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Phosphine oxide, (2-bromophenyl)diphenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

88652-74-8

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88652-74-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 88652-74-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,6,5 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 88652-74:
(7*8)+(6*8)+(5*6)+(4*5)+(3*2)+(2*7)+(1*4)=178
178 % 10 = 8
So 88652-74-8 is a valid CAS Registry Number.

88652-74-8Relevant academic research and scientific papers

Heteroaryl Backbone Strategy in Bisphosphine Monoxide Palladium-Catalyzed Ethylene Polymerization and Copolymerization with Polar Monomers

Ye, Junhao,Mu, Hongliang,Wang, Zhen,Jian, Zhongbao

, p. 2990 - 2997 (2019)

The backbone structure of ligand is of critical importance to modulate the selectivity and the reactivity of catalyst. In this contribution, heteroaryl backbone (benzo)thiophene was for the first time installed on bisphosphine-monoxide (PO) ligands. Corre

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.).

Enantioselective Au(i)-catalyzed dearomatization of 1-naphthols with allenamides through Tethered Counterion-Directed Catalysis

Frison, Gilles,Guinchard, Xavier,Marinetti, Angela,Rabasso, Nicolas,Voituriez, Arnaud,Yu, Yunliang,Zhang, Zhenhao

supporting information, p. 10779 - 10782 (2021/10/20)

The Tethered Counterion-Directed Catalysis (TCDC) approach has been applied to the enantioselective Au(i) catalyzed dearomatizations of 1-naphthols with allenamides. Stereocontrol is ensured by the intramolecular ion-pairing between the chiral gold-tether

EUROPIUM COMPLEX

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Paragraph 0362; 0365-0366, (2020/11/23)

To provide europium complexes having high photostability. A europium complex expressed with the following formula (A): {wherein, RA and RB are independently a cyclic alkyl group with 3 to 10 carbons, respectively, and RC is a cyclic alkyl group with 3 to 10 carbons or a phenyl group expressed with the following formula (B): (wherein, XA, XB, AC, XD and XE independently represent a hydrogen atom; a fluorine atom; an alkyl group with 1 to 3 carbon(s); an alkyloxy group with 1 to 3 carbon(s); an aryloxy group with 6 to 10 carbons; a fluoroalkyl group with 1 to 3 carbon(s); a fluoroalkyloxy group with 1 to 3 carbon(s); or a phenyl group that may be substituted with a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a fluorophenyl group, a hydroxyl group or a cyano group, respectively); RA is a cyclic alkyl group with 3 to 10 carbons; RB and RC are a phenyl group expressed with the formula (B), provided, however, that a case where RA a cyclohexyl group, and, RB and RC are a phenyl group is excluded; or RA, RB and RC independently represent an ortho-substituted phenyl group expressed with the following formula (Ba): (wherein, XE represents a hydrogen atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a naphthyl group that may be substituted with a fluorine atom, a pyridyl group that may be substituted with a fluorine atom, or a phenyl group that is expressed with a formula (C): [wherein, ZA, ZC and ZE independently represent a hydrogen atom, a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a phenyl group that may be substituted with a fluorine atom, a hydroxyl group or a cyano group; ZB and ZD independently represent a hydrogen atom or a fluorine atom, respectively], provided, however, that a case where RA, RB and RC are all a phenyl group is excluded), respectively; RD represents a hydrogen atom, a deuterium atom or a fluorine atom; WA and WB independently represent an alkyl group with 1 to 6 carbon(s), a fluoroalkyl group with 1 to 6 carbon(s), a phenyl group, a 2-thienyl group or a 3-thienyl group; and ‘n’ represents an integer of 1 to 3}.

Tethered Counterion-Directed Catalysis: Merging the Chiral Ion-Pairing and Bifunctional Ligand Strategies in Enantioselective Gold(I) Catalysis

Frison, Gilles,Guinchard, Xavier,Marinetti, Angela,Retailleau, Pascal,Smal, Vitalii,Voituriez, Arnaud,Zhang, Zhenhao

supporting information, p. 3797 - 3805 (2020/03/10)

Tethering a metal complex to its phosphate counterion via a phosphine ligand enables a new strategy in asymmetric counteranion-directed catalysis (ACDC). A straightforward, scalable synthetic route gives access to the gold(I) complex of a phosphine displaying a chiral phosphoric acid function. The complex generates a catalytically active species with an unprecedented intramolecular relationship between the cationic Au(I) center and the phosphate counterion. The benefits of tethering the two functions of the catalyst are demonstrated here in a tandem cycloisomerization/nucleophilic addition reaction, by attaining high enantioselectivity levels (up to 97% ee) at an unusually low 0.2 mol % catalyst loading. Remarkably, the method is also compatible with a silver-free protocol.

