32298-40-1

Upstream product

• 611-97-2 bis(p-methylphenyl)-methanone 
• 30615-49-7 benzhydrylmagnesium bromide 
• 119-61-9 benzophenone 
• 2592-73-6 1,1-dibromo-2,2-diphenylethylene 
• 106-38-7 para-bromotoluene 
• 101-81-5 Diphenylmethane 
• 5152-68-1 benzhydryl sodium 
• 135655-34-4 4,4'-dimethylselenobenzophenone 
• 908093-98-1 diazodiphenylmethane 
• 124017-62-5 2,2-Diphenyl-3,3-di-p-tolyl-thiirane 
• 859777-49-4 2,2-diphenyl-1,1-di-p-tolyl-ethanol 
• 75-36-5 acetyl chloride 

Downstream Products

• 1274702-30-5 9-phenyl-10-p-tolyl-3-methylphenanthrene 
• 32298-39-8 1,1-bis(4-methylphenyl)-2,2-diphenylethane 

Relevant academic research and scientific papers

Aggregation-induced emission and self-assembly of functional tetraphenylethene-based tetracationic dicyclophanes for selective detection of ATP in water

Functional dicyclophanes with various substituents (e.g., NO2, Br, OCH3 and OH) were synthesized via one-pot SN2 reaction. Dicyclophanes can form nanospheres via the head-to-tail self-assembly between the cavities and the

Divergent and Stereoselective Synthesis of Tetraarylethylenes from Vinylboronates

The synthesis of a new tetraborylethylene (TBE) is reported, and its application in the preparation of [4+0]-tetraarylethenes (TAEs) is elucidated. TAEs have widespread applications in material science and supramolecular chemistry due to their aggregation-induced emission (AIE) properties. The divergent and stereoselective synthesis of [3+1]-, [2+2]-, and [2+1+1]-TAEs via multiple couplings of vinylboronates with aryl bromides is demonstrated. These couplings feature a broad substrate scope and excellent functional group compatibility due to mild reaction conditions. Facile access to various tetraarylethenes is provided. This strategy represents an important complement to the conventional methods employed for the synthesis of TAEs, and would be a valuable tool for synthesizing TAE-based molecules useful in functional materials, biological imaging and chemical sensing.

Tetrastyryl-based cationic fluorescent probe and preparation method and application thereof

The invention discloses a tetrastyryl-based cationic fluorescent probe and a preparation method and application thereof. The method comprises the following steps: preparing a solid compound 1; preparing a faint yellow solid compound 2; preparing a yellow

Tetraphenylethene-based tetracationic cyclophanes and their selective recognition for amino acids and adenosine derivatives in water

Two new tetracationic cyclophanes 1 and 2 containing tetraphenylethene and bipyridinium moieties were synthesized via a two-step SN2 reaction. These water-soluble cyclophanes with a cationic and hydrophobic cavity exhibited selective recognitio

Tetraarylethylenes from Diarylmethanones and Hexachlorodisilane: The “Sila-McMurry” Reaction

Hexachlorodisilane reacts with diarylmethanones (aryl=C6H5, 4-MeC6H4, 4-tBuC6H4, 4-ClC6H4, 4-BrC6H4) to furnish the corresponding tetraarylethylenes in good yields. The reductive conversion requires temperatures of about 160 °C and reaction times of 60–72 h. In the initial step, the Lewis-basic carbonyl groups likely generate low-valent [SiCl2] as an analogue of [TiCl2] in the classical McMurry reaction. The coupling sequence further proceeds via benzopinacolones, which have been isolated as key intermediates.

Practical synthesis of unsymmetrical tetraarylethylenes and their application for the preparation of [triphenylethylene-spacer-triphenylethylene] triads

(Chemical Equation Presented) We have demonstrated that reactions of diphenylmethyllithium with a variety of substituted benzophenones produces corresponding tertiary alcohols that are easily dehydrated, without any need for purification, to produce various unsymmetrical and symmetrical tetraarylethylenes in excellent yields. The simplicity of the method allows for the preparation of a variety of ethylenic derivatives in multigram (10-50 g) quantities with great ease. The methodology was successfully employed for the preparation of various triphenylethylene (TPE)-based triads (i.e., TPE-spacer-TPE) containing polyphenylene and fluoranyl-based spacers. The ready availability of various substituted tetraarylethylenes allowed us to shed light on the effect of substituents on the oxidation potentials (Eox) of various tetraarylethylenes. Moreover, the electronic coupling among the triphenylethylene moieties in various TPE-spacer-TPE triads was briefly probed by electrochemical and optical methods.

Insights into the general and efficient cross McMurry reactions between ketones

The selective cross McMurry couplings of diaryl or aryl ketones with various substituted ketones were achieved in 53-94% isolated yields. It is believed that the strong affinity of the substituents to the low-valent titanium surface plays an important role in regards to moderating selectivity. Through the introduction of such substituents followed by their removal post McMurry coupling, structurally similar ketones can be effectively cross-coupled.

Dications of fluorenylidenes. The relationship between redox potentials and antiaromaticity for meta- and para-substituted diphenylmethylidenefluorenes

Electrochemical oxidation of meta-substituted diphenylmethylidenefluorenes (3a-g) results in the formation of fluorenylidene dications that are shown to be antiaromatic through calculation of the nucleus independent chemical shift (NICS) for the 5- and 6-

SELENOBENZOPHENONES AND DIAZOALKANES: REACTION AND MECHANISTIC ELUCIDATION

The reaction of selenobenzophenones with diazomethane, afforded the corresponding diarylethylenes and symmetrical olefins.The reaction with other diazoalkanes gave three different types of olefins.This reaction proceeded through selenadiazoline intermediates and retrocyclization was observed.Keywords: Selenobenzophenone; diazoalkane; selenadiazoline; episelenide; olefin.

AMINIUM RADICAL SALT CATALYZED DESULPHURIZATION OF THIIRANES: AN EFFICIENT PREPARATION OF ARYLSUBSTITUTED OLEFINS

Arylsubstituted olefins are obtained from corresponding thiiranes in high yields under mild conditions by using catalytic amount of tris-(p-bromophenyl)aminium hexachloroantimonate (1) as a single electron transfer (SET) oxidant.