135722-63-3

Upstream product

• 603-34-9 N,N-diphenylaminobenzene 
• 36809-26-4 4-N,N-diphenylamino-1-bromobenzene 
• 5720-07-0 4-methoxyphenylboronic acid 
• 696-62-8 para-iodoanisole 
• 201802-67-7 4-(diphenylamino)phenyl boronic acid 
• 15183-74-1 1-methoxy-4-((trifluoromethyl)sulfonyl)benzene 
• 21502-70-5 tris(p-anisyl)antimony 
• 104-92-7 1-bromo-4-methoxy-benzene 
• 416857-85-7 10-hydroxy-10-methyl-2,2-diphenyl-2H-pyrano[6,5-b]fluorene 
• 122-39-4 diphenylamine 

Downstream Products

• 933066-97-8 [4-(2,2-diphenyl-2H-chromen-6-yl)-phenyl]-diphenyl-amine 
• 159892-55-4 4′?(N,N?diphenylamino)?[1,1′?biphenyl]?4?ol 

Relevant academic research and scientific papers

Pd Nanoparticles Embedded Into MOF-808: Synthesis, Structural Characteristics, and Catalyst Properties for the Suzuki–Miyaura Coupling Reaction

Abstract: A heterogeneous single-site catalyst Pd@MOF-808 was successfully synthesized by water-based, green synthesis procedure. The catalytic experiments exhibited the Pd@MOF-808 promoted efficiently the Suzuki–Miyaura coupling reaction without the assistance of organic phosphine ligands at atmospheric pressure conditions. The catalyst also could be applied in the gram-scale synthesis of industrially anti-inflanmatory analgestic Fenbufen. Graphic Abstract: [Figure not available: see fulltext.]

Palladium Supported on Silk Fibroin for Suzuki–Miyaura Cross-Coupling Reactions

Silk fibroin supported Pd (Pd/SF) has been prepared and used as catalyst in Suzuki–Miyaura cross-coupling reactions in water/ethanol (4:1 v/v) mixture. The reactions proceed rapidly with aryl iodides and boronic acids with different electronic properties using low metal loading (0.38 mol-%). Pd/SF exhibits better recyclability compared to other biopolymer-supported Pd catalysts, up to nineteen cycles without loss of activity.

Suzuki–Miyaura Coupling of (Hetero)Aryl Sulfones: Complementary Reactivity Enables Iterative Polyaryl Synthesis

Ideal organic syntheses involve the rapid construction of C?C bonds, with minimal use of functional group interconversions. The Suzuki–Miyaura cross-coupling (SMC) is a powerful way to form biaryl linkages, but the relatively similar reactivity of electrophilic partners makes iterative syntheses involving more than two sequential coupling events difficult to achieve without additional manipulations. Here we introduce (hetero)aryl sulfones as electrophilic coupling partners for the SMC reaction, which display an intermediate reactivity between those of typical aryl (pseudo)halides and nitroarenes. The new complementary reactivity allows for rapid sequential cross-coupling of arenes bearing chloride, sulfone and nitro leaving groups, affording non-symmetric ter- and quateraryls in only 2 or 3 steps, respectively. The SMC reactivity of (hetero)aryl sulfones is demonstrated in over 30 examples. Mechanistic experiments and DFT calculations are consistent with oxidative addition into the sulfone C?S bond as the turnover-limiting step. The further development of electrophilic cross-coupling partners with complementary reactivity may open new possibilities for divergent iterative synthesis starting from small pools of polyfunctionalized arenes.

Oxidative Cross-Coupling of Boron and Antimony Nucleophiles via Palladium(I)

The use of an isolatable, monomeric Pd(I) complex as a catalyst for the oxidative cross-coupling of aryl-antimony and aryl-boron nucleophiles is reported. This reaction tolerates a wide variety of substrates, with >20:1 selectivity for cross-coupled products. This strategy offers a new approach to achieving the selective cross-coupling of nucleophiles.

Carbonyl compound with diphenylbenzidine as conjugate main body structure as well as preparation method and application of carbonyl compound

The invention relates to the technical field of new material organic chemicals, in particular to a carbonyl group-containing novel photoinitiator with diphenylbenzidine as a conjugate main body structure, shown as a formula (I), a chemical preparation process technology of the carbonyl group-containing novel photoinitiator, use of the carbonyl group-containing novel photoinitiator as a radiation curing photoinitiator, a radiation curing formula product of the carbonyl group-containing novel photoinitiator and particularly application use of the carbonyl group-containing novel photoinitiator invarious places of photocureable coatings, printing ink or the like. The formula (I) is described in the following description.

Palladium-catalyzed ligand-free and aqueous Suzuki reaction for the construction of (hetero)aryl-substituted triphenylamine derivatives

This paper reports an efficient synthesis of triphenylamine (TPA) derivatives via a palladium-catalyzed Suzuki reaction of (hetero)aryl halides with 4-(diphenylamino)phenylboronic acid (DPBA) in aqueous ethanol under aerobic and ligand-free conditions. Heteroaryl halides, namely pyridyl bromides, quinolyl bromides, pyrimidinyl bromides, 2-chloropyrazine and sulfur-containing heteroaryl bromides, could react smoothly with DPBA, affording good to excellent yields under mild conditions. In addition, aryl bromides were also successfully employed in the cross-couplings with DPBA and furnished the products in high yields at room temperature. The cross-coupling of 4-bromobenzonitrile with DPBA gave the desired product in a quantitative yield within 2 min, resulting in a TOF up to 5820 h-1.

Very fast, ligand-free and aerobic protocol for the synthesis of 4-aryl-substituted triphenylamine derivatives

A fast, convenient and ligand-free protocol for the synthesis of a series of 4-aryl-substituted triphenylamine derivatives by a palladium-catalysed aerobic Suzuki reaction of aryl halides with [4-(diphenylamino)phenyl]boronic acid in aqueousiPrOH is described. Importantly, both aryl bromides and heteroaryl halides afforded good to excellent yields under mild conditions. A facile, efficient and general ligand-free Suzuki reaction in aqueous iPrOH is described. Under the optimized conditions, both aryl bromides and heteroaryl halidesreacted rapidly with [4-(diphenylamino)phenyl]boronic acid, providing a series of 4-aryl-substituted triphenylamine derivatives in good to excellent yields.

Photochromism of arylchromenes: Remarkable modification of absorption properties and lifetimes of o-quinonoid intermediates

(Chemical Equation Presented) A significant π-conjugation in 6- and 7-arylchromenes manifests dramatically in the absorption properties of their photogenerated o-quinonoid intermediates. This in conjunction with facile synthesis via Suzuki coupling may render a myriad of photochromic arylchromenes with wide-ranging spectrokinetic properties readily accessible.

Electron-transfer process in layered photoreceptors containing azo compounds

Photoinduced electron transfer (ET) is the most essential process for carrier photogeneration in organic optoelectronic devices. In azo compound- based layered photoreceptors, carrier photogeneration is sensitized by hole transport material (HTM) incorporation. We investigated this process to elucidate the highly sensitizing mechanism. First, the photoinduced ET efficiency and overall quantum efficiency were measured and compared for the layered photoreceptor and the carrier generation layer. The result that the HTM enhances the photoinduced ET implies that the HTM works catalytically to diminish the activation energy. Although such extrinsic ET takes place independently of an electric field, the subsequent geminate pair dissociation depends on the electric field. Next, the energy-gap dependence of the ET was investigated by employing more than 50 photoreceptors to vary the energy gap over a wide range. The measured efficiency was plotted against the energy gap, in which an inverted region was not observed.