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2,4-Cyclopentadien-1-one, 2,3,4,5-tetrakis(4-bromophenyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

49764-92-3

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49764-92-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49764-92-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,6 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 49764-92:
(7*4)+(6*9)+(5*7)+(4*6)+(3*4)+(2*9)+(1*2)=173
173 % 10 = 3
So 49764-92-3 is a valid CAS Registry Number.

49764-92-3Relevant academic research and scientific papers

Hydrophobic encapsulated phosphonium salts - Synthesis of weakly coordinating cations and their application in wittig reactions

Moritz, Ralf,Wagner, Manfred,Schollmeyer, Dieter,Baumgarten, Martin,Müllen, Klaus

, p. 9119 - 9125 (2015)

Large and rigid tetraarylphosphonium tetrafluoroborate salts have been synthesized representing weakly coordinating cations with diameters of several nanometers. Divergent dendritic growth by means of thermal Diels-Alder cycloaddition was employed for the construction of the hydrophobic polyphenylene framework up to the third generation. X-ray crystal structure analysis of first-generation phosphonium tetrafluoroborate supported the rigidity of the non-collapsible shell around the phosphorus center and gave insight into solid-state packing and cation-anion distances. Copper(I)-catalyzed azide-alkyne ligation served as reliable method for the preparation of a first-generation triazolylphenyl hybrid phosphonium cation under mild reaction conditions. Furthermore, from the synthesis of triarylbenzylphosphonium bromides, Wittig precursors with unprecedented bulky substituents in the α-position were accessible. Employment of these precursors under Wittig conditions by treatment with base and subsequent reaction with aldehydes preferentially provided (Z)-olefins with bulky polyphenylene substituents. Just add salt: The application of benzylphosphonium bromides as Wittig precursors resulted in the formation of encapsulated phosphorus ylides, which were further reacted with aldehydes to yield novel olefins with bulky substituents. The stereochemical analysis of the obtained alkenes showed the exclusive formation of (Z)-isomers when aromatic aldehydes were employed and the sterically congested polyphenylene (Z)-stilbene derivative (see scheme) is reported.

Breaking the symmetry in the molecular motor family: synthesis of a dissymmetrized pentaphenyl cyclopentadienyl ligand and its ruthenium tris(indazolyl)borate complex

Vives, Guillaume,Rapenne, Gwena?l

, p. 8741 - 8744 (2006)

In order to demonstrate a movement of rotation in a family of rotary molecular motors, 1-bromo-1-(4-tolyl)-2,3,4,5-tetra(4-bromophenyl) cyclopentadiene has been synthesized. The coordination of this C2v cyclopentadiene to a ruthenium trisindazo

FUNCTIONALIZED POLYCYCLIC AROMATIC HYDROCARBON COMPOUND AND LIGHT-EMITTING DEVICE INCLUDING THE SAME

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Paragraph 0168; 0172, (2021/10/02)

Provided are a functionalized polycyclic aromatic hydrocarbon compound and a light-emitting device including the same. The functionalized polycyclic aromatic hydrocarbon compound is structurally stable, and exhibits high light-emission characteristics sin

COMPOSITION

-

Page/Page column 23, (2016/12/22)

Provided is a composition which comprises two immiscible compounds and a compatibiliser, which stabilises the interface between two or more immiscible compounds. The compatibiliser improves the morphology of blends comprising the first and second compounds. The composition may be useful in the context of functional blends for optoelectronic applications, such as solar cells, organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Also provided is a process for the preparation of the composition and compounds for use therein.

Racemisation of 1-arylethylamines with Shvo-type organoruthenium catalysts

Apps, James F. S.,Livingston, Andrew G.,Parrett, Mark R.,Pounder, Ryan J.,Taylor, Paul C.,Turner, Andrew R.

, p. 1391 - 1394 (2014/06/23)

Variation of the electronic nature of the tetraphenylcyclopentadienone ligand in organoruthenium complexes influences their utility for racemisation of model chiral amines. Our study highlights the need to balance reactivity and selectivity in the design of racemisation catalysts. Electron-poor Shvo-type catalysts are, at first sight, more effective for racemisation, but yield more by-product; electron-rich complexes are less proficient at racemisation, but lead to less by-product.

Efficient synthesis of substituted polyarylphthalimides via cycloaddition of cyclopentadienones with 2-bromomaleimide

Vanel, Rémi,Berthiol, Florian,Bessières, Bernard,Einhorn, Cathy,Einhorn, Jacques

supporting information; experimental part, p. 1293 - 1295 (2011/07/07)

Functionalized tetraarylphthalimides or diarylphthalimides fused with an acenaphthene moiety have been prepared in one step from 2-bromomaleimide and tetraarylcyclopentadienones (tetracyclones) or 7,9-diaryl-8H- cyclopentacenaphthylene-8-ones (acecyclones

Highly Branched Dendrimers

-

, (2008/12/08)

A dendrimer of formula (I): [DENDRON1]x-CORE-[B-[X]b]a (I) wherein: CORE is a metal ion or a group containing a metal ion, or is a non-polymeric organic group; B is a phenyl ring; a is an integer of from 1 to 8;

Directed synthesis of symmetric and dissymmetric molecular motors built around a ruthenium cyclopentadienyl tris(indazolyl)borate complex

Vives, Guillaume,Rapenne, Gwéna?l

experimental part, p. 11462 - 11468 (2009/04/11)

This article focuses on the synthesis of a family of rotary molecular motors based on a penta-substituted cyclopentadienyl tris(indazolyl)borate ruthenium(II) complex. In order to demonstrate a movement of rotation in this family of molecular motors, diss

TETRAPHENYLNAPHTHALENE DERIVATIVES AND ORGANIC LIGHT EMITTING DIODE USING THE SAME

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Page/Page column 33-34, (2010/11/28)

The present invention provides a novel tetraphenylnaphthalene derivative, and an organic light emitting device using the same.

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