Pd(0)-catalyzed domino C–N coupling/hydroamination/C–H arylation reactions: efficient synthesis and photophysical properties of azaindolo[1,2-f]phenanthridines

2016 ◽  
Vol 14 (4) ◽  
pp. 1293-1301 ◽  
Author(s):  
Thang Ngoc Ngo ◽  
Frank Janert ◽  
Peter Ehlers ◽  
Do Huy Hoang ◽  
Tuan Thanh Dang ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Efficient Synthesis

A series of new 7- and 4-azaindolo[1,2-f]phenanthridines were synthesized by a domino Pd(0)-catalyzed reaction, which involves three sequential steps: C–N coupling, hydroamination, and intramolecular C–H arylation.

Synthesis and photophysical properties of 5-(3''-alkyl/aryl-amino-1''-azaindolizin-2''-yl)-2'-deoxyuridines

2021 ◽  
Author(s):  
Sandeep Kumar ◽  
Sumit Kumar ◽  
Jyotirmoy Maity ◽  
Banty Kumar ◽  
Shilpika Bali ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Efficient Synthesis ◽  
Alkyl Aryl ◽  
Gbb Reaction

Groebke-Blackburn-Bienayame (GBB) reaction has been used for the efficient synthesis of novel fluorescent 5-azaindolizino-2'-deoxyuridines starting from commercially available thymidine following two strategies. Thus, thymidine was converted to diacetylthymidine, which on...

The Versatility of the Aryne–Imine–Aryne Coupling for the ­Synthesis of Acridinium Photocatalysts

Synlett ◽  
2021 ◽  
Author(s):  
Christof Sparr ◽  
Valeriia Hutskalova
Keyword(s):  
Substitution Reaction ◽  
Precious Metal ◽  
Photophysical Properties ◽  
Cation Radical ◽  
Coupling Reaction ◽  
Nucleophilic Aromatic Substitution ◽  
The Novel ◽  
Aromatic Substitution ◽  
Efficient Synthesis

AbstractThe increasing use of acridinium photocatalysts as sustainable alternative to precious metal-based counterparts encourages the design and efficient synthesis of distinct catalyst structures. Herein, we report our exploration of the scope of the aryne–imine–aryne coupling reaction combined with a subsequent acridane oxidation for a short two-step approach towards various acridinium salts. The photophysical properties of the novel photocatalysts were investigated and the practical value was demonstrated by a cation-radical accelerated nucleophilic aromatic substitution reaction.

Novel Fluorophores: Efficient Synthesis and Photophysical Properties

2004 ◽  
Vol 6 (5) ◽  
pp. 739-742 ◽  
Author(s):  
Rémi Métivier ◽  
Rémi Amengual ◽  
Isabelle Leray ◽  
Véronique Michelet ◽  
Jean-Pierre Genêt
Keyword(s):  
Photophysical Properties ◽  
Efficient Synthesis

Efficient Synthesis of Tris-Heteroleptic Iridium(III) Complexes Based on the Zn2+-Promoted Degradation of Tris-Cyclometalated Iridium(III) Complexes and Their Photophysical Properties

2016 ◽  
Vol 56 (2) ◽  
pp. 812-833 ◽  
Author(s):  
Yuichi Tamura ◽  
Yosuke Hisamatsu ◽  
Sarvendra Kumar ◽  
Taiki Itoh ◽  
Kyouhei Sato ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Efficient Synthesis

π-Extended Helical Nanographenes: Synthesis and Photophysical Properties of Naphtho[1,2-a]pyrenes

2020 ◽  
Author(s):  
Paban Sitaula ◽  
Ryan Malone ◽  
Giovanna Longhi ◽  
Sergio Abbate ◽  
Eva Gualtieri ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Raman Spectra ◽  
Photophysical Properties ◽  
Enantiomeric Separation ◽  
Efficient Synthesis ◽  
Broad Scope ◽  
Td Dft ◽  
Pyrene Derivatives

A mild and efficient synthesis of a broad scope of substituted naphtho[1,2-<i>a</i>]pyrene derivatives was accomplished in good yields using an InCl<sub>3</sub>/AgNTf<sub>2</sub>-mediated two-fold alkyne benzannulation reaction. HPLC enantiomeric separation was achieved and the interconversion barriers have been determined. The ECD spectra of two derivatives were recorded and interpreted through TD-DFT calculations. Raman spectra were also recorded and predicted through DFT calculations.

Synthesis and properties of B,N-bridged p-terphenyls

2014 ◽  
Vol 50 (7) ◽  
pp. 782-784 ◽  
Author(s):  
Dong-Mei Chen ◽  
Qian Qin ◽  
Zuo-Bang Sun ◽  
Qian Peng ◽  
Cui-Hua Zhao
Keyword(s):  
Photophysical Properties ◽  
Efficient Synthesis ◽  
Conjugated Molecules ◽  
New Class

We describe the efficient synthesis and intriguing photophysical properties of a new class of ladder π-conjugated molecules, B,N-bridged p-terphenyls.

An efficient synthesis of triazolium ion based NHC precursors using diaryliodonium salts and their photophysical properties

2018 ◽  
Vol 16 (40) ◽  
pp. 7340-7345 ◽  
Author(s):  
Meenakshi Pilania ◽  
Mostofa Ataur Rohman ◽  
V. Arun ◽  
Manish Kumar Mehra ◽  
Sivaprasad Mitra ◽  
...  
Keyword(s):  
Fluorescent Probes ◽  
Photophysical Properties ◽  
Efficient Synthesis ◽  
Diaryliodonium Salts ◽  
Triazolium Salts

Triazolium salts were prepared by copper-catalyzed N-arylation of fused triazoles using diaryliodonium salts. These salts could behave as versatile NHC catalysts and fluorescent probes.

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