207669-94-1

Upstream product

• 122-39-4 diphenylamine 
• 65178-51-0 N-allyldiphenylamine 
• 68-12-2 N,N-dimethyl-formamide 

Downstream Products

• 336619-72-8 4-[N-(4-formylphenyl)amino]benzaldehyde 

Relevant academic research and scientific papers

Photophysical and electrochemical investigation of highly conjugated pyridine based diphenylamine materials

Three simple and small donor-acceptor type conjugated moieties, namely (2Z, 2′Z)-3,3'-((hexylazanediyl)bis (4,1-phenylene))bis (2-(pyridin-2-yl)acrylonitrile) (DPA-PA-1), (2Z, 2′Z)-3,3'-((dodecylazanediyl)bis (4,1-phenylene))bis (2-(pyridin-2-yl)acrylonit

Synthetic strategies to derivatizable triphenylamines displaying high two-photon absorption

(Chemical Equation Presented) A versatile synthetic strategy to access a set of highly fluorescent π-conjugated triphenylamines bearing a functional linker at various positions on one phenyl ring is described. These compounds were designed for large two-photon absorption (2PA) and in particular for labeling of biomolecules. The monoderivatized trisformylated or trisiodinated intermediates described herein allow introduction of a large variety of electron-withdrawing groups required for large 2PA as well as a panel of chemical functions suitable for coupling to biomolecules. The monoderivatized three-branched compounds and in particular the benzothiazole (TP-3Bz) series show remarkable linear (high extinction coefficients and high quantum yield) and nonlinear (high 2-photon cross sections) optical properties. Interestingly the presence of functional side chains does not disturb the two-photon absorption. Finally, monoderivatized two-branched derivatives also appear to be valuable candidates. Altogether the good optical properties of the new derivatizable π-conjugated TPA combined with their small size and their compatibility with bioconjugation protocols suggest that they represent a new chemical class of labels potentially applicable for the tracking of biomolecules using two-photon scanning microscopy.