3478-90-8

Upstream product

• 75-44-5 phosgene 
• 92-52-4 biphenyl 
• 79-37-8 oxalyl dichloride 
• 14002-51-8 4-biphenyl-carboxylic acid chloride 
• 60-29-7 diethyl ether 
• 121260-99-9 tetrakis-biphenyl-4-yl-ethane-1,2-diol 
• 141-52-6 sodium ethanolate 
• 71-43-2 benzene 
• 873414-58-5 1,1-bis-biphenyl-4-yl-2,2-diphenyl-ethane-1,2-diol 
• 3901-32-4 bis(4-biphenylyl)methane 
• 64-19-7 acetic acid 
• 108-86-1 bromobenzene 
• 859187-54-5 3,3,4,4-tetrakis-biphenyl-4-yl-2,2,5,5-tetramethyl-hexane 
• 108-88-3 toluene 

Downstream Products

• 63603-07-6 4-(1-{[1,1'-biphenyl]-4-yl}ethenyl)-1,1'-biphenyl 
• 5341-14-0 Tris(4-biphenylyl)methanol 
• 43007-87-0 1,1-bis-biphenyl-4-yl-propene 
• 873985-88-7 1-hydroxy-2.2-dimethyl-1.1-bis-(biphenylyl-⁽⁴⁾)-propane 
• 60916-60-1 bis(4-biphenylyl)phenylmethanol 
• 121260-99-9 tetrakis-biphenyl-4-yl-ethane-1,2-diol 
• 4596-95-6 bis(biphenyl-4-yl)methanol 
• 79368-62-0 bis-biphenyl-4-yl-dichloro-methane 
• 6334-91-4 4,4'-diphenyl-benzilic acid 
• 7146-38-5 tetra-4-biphenylylethylene 
• 149704-43-8 Hydroxy-(4-methxoy-phenyl)-bis-(biphenylyl-⁽⁴⁾)-methan 
• 86213-99-2 α-Naphthyl-bis-diphenylyl-carbinol 
• 120265-26-1 4,4-(2-phenylethene-1,1-diyl)di-1,1’-biphenyl 
• 116670-66-7 1,1-bis-biphenyl-4-yl-2-phenyl-ethanol 

Relevant academic research and scientific papers

Design and synthesis of a new series of tetra(polycyclic aryl)ethenes: Achieving aggregation-induced emission and efficient solid-state photoluminescence

Abstract Three novel ethene derivatives substituted by four polycyclic aromatic hydrocarbons, tetrakis(4,5,9,10-tetrahydropyren-2-yl)ethene, tetra(fluoren-2-yl)ethene and tetra(biphenyl-4-yl)ethene, were efficiently synthesized and characterized by NMR sp

Palladium/Copper-Catalyzed Oxidative Coupling of Arylboronic Acids with Isocyanides: Selective Routes to Amides and Diaryl Ketones

An efficient and alternative oxidative cross-coupling strategy starting from arylboronic acids and isocyanides for the selective synthesis of amides and diaryl ketones with palladium/copper catalysis is developed. Various substituted benzamides and benzop

Synthesis of fluorenone derivatives through Pd-catalyzed dehydrogenative cyclization

Palladium-catalyzed dual C-H functionalization of benzophenones to form fluorenones by oxidative dehydrogenative cyclization is reported. This method provides a concise and effective route toward the synthesis of fluorenone derivatives, which shows outstanding functional group compatibility.

Dichloro-bis(aminophosphine) complexes of palladium: Highly convenient, reliable and extremely active suzuki-miyaura catalysts with excellent functional group tolerance

Dichloro-bis(aminophosphine) complexes are stable depot forms of palladium nanoparticles and have proved to be excellent SuzukiMiyaura catalysts. Simple modifications of the ligand (and/or the addition of water to the reaction mixture) have allowed their formation to be controlled. Dichlorobis[1- (dicyclohexylphosphany1)piperidine]palladium (3), the most active catalyst of the investigated systems, is a highly convenient, reliable, and extremely active Suzuki catalyst with excellent functional group tolerance that enables the quantitative coupling of a wide variety of activated, nonactivated, and deactivated and/or sterically hindered functionalized and heterocyclic aryl and benzyl bromides with only a slight excess (1.1-1.2 equiv) of arylboronic acid at 80°C in the presence of 0.2 mol % of the catalyst in technical grade toluene in flasks open to the air. Conversions of >95% were generally achieved within only a few minutes. The reaction protocol presented herein is universally applicable. Side-products have only rarely been detected. The catalytic activities of the aminophosphine-based systems were found to be dramatically improved compared with their phosphine analogue as a result of significantly faster palladium nanoparticle formation. The decomposition products of the catalysts are dicyclohexylphosphinate, cyclohexylphosphonate, and phosphate, which can easily be separated from the coupling products, a great advantage when compared with non-water-soluble phosphine-based systems.

Hydroxylation of phenolic compounds

Phenolic compounds, e.g., phenol, are hydroxylated, preponderantly into the para-isomer, e.g., hydroquinone, by reaction with hydrogen peroxide in the presence of an effective amount of a strong acid and a catalytically effective amount of a keto compound having the formula (II): STR1 in which R1 and R2, which may be identical or different, are each a hydrogen atom or an electron-donating group; n1 and n2, which may be identical or different, are numbers equal to 0, 1, 2 or 3, with the proviso that the two carbon atoms located at the α-position with respect to the two carbon atoms bearing the --CO group may be bonded together via a valence bond or via a --CH2 -- group, thereby forming a keto-containing ring member which may either be saturated or unsaturated.