T-Shaped donor–acceptor–donor type tetraphenylethylene substituted quinoxaline derivatives: aggregation-induced emission and mechanochromism

2017 ◽  
Vol 41 (17) ◽  
pp. 9346-9353 ◽  
Author(s):  
Anupama Ekbote ◽  
Thaksen Jadhav ◽  
Rajneesh Misra
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Aggregation Induced Emission ◽  
Cross Coupling Reaction ◽  
Quinoxaline Derivatives ◽  
Donor Type ◽  
Donor Acceptor

T-Shaped D–A–D type tetraphenylethylene (TPE) substituted acenapthene-quinoxaline1and TPE substituted phenanthrene quinoxaline2were synthesized by the Suzuki cross-coupling reaction and exhibits highly reversible mechanochromic behavior.

Synthesis and electrochemical polymerization of diketopyrrolopyrrole based donor–acceptor–donor monomers containing 3,6- and 2,7-linked carbazoles

2016 ◽  
Vol 7 (39) ◽  
pp. 6110-6119 ◽  
Author(s):  
Merve Akbayrak ◽  
Ahmet M. Önal
Keyword(s):  
Electrochemical Polymerization ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Type ◽  
Donor Acceptor

Three new donor–acceptor–donor type monomers bearing 2,7- or 3,6-linked carbazoles as the donor unit and diketopyrrolopyrrole as the acceptor unit were synthesized via a Suzuki cross coupling reaction.

ChemInform Abstract: Donor-Acceptor Substituted 2-Phenylpyridines by Means of Reductive C,C-Cross Coupling Reaction.

ChemInform ◽  
2016 ◽  
Vol 47 (52) ◽  
Author(s):  
Sebastian Triller ◽  
Tim Dittmann ◽  
Mareike Bendig ◽  
Jan Schnelle ◽  
Tom Friedmann ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Acceptor

Selective Stepwise Suzuki Cross-Coupling Reaction for the Modelling of Photosynthetic Donor−Acceptor Systems

2010 ◽  
Vol 12 (1) ◽  
pp. 196-199 ◽  
Author(s):  
Mikhail A. Filatov ◽  
Roger Guilard ◽  
Pierre D. Harvey
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Acceptor

scholarly journals Synthesis of new piperazinyl-pyrrolo[1,2-a]quinoxaline derivatives as inhibitors of Candida albicans multidrug transporters by a Buchwald–Hartwig cross-coupling reaction

RSC Advances ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 2915-2931
Author(s):  
Jean Guillon ◽  
Shweta Nim ◽  
Stéphane Moreau ◽  
Luisa Ronga ◽  
Solène Savrimoutou ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Drug Efflux ◽  
Multidrug Transporters ◽  
Cross Coupling Reaction ◽  
Quinoxaline Derivatives

Two series of piperazinyl-pyrrolo[1,2-a]quinoxaline derivatives were prepared via a Buchwald–Hartwig cross-coupling reaction and then evaluated for their ability to inhibit the drug efflux activity of two Candida albicans transporters.

Effect of the cyano group on solid state photophysical behavior of tetraphenylethene substituted benzothiadiazoles

2015 ◽  
Vol 3 (35) ◽  
pp. 9063-9068 ◽  
Author(s):  
Thaksen Jadhav ◽  
Bhausaheb Dhokale ◽  
Rajneesh Misra
Keyword(s):  
Solid State ◽  
Cyano Group ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Donor Acceptor ◽  
Photophysical Behavior

Two unsymmetrical tetraphenylethene (TPE) substituted Donor–Acceptor (D–A) benzothiadiazoles (BTDs) 3a, and 3b were designed and synthesized by the Suzuki cross-coupling reaction.

Aggregation induced emission and mechanochromism in pyrenoimidazoles

2015 ◽  
Vol 3 (38) ◽  
pp. 9981-9988 ◽  
Author(s):  
Thaksen Jadhav ◽  
Bhausaheb Dhokale ◽  
Shaikh M. Mobin ◽  
Rajneesh Misra
Keyword(s):  
Solid State ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Color Contrast ◽  
Aggregation Induced Emission ◽  
Cross Coupling Reaction

Pyrene-based solid state emitters 3a and 3b were designed and synthesized by the Pd-catalyzed Suzuki cross-coupling reaction. Pyrenoimidazoles 3a and 3b exhibit strong AIE and reversible mechanochromic behavior with color contrast between blue and green.

Ferromagnetic Chain Based on Verdazyl-Nitroxide Diradical

2020 ◽  
Author(s):  
Evgeny Tretyakov ◽  
Svetlana Zhivetyeva ◽  
Pavel Petunin ◽  
Dmitry Gorbunov ◽  
Nina Gritsan ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Ferromagnetic Coupling ◽  
Nitronyl Nitroxide ◽  
Triplet Ground State ◽  
One Dimensional ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed ◽  
Ferromagnetic Chain ◽  
High Yields

<p>Verdazyl-nitroxide diradicals were synthesized using the palladium-catalyzed cross-coupling reaction of the corresponding iodoverdazyls with a nitronyl nitroxide-2-ide gold(I) complex with high yields (up to 82%). The synthesized diradicals were found to be highly thermally stable and have a singlet (D<i>E</i><sub>ST</sub> » -64 cm<sup>–1</sup>) or triplet ground state (D<i>E</i><sub>ST</sub> ³ 25 and 100 cm<sup>–1</sup>), depending on which canonical hydrocarbon diradical type they belong to. Upon crystallization, triplet diradicals form unique one-dimensional (1D) spin <i>S</i> = 1 chains of organic diradicals with intrachain ferromagnetic coupling of <i>J</i>′/<i>k</i><sub>B</sub> from 3 to 6 K.</p>

An Iron-Based Catalyst Enables The Enantioconvergent Synthesis of Chiral 1,1-Diarylalkanes Through a Suzuki-Miyaura Cross-Coupling Reaction

2020 ◽  
Author(s):  
Chet Tyrol ◽  
Nang Yone ◽  
Connor Gallin ◽  
Jeffery Byers
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Radical Intermediates ◽  
Cross Coupling Reactions ◽  
Cross Coupling Reaction ◽  
Boronic Esters ◽  
Carbon Centered Radical ◽  
Iron Based ◽  
High Yields

By using an iron-based catalyst, access to enantioenriched 1,1-diarylakanes was enabled through an enantioselective Suzuki-Miyaura crosscoupling reaction. The combination of a chiral cyanobis(oxazoline) ligand framework and 1,3,5-trimethoxybenzene additive were essential to afford high yields and enantioselectivities in cross-coupling reactions between unactivated aryl boronic esters and a variety of benzylic chlorides, including challenging ortho-substituted benzylic chloride substrates. Mechanistic investigations implicate a stereoconvergent pathway involving carbon-centered radical intermediates.

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