700845-97-2

Upstream product

• 623-27-8 terephthalaldehyde, 
• 4181-05-9 4-(diphenylamino)benzaldehyde 
• 25069-40-3 [4-(diphenylamino)phenyl]methanol 
• 603-34-9 N,N-diphenylaminobenzene 
• 591-50-4 iodobenzene 
• 1335205-52-1 C₂₅H₃₁NP⁽¹⁺⁾*Cl^(1-) 
• 52010-97-6 4-(hydroxylmethyl)benzaldehyde 
• 122-39-4 diphenylamine 
• 67249-03-0 E-4-[2-(4-bromo-phenyl)-vinyl]-benzoic acid methyl ester 
• 666830-55-3 trans-4-(N,N-diphenylamino)-4'-(methoxycarbonyl)stilbene 

Downstream Products

• 1335205-58-7 C₃₈H₂₈N₂O₂ 
• 700845-98-3 trans-4-(N,N-diphenylamino)-4'-(phthalimidomethyl)stilbene 

Relevant academic research and scientific papers

An iterative approach toward the synthesis of discrete oligomeric p-phenylene vinylene organic dyes employing aqueous Wittig chemistry

Photovoltaic research has become increasingly prominent as the search for alternatives to fossil fuels are actively sought. A novel process for the iterative synthesis of discrete donor/acceptor-flanked oligostilbenes, key constituents in dye-sensitized solar cells, is described. The aqueous Wittig process is high yielding, proceeds with high (E)-stereoselectivity and allows facile product purification.

Zn(II)-Induced Ground-State π-Deconjugation and Excited-State Electron Transfer in N,N-Bis(2-pyridyl)amino-Substituted Arenes

The synthesis and X-ray crystal structures of two N,N-bis(2-pyridyl)amino (dpa)-substituted aromatic systems (Ar-dpa) 1 (Ar = 4,4′-disubstituted trans-stilbene) and 2 (Ar = 1,4-disubstituted benzene) and their ZnCl 2 complexes (1/ZnCl2 and 2/ZnCl2) are reported. The fluoroionophoric behavior of 1-2 in response to Zn(II) in acetonitrile also has been investigated. In addition, compound 3DPA has been prepared and served as a π-deconjugated model for 1DPA. The observed crystal structures for 1/ZnCl2 and 2/ZnCl2 could be divided into two distinct types, the planar and the twisted forms, depending on the aryl-dpa (Cph-NC3) dihedral angle. The twisted form is more favorable for these complexes unless the arene has a strong " push-pull" character. Nonetheless, the degree of π-conjugation between the N-pyridyl and the N-aryl group is reduced in both complex forms when compared with the free ligands. Such a Zn(II)-induced π-deconjugation not only directly affects the internal charge transfer (ICT) fluorescence of the dpa-substituted stilbenes but also facilitates the occurrence of photoinduced electron transfer (PET) from the stilbene donor to the dpa/Zn(II) acceptor. The PET process is particularly important in accounting for the observed Zn-(II)-induced fluorescence quenching for 1DPA as well as 3DPA.

Porphyrins with enhanced multi-photon absorption cross-sections for photodynamic therapy

A method of increasing the multi-photon absorption cross-section of a porphyrin-based photosensitizer by attaching at least one TPA-chromophore at the meso- or beta-positions of a porphyrin structure of the porphyrin-based photosensitizer, and at least on