of dissociation of the oxaphosphetanes to stilbenes and the corresponding triarylphosphine oxide are faster than reversal to the reagents.
