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.

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.

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

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.

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.

Ni(0)-Catalyzed α-Allylic Alkylation of Regular Ketones with 1,3-Dienes under pH and Redox-neutral Conditions

2019 ◽  
Author(s):  
Tiantian Chen ◽  
Yang Yang ◽  
Liyu Xie ◽  
Haijian Yang ◽  
Guangbin Dong ◽  
...  
Keyword(s):  
Oxidative Addition ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Dual Role ◽  
Allylic Alkylation ◽  
Cross Coupling Reaction ◽  
Neutral Conditions

<p>We report a Ni(0)-catalyzed cross coupling reaction between simple ketones and 1,3-dienes. A variety of a-allylic alkylation products were formed in an 1,2-addition manner with excellent regioselectivity. Water was found to significantly accelerate this transformation. A HