575451-86-4

Upstream product

• 542-69-8 1-iodo-butane 
• 84632-54-2 3,6-bis(4-bromophenyl)-2,5-dihydropyrrolo[3, 4-c]pyrrole-1,4-dione 
• 109-65-9 1-bromo-butane 

Downstream Products

• 1384291-32-0 3,6-bis(4-bromophenyl)-2,5-di(n-butyl)pyrrolo[3,4-c]pyrrole-1,4-dione 
• 1384291-33-1 C₄₉H₄₃N₃O₄ 
• 1384291-34-2 C₅₂H₄₄N₄O₅ 
• 1204707-29-8 3-[4-[4-(N,N-bis(4-methoxyphenyl)amino)phenyl]phenyl]-6-(4-bromophenyl)-2,5-di-n-butyl-pyrrolo[3,4-c]pyrrole-1,4-dione 

Relevant academic research and scientific papers

The synthesis of red dyes based on diketo-pyrrolo-pyrrole chromophore to improve heat stability and solubility for colour filter fabrication

To replace the conventional red pigment derived from diketo-pyrrolo-pyrrole by new red dyes prepared in this research, an acetylene linkage was introduced between N-alkyl diketo-pyrrolo-pyrrole and naphthalimidyl moiety. TGA analyses and solubility measur

Phenothiazin-: N -yl-capped 1,4-diketo-3,6-diphenylpyrrolo[3,4- c] pyrrole exhibiting strong two-photon absorption and aggregation-enhanced one- and two-photon excitation red fluorescence

Water-soluble or water-dispersible two-photon dyes with strong fluorescence and large two-photon absorption (2PA) cross sections are very desirable for nano- and bio-photonics, but are still scarce. Herein, a new 1,4-diketo-3,6-diphenylpyrrolo[3,4-c]pyrrole derivative end-capped with two phenothiazin-N-yl donors (PDPP) is synthesized and its one- and two-photon optical properties are investigated in both solution and aqueous dispersions. The results show that PDPP exhibits solvent-independent one-photon solution absorption and emission properties with low fluorescence quantum yields, but strong red fluorescence in both aqueous dispersion and the crystalline state. This aggregation-enhanced emission (AEE) effect enables PDPP to have not only large 2PA cross sections but also a remarkably enhanced two-photon fluorescence action cross section in aqueous dispersions. Thus, 2PA-active PDPP is a promising candidate for two-photon science and technology.

New cyano-substituted organic dyes containing different electrophilic groups: Aggregation-induced emission and large two-photon absorption cross section

Three aggregation-induced emission active dyes (3a-c) were synthesized and their one- and twophoton absorption properties have been investigated. They were all found to be weakly fluorescent in THF solution, while they exhibited dramatic fluorescence enhancement in water/THF mixtures. The solid fluorescence of 3a-c was recorded and their fluorescence quantum efficiency (φf) values were determined to be 8.0%, 8.1%, and 16.4%, respectively. Moreover, the two-photon absorption (2PA) crosssections (σ) of 3a-c were measured and 3a showed the highest value of 702 GM The excellent aggregation-induced emission and 2PA properties provide a promising alternative for biophotonic materials.