19919-86-9

Upstream product

• 61520-36-3 β-Hydroxy-α-thiobenzoylstyren 
• 62-53-3 aniline 
• 98-86-2 acetophenone 
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• 1749-19-5 phenyl(1-phenylethylidene)amine 
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• 71115-31-6 3-imino-1,3,N-triphenylprop-1-enylamine 

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• 106291-98-9 (1R,3S)-1,3,N,N'-Tetraphenyl-propane-1,3-diamine 
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• 742-43-8 1,3-diphenyl-3-(N-phenylamino)propanone 

Relevant academic research and scientific papers

Boron diiminate with aggregation-induced emission and crystallization- induced emission-enhancement characteristics

Organoboron complexes having aggregation- and crystalization-induced emission properties are presented. The series of boron diiminates were synthesized and the emission behaviors of the synthesized compounds were investigated. Finally, it was found that s

Functionalization of boron diiminates with unique optical properties: Multicolor tuning of crystallization-induced emission and introduction into the main chain of conjugated polymers

In this article, we report the unique optical characteristics of boron diiminates in the solid states. We synthesized the boron diiminates exhibiting aggregation-induced emission (AIE). From the series of optical measurements, it was revealed that the optical properties in the solid state should be originated from the suppression of the molecular motions of the boron diiminate units. The emission colors were modulated by the substitution effects (λPL,crystal = 448-602 nm, λPL,amorphous = 478-645 nm). Strong phosphorescence was observed from some boron diiminates deriving from the effects of two imine groups. Notably, we found some of boron diiminates showed crystallization-induced emission (CIE) properties derived from the packing differences from crystalline to amorphous states. The 15-fold emission enhancement was observed by the crystallization (φPL,crystal = 0.59, φPL,amorphous = 0.04). Next, we conjugated boron diiminates with fluorene. The synthesized polymers showed good solubility in the common solvents, film formability, and thermal stability. In addition, because of the expansion of main-chain conjugation, the peak shifts to longer wavelength regions were observed in the absorption/emission spectra of the polymers comparing to those of the corresponding boron diiminate monomers (λabs = 374-407 nm, λPL = 509-628 nm). Furthermore, the absorption and the emission intensities were enhanced via the light-harvesting effect by the conjugation with fluorene. Finally, we also demonstrated the dynamic reversible alterations of the optical properties of the polymer thin films by exposing to acidic or basic vapors.

Synthesis of N-Aryl-substituted 2-Aminoalkyl Ketones and 1,3-Alkanediamines

4-Amino-1-azabutadienes (3-amino-2-alkenimines) react with Schiff bases to afford N,N-disubstituted 4-amino-1-azabutadienes.Both the starting and the product 4-amino-1-azabutadienes can be reductively cleaved with lithium aluminum hydride followed by hydr