Organic long afterglow material containing triphenylphosphine (triphenylphosphine oxide) and preparation method and use method thereof

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Paragraph 0037-0041; 0045-0047, (2020/11/26)

The invention relates to an organic long afterglow material containing triphenylphosphine (triphenylphosphine oxide). The molecular structure of the organic long afterglow material is TP(O)-R, whereinTP(O) is a triphenylphosphine (triphenylphosphine oxide) group; R is an aromatic ring or an aromatic heterocyclic compound; TP(O) and R groups are connected in an ortho-position mode, the synthesizedluminescent material has a spiral molecular configuration, non-radiative transition is effectively inhibited under the large steric hindrance configuration and strong intramolecular action, long afterglow luminescence is achieved, and the luminescence wavelength, phosphorescence lifetime and other properties of a final product can be adjusted by introducing different functional groups. The synthesis method disclosed by the invention is simple in process and easy to purify, the synthesized luminescent material has the spiral molecular configuration, the non-radiative transition is effectivelyinhibited under the large steric hindrance configuration and strong intramolecular action, the long afterglow luminescence is realized, and the luminescence wavelength, phosphorescence lifetime and other properties of the final product can be adjusted by introducing different functional groups. The organic long afterglow material is applied to the fields of organic photoelectricity, biological imaging, counterfeiting prevention and the like.

Ruthenium-Catalyzed Gram-Scale Preferential C-H Arylation of Tertiary Phosphine

Li, Jia-Wei,Wang, Liang-Neng,Li, Ming,Tang, Pan-Ting,Luo, Xiao-Peng,Kurmoo, Mohamedally,Liu, Yue-Jin,Zeng, Ming-Hua

supporting information, p. 2885 - 2889 (2019/04/30)

A general protocol for site-preferential mono-C-H arylation of tertiary phosphine ligands catalyzed by a ruthenium(II) complex was devised. This protocol gives access to a series of modified Buchwald-biaryl monophosphines on a gram scale in moderate to excellent yields. A catalytic cycle is proposed derived from knowledge of the intermediates observed by ESI-MS. Importantly, these monoarylated products could be further transformed into dibenzophosphole derivatives.

P(O)R2-Directed Enantioselective C-H Olefination toward Chiral Atropoisomeric Phosphine-Olefin Compounds

Li, Shi-Xia,Ma, Yan-Na,Yang, Shang-Dong

supporting information, p. 1842 - 1845 (2017/04/11)

An effective synthesis of chiral atropoisomeric biaryl phosphine-olefin compounds via palladium-catalyzed enantioselective C-H olefination has been developed for the first time. The reactions are operationally simple, tolerate wide functional groups, and have a good ee value. Notably, P(O)R2 not only acts as the directing group to direct C-H activation in order to make a useful ligand but also serves to facilitate composition of the product in a useful manner in this transformation.

Based on 4,4 the structure of the- [...][...] 9, the 9-bit [...] a main body material and its application (by machine translation)

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Paragraph 0031; 0032, (2016/10/10)

Based on 4,4 the structure of the- [...][...] 9, the 9-bit [...] a main body material and its application, the present invention discloses a kind HOMO line condition and at the same time has a high level and the main material with excellent performance, its to 4, the 4-bit connected [...][...] as the molecule skeleton structure, in its 9,9 the connecting substituent [...] -position, which can be connected with transmission performance of the cavity diphenylammonium unit Dn, but also can be connected with electronic transmission performance unit An: phosphorusoxychloride unit, sulfur and oxygen unit, in addition to the two special spiral ring-like structure can be formed. The main body material of the present invention synthetic method is simple and easy to operate, which is suitable to be widely used. Main body material by the present invention of the organic electroluminescent light-emitting device is phosphorescent blue light, has high efficiency, high brightness, low efficiency low starting voltage attenuation and electroluminescent performance, can be widely applied to the organic electroluminescent field. (by machine translation)

Palladium-catalyzed R2(O)P directed C(sp2)-H acetoxylation

Zhang, Heng,Hu, Rong-Bin,Zhang, Xiao-Yu,Li, Shi-Xia,Yang, Shang-Dong

supporting information, p. 4686 - 4689 (2014/05/06)

A novel and efficient Pd-catalyzed C-H acetoxylation is described. The approach uses R2(O)P as a directing group to synthesize various substituted 2′-phosphorylbiphenyl-2-OAc compounds. Notably, the reaction exhibits smooth operation under mild conditions and shows good functional group tolerance. Products are obtained with high selectivity and yields. This journal is the Partner Organisations 2014.

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