47797-98-8

Usage

Purification Methods

Crystallise it from dioxane or AcOH (m 292o, yellow needles), and dry it at 150o/0.1mm. [Gorvin J Chem Soc 678 1959, Schlenk Justus Liebigs Ann Chem 394 214 1913, Beilstein 5 H 744, 5 IV 2780.]

Upstream product

• 632-51-9 1,1,2,2-tetraphenylethylene 
• 1817-74-9 bis(4-nitrophenyl)methane 
• 1033-26-7 4,4'-dinitrobenzophenone 
• 6425-27-0 α,α-dibromodiphenylmethane 
• 119-61-9 benzophenone 
• 5397-81-9 dibromo-bis-(4-nitro-phenyl)-methane 

Downstream Products

• 78525-34-5 4,4’,4’’,4’’’-(ethene-1,1,2,2-tetrayl)tetraaniline 
• 1033-26-7 4,4'-dinitrobenzophenone 
• 101636-04-8 tetrakis-(4-nitro-phenyl)-oxirane 
• 110176-63-1 1,1,2,2-tetrakis-(4-amino-phenyl)-ethane 
• 78525-35-6 tetrakis(4-acetylaminophenyl)ethene 

Relevant academic research and scientific papers

Aqueous fluorescence turn-on Sensor for Zn2+ with a tetraphenylethylene compound

A new sensitive and selective fluorescence turn-on sensor for Zn 2+ (1) was developed by taking advantage of the aggregation-induced emission of the tetraphenylethylene framework. In addition, the corresponding ester precursor of 1 was successf

Diastereoselective Control of Tetraphenylethene Reactivity by Metal Template Self-Assembly

The reaction of 4,4′,4′′,4′′′-(ethene-1,1,2,2-tetrayl)tetraaniline with 2-pyridinecarboxaldehyde and iron(II) chloride resulted, after aqueous workup, in the diastereoselective formation of an [Fe2L3]4+ triple-stranded hel

Self-Assembly and Fluorescence of Tetracationic Liquid Crystalline Tetraphenylethene

A series of tetraguanidinium tetraphenylethene (TPE) arylsulfonates with different chain lengths was prepared via ionic self-assembly of tetraguanidinium TPE chloride and the respective methyl arylsulfonates. Liquid crystalline properties were studied by

An Elastic Hydrogen-Bonded Cross-Linked Organic Framework for Effective Iodine Capture in Water

A crystalline microporous hydrogen-bonded cross-linked organic framework has been developed through covalent photo-cross-linking of molecular monomers that are assembled in a crystalline state. The elastic framework expands its void space to adsorb iodine rapidly with a high uptake capacity in an aqueous environment as well as recovering its crystalline form after the release of iodine.

Oriented Films of Conjugated 2D Covalent Organic Frameworks as Photocathodes for Water Splitting

Light-driven water electrolysis at a semiconductor surface is a promising way to generate hydrogen from sustainable energy sources, but its efficiency is limited by the performance of available photoabsorbers. Here we report the first time investigation of covalent organic frameworks (COFs) as a new class of photoelectrodes. The presented 2D-COF structure is assembled from aromatic amine-functionalized tetraphenylethylene and thiophene-based dialdehyde building blocks to form conjugated polyimine sheets, which π-stack in the third dimension to create photoactive porous frameworks. Highly oriented COF films absorb light in the visible range to generate photoexcited electrons that diffuse to the surface and are transferred to the electrolyte, resulting in proton reduction and hydrogen evolution. The observed photoelectrochemical activity of the 2D-COF films and their photocorrosion stability in water pave the way for a novel class of photoabsorber materials with versatile optical and electronic properties that are tunable through the selection of appropriate building blocks and their three-dimensional stacking.

Chiral Assembly of AIE-Active Achiral Molecules: An Odd Effect in Self-Assembly

The induction of chirality in supramolecular structures through hierarchical self-assembly of achiral compounds and the control of their handedness are closely related to the evolution of life and the chiral amplification found in nature. Herein, it is sh

Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene

A 1,1,2,2-tetrakis(4-aminophenyl)ethene with three paths of π-conjugation, linear-cis, linear-trans and a cross-conjugation, has been prepared. The molecule is able to bind to gold electrodes forming molecular junctions for single-molecule conductance measurements. Only two regimes of conduction are found experimentally. The modelling of the conductance allows to assign them to through-bond transmission in the linear case, while the cross-conjugated channel is further assisted by through-space transmission, partially alleviating the destructive quantum interference. This journal is

Stimuli-responsive transmembrane anion transport by AIE-active fluorescent probes

Anticancer drug resistance implicates multifunctional mechanisms, and hypoxia is one of the key factors in therapeutic resistance. Hypoxia-specific therapy is considered an extremely effective strategy to fight against cancer. The development of small molecule-based synthetic anion transporters has also recently drawn attention for their potential therapeutic applications against several ion-transport-associated diseases, such as cancer and others. Herein, we describe the development of a hypoxia-responsive proanionophore to trigger controlled transport of anions across membranes under pathogenic conditions. Herein, we report the development of tetraphenylethene (TPE)-based anion transporters. The sulfonium-linkedp-nitrobenzyl containing TPE-based proanionophore could be converted into a lipophilic fluorescent Cl?ion carrier in a hypoxic or reductive environment. Stimuli such as nitroreductase (NTR) and glutathione (GSH) mediated regeneration of the TPE-based active Cl?ion transporter also showed aggregation-induced emission (AIE) properties. We hypothesize that such hypoxia and reductive stimuli activatable proanionophores have tremendous potential to fight against channelopathies, including cancer.

COVALENT ORGANIC FRAMEWORKS AND APPLICATIONS AS PHOTOCATALYSTS

Described herein are covalent organic frameworks. The covalent organic frameworks have unique structural and physical properties, which lends them to be versatile in a number of different applications and uses. In one aspect, the covalent organic frameworks are composed of a plurality of fused aromatic groups and electron-deficient chromophores. The covalent organic frameworks are useful as photocatalysts in a number of different applications.

Method for synthesizing tetraaryl substituted ethylene derivative with electron-deficient group

The invention relates to the technical field of organic chemical synthesis, and particularly relates to a method for synthesizing a tetraaryl substituted ethylene derivative with an electron-deficientgroup. The method comprises the following steps: adding