406729-10-0

Upstream product

• 13041-70-8 (E)-4-bromostilbene 
• 122-39-4 diphenylamine 
• 100-42-5 styrene 
• 36809-26-4 4-N,N-diphenylamino-1-bromobenzene 
• 108-86-1 bromobenzene 
• 1520-21-4 4-vinyl benzylamine 
• 603-34-9 N,N-diphenylaminobenzene 
• 591-50-4 iodobenzene 
• 100-39-0 benzyl bromide 
• 1080-32-6 O,O-diethyl benzylphosphonate 
• 4181-05-9 4-(diphenylamino)benzaldehyde 
• 589-15-1 1-bromomethyl-4-bromobenzene 
• 38186-51-5 diethyl (4-bromobenzyl)phosphonate 

Downstream Products

• 89114-74-9 cis-4-(N,N-diphenylamino)stilbene 

Relevant academic research and scientific papers

The synthesis and photophysical properties of novel poly(diarylamino) styrenes

A series of novel diamines linked by varying conjugated bridges were characterized using FTIR, NMR and UV-visible spectroscopy, mass spectrometry and elemental analysis. The photoluminescence and thermal properties of the compounds were related to structure and quantum chemical calculations were employed to study the optimized ground state geometry of the compounds. The diarylamines exhibited blue to green fluorescence emission and displayed high thermal stability and high glass transition temperature. As such, the compounds might be very useful as hole-transporting materials in organic light-emitting diodes.

One pot sequential reactions and novel products produced thereby

A method for producing sequenced reaction products comprising performing, in one pot, a first reaction at a lower temperature followed by a second reaction at a higher temperature in the presence of a catalyst system comprising a proazahosphatrane in combination with a palladium compound is provided. In one embodiment, the first reaction is a double amination reaction and the second reaction is an arylation. Use of one pot and a single catalyst system for each set of sequential reactions is efficient and economical. Novel N,N-diarylaminostyrenes and N,N-diarylaminostilbenes are produced according to the methods described herein.

One-pot sequential N and C arylations: An efficient methodology for the synthesis of trans 4-N,N-diaryl aminostilbenes

(Chemical Equation Presented) A double-amination/intermolecular-Heck- reaction sequence is used as a one-pot methodology for sequential C-N and C-C bond formations. 4-Aminostyrene was coupled with aryl bromides and aryl iodides using a [Pd2(dba)3]/proazaphosphatrane catalyst system (dba = dibenzylideneacetone; see scheme) to form irons 4-N,N-diaryl aminostilbene derivatives in high yields, which are comparable to those of previously reported multistep syntheses.

Degenerate nonlinear absorption and optical power limiting properties of asymmetrically substituted stilbenoid chromophores

Two-photon absorption (2PA) spectra (650-1000 nm) of a series of model chromophores were measured via a newly developed nonlinear absorption spectral technique based on a single and powerful femtosecond white-light continuum beam. The experimental results suggested that when either an electron-donor or an electron-acceptor was attached to a trans-stilbene at a para-position, an enhancement in molecular two-photon absorptivity was observed in both cases, particularly in the 650-800 nm region. However, the push-pull chromophores with both the donor and acceptor groups showed larger overall two-photon absorption cross-sections within the studied spectral region as compared to their mono-substituted analogues. The combined results of the solvent effect and the 1H-NMR studies indicated that stronger acceptors produce a more efficient intramolecular charge transfer character upon excitation, leading to increased molecular two-photon responses in this model-compound set. A fairly good 2PA based optical power limiting behavior from one of the model chromophores is also demonstrated.

Fluorescence enhancement of trans-4-aminostilbene by N-phenyl substitutions: The "amino conjugation effect"

The synthesis, structure, and photochemical behavior of the trans isomers of 4-(N-phenylamino)-stilbene (1c), 4-(N-methyl-N-phenylamino)stilbene (1d), 4-(N,N-diphenylamino)stilbene (1e), and 4-(N-(2,6-dimethylphenyl)amino)stilbene (1f) are reported and co

Disazo triphenylamine compounds

A disazo compound, having the general formula, STR1 wherein Y represents a substituted or non-substituted cyclic hydrocarbon or substituted or non-substituted heterocycle; R represents hydrogen, substituted or non-substituted alkyl group, or substituted or non-substituted phenyl group; and Z represents a substituted or non-substituted cyclic hydrocarbon or heterocycle fused with phenyl nucleus.