15475-27-1Relevant articles and documents
Extremely bulky secondary phosphinoamines as substituents for sterically hindered aminosilanes
B?ttcher, Tobias,Jones, Cameron
, p. 14842 - 14853 (2015)
The synthesis of a series of extremely bulky secondary amines with a phosphine function, Ar?(PR2)NH (Ar? = C6H2{C(H)Ph2}2Pri-2,6,4; R = Ph, NEt2, NPri
Investigation of the Purity of Alkali Metal Diphenylphosphides and Their Reactions with Organic Halides. Evidence for Single Electron Transfer
Ashby, E. C.,Gurumurthy, R.,Ridlehuber, R. W.
, p. 5832 - 5837 (1993)
For the first time the purity of lithium, sodium, and potassium diphenylphosphide, prepared by various methods, has been evaluated using (31)P NMR spectroscopy.A method was developed to prepare each of the phosphides in a high state of purity.Highly pure potassium diphenylphosphide was then allowed to react with p-iodotoluene in order to determine the effect of purity on the SRN1 nature of this reaction.The results were then compared with literature reports which used less pure KPPh2.The mechanism of reaction of alkyl halides with pure alkali metal diphenylphosphides, using the radical probes 6-halo-5,5-dimethyl-1-hexenes and 1-halo-2,2-dimethylhexanes, was investigated.The results provide the first evidence to support single electron transfer (SET) in the reaction of an alkali metal diphenylphosphide with an alkyl halide.SET was found to be the major reaction pathway in the reaction of hindered alkyl iodides (neopentyl type).On the other hand, SET was found to be a minor pathway in the reaction of the corresponding alkyl bromides and chlorides with PPh2(1-).There was no evidence found for SET in the reactions of unhindered alkyl halides with PPh2(1-) although SET participation cannot be rigorously excluded.
Alkali-metal-catalyzed addition of primary and secondary phosphines to carbodiimides. A general and efficient route to substituted phosphaguanidines
Zhang, Wen-Xiong,Nishiura, Masayoshi,Hou, Zhaomin
, p. 3812 - 3814 (2006)
Organo alkali metal compounds such as nBuLi and (Me 3Si)2NK act as excellent catalyst precursors for the addition of phosphine P-H bonds to carbodiimides, offering a general and atom-economical route to substituted phospha
Highly efficient roomerature phosphorescence achieved by gadolinium complexes
Sun, Boxun,Wei, Chen,Wei, Huibo,Cai, Zelun,Liu, Huanyu,Zang, Zhiyu,Yan, Wenchao,Liu, Zhiwei,Bian, Zuqiang,Huang, Chunhui
, p. 14958 - 14961 (2019)
A new family of room temperature phosphorescent materials with emission lifetimes in microseconds has been reported in this work. Phosphorescence of gadolinium complexes with emission color from blue to orange has been obtained at room temperature with a maximum photoluminescence quantum yield of 66%, benefiting from appropriate molecular structures and favorable encapsulation methods.
Eine einfache Methode zur Darstellung von Alkalimetall-bis(trimethylsilyl)phosphiden
Uhlig, Frank,Hummeltenberg, Reinhard
, p. C9 - C10 (1993)
A simple way for the preparation of alkali-bis(trimethylsilyl)phosphides is described by the reaction of tris(trimethylsilyl)phosphine with alkali-alcoholates.
N?H Bond Formation at a Diiron Bridging Nitride
Carroll, Patrick J.,Cui, Peng,Gau, Michael R.,Liu, Tianchang,Longo, Thomas J.,Manor, Brian C.,Papaefthymiou, Georgia C.,Thierer, Laura M.,Tomson, Neil C.,Wang, Qiuran,Zhang, Shaoguang
supporting information, p. 15215 - 15219 (2020/06/17)
Despite their connection to ammonia synthesis, little is known about the ability of iron-bound, bridging nitrides to form N?H bonds. Herein we report a linear diiron bridging nitride complex supported by a redox-active macrocycle. The unique ability of th
Ready Approach to Organophosphines from ArCl via Selective Cleavage of C-P Bonds by Sodium
Ye, Jingjing,Zhang, Jian-Qiu,Saga, Yuta,Onozawa, Shunya,Kobayashi, Shu,Sato, Kazuhiko,Fukaya, Norihisa,Han, Li-Biao
supporting information, p. 2682 - 2694 (2020/07/30)
The preparation, application, and reaction mechanism of sodium phosphide R2PNa and other alkali metal phosphides R2PM (M = Li and K) have been studied. R2PNa could be prepared, accurately and selectively, via the reactions of SD (sodium finely dispersed in mineral oil) with phosphinites R2POR′ and chlorophosphines R2PCl. R2PNa could also be prepared from triarylphosphines and diarylphosphines via the selective cleavage of C-P bonds. Na was superior to Li and K for these reactions. R2PNa reacted with a variety of ArCl to efficiently produce R2PAr. ArCl is superior to ArBr and ArI since they only gave low yields of the products. In addition, Ph2PNa is superior to Ph2PLi and Ph2PK since Ph2PLi did not produce the coupling product with PhCl, while Ph2PK only gave a low yield of the product. An electron-withdrawing group on the benzene ring of ArCl greatly accelerated the reactions with R2PNa, while an alkyl group reduced the reactivity. Vinyl chloride and alkyl chlorides RCl also reacted efficiently. While t-BuCl did not produce the corresponding product, admantyl halides could give the corresponding phosphine in high yields. A wide range of phosphines were prepared by this method from the corresponding chlorides. Unsymmetric phosphines could also be conveniently generated in one pot starting from Ph3P. Chiral phosphines were also obtained in good yields from the reactions of menthyl chlorides with R2PNa. Possible mechanistic pathways were given for the reductive cleavage of R3P by sodium generating R2PNa and the substitution reactions of R2PNa with ArCl generating R2PAr.
Synthesis and properties of heterobimetallic rhodium complexes featuring LiI, CuI or ZnII as a Lewis acidic metalloligand
Steinhoff, Patrick,Steinbock, Ralf,Friedrich, Anna,Schieweck, Benjamin G.,Cremer, Christopher,Truong, Khai-Nghi,Tauchert, Michael E.
supporting information, p. 10439 - 10442 (2018/08/17)
A series of [(PMP)Rh(CO)Cl]n+ complexes was synthesised and the impact of the metalloligands CuI, LiI and ZnII on the CO stretching band was analysed.
Quantum Yields over 80% Achieved in Luminescent Europium Complexes by Employing Diphenylphosphoryl Tridentate Ligands
Wei, Chen,Sun, Boxun,Cai, Zelun,Zhao, Zifeng,Tan, Yu,Yan, Weibo,Wei, Huibo,Liu, Zhiwei,Bian, Zuqiang,Huang, Chunhui
supporting information, p. 7512 - 7515 (2018/07/13)
Four tridentate europium(III) complexes containing a diphenylphosphoryl group are prepared with strong bonding between the ligands and centered ion, convinced by crystal structures. Compared to their parent bidentate complexes, the tridentate complexes di
Spectroscopic and reactivity differences in metal complexes derived from sulfur containing Triphos homologs
Petuker,Gerschel,Piontek,Ritterskamp,Wittkamp,Iffland,Miller,Van Gastel,Apfel
, p. 13251 - 13262 (2017/10/16)
Herein, we report a simplified method for the synthesis of Triphos homologs H3CC(CH2X)n(CH2Y)3-n (X = SPh, Y = PPh2, n = 0-3). The multidentate compounds were tested for their potential to coordinate metals such as Ni, Fe, and Mo under the same experimental conditions. Cyclic voltammetry, spectroelectrochemical IR investigations as well as DFT calculations were used to examine the electronic alterations in a series of [{H3CC(CH2X)n(CH2Y)3-n}Mo(CO)3] complexes and to evaluate their potential to open coordination sites or to release CO upon oxidation or in the presence of different solvents. In addition, we demonstrate that the catalytic hydrosilylation of N,N-dimethylbenzamide to N,N-dimethylbenzylamine is influenced by the applied tripodal ligand. Our investigations show the high potential of such manipulations to selectively alter the dynamics of the binding properties of Triphos-metal complexes and their reactivity.
