1025-29-2Relevant academic research and scientific papers
Indolizine-Cyanine Dyes: Near Infrared Emissive Cyanine Dyes with Increased Stokes Shifts
Gayton, Jacqueline,Autry, Shane A.,Meador, William,Parkin, Sean R.,Hill, Glake Alton,Hammer, Nathan I.,Delcamp, Jared H.
, p. 687 - 697 (2019/01/11)
Molecular engineering strategies designed to red-shift cyanine dye absorptions and emissions further into the near-infrared (NIR) spectral region are explored. Through the use of a novel donor group, indolizine, with varying cyanine bridge lengths, dye absorptions and emissions, were shifted deeper into the NIR region than common indoline-cyanines. Stokes shifts resulting from intramolecular steric interactions of up to ?60 nm in many cases were observed and explained computationally. Molecular brightnesses of up to 5800 deep into the NIR region were observed. Structure-property relationships are explored for the six indolizine-cyanine dyes with varying cyanine bridge length and indolizine substituents showing broad absorption and emission tunability. The dyes are characterized by crystallography, and the photophysical properties are probed by varying solvent for absorption and emission studies. Computational data show involvement of the entire indolizine ?-system during light absorption, which suggests these systems can be tunable even further into the NIR region through select derivatizations.
INDOLIZINE-BASED DYES FOR DYE-SENSITIZED SOLAR CELL
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Page/Page column 33; 38; 39, (2016/04/01)
Compounds for use as sensitizer dyes in dye-sensitized solar cells.
Synthesis of functionalized indolizines via copper-catalyzed annulation of 2-alkylazaarenes with α,β-unsaturated carboxylic acids
Yang, Yuzhu,Xie, Chunsong,Xie, Yongju,Zhang, Yuhong
supporting information; experimental part, p. 957 - 959 (2012/04/04)
A novel copper-catalyzed annulation of 2-alkylazaarenes with α,β-unsaturated carboxylic acids has been accomplished. This reaction featuring C-H olefination and decarboxylative amination processes provides a concise access to C-2 arylated indolizines from simple and readily available starting materials.
A Practical Parallel Synthesis of 2-Substituted Indolizines
Chai, Wenying,Kwok, Annette,Wong, Victoria,Carruthers, Nicholas I.,Wu, Jiejun
, p. 2086 - 2088 (2007/10/03)
A practical parallel synthesis of 2-substituted indolizines 4 via phase-separation techniques is reported. Their further transformation into indolizidines 5 is also described.
Non-imidazole heterocyclic histamine H3 receptor antagonists
Chai, Wenying,Breitenbucher, J. Guy,Kwok, Annette,Li, Xiaobing,Wong, Victoria,Carruthers, Nicholas I.,Lovenberg, Timothy W.,Mazur, Curt,Wilson, Sandy J.,Axe, Frank U.,Jones, Todd K.
, p. 1767 - 1770 (2007/10/03)
Continued exploration of the SAR around the lead imidazopyridine histamine H3 antagonist 1 has led to the discovery of several related series of heterocyclic histamine H3 antagonists. The synthesis and SAR of indolizine, indole and p
Synthesis and estrogen receptor binding affinities of novel pyrrolo[2,1,5-cd]indolizine derivatives
Jorgensen, Anker Steen,Jacobsen, Poul,Christiansen, Lise Brown,Bury, Paul S.,Kanstrup, Anders,Thorpe, Susan M.,Narum, Lars,Wassermann, Karsten
, p. 2383 - 2386 (2007/10/03)
A series of pyrrolo[2,1,5-cd]indolizine derivatives has been synthesized and evaluated as ligands for the estrogen receptor. Properly substituted mono- and di-hydroxy derivatives showed binding in the low nanomolar range in accordance with their structural resemblance to estrogen. (C) 2000 Elsevier Science Ltd.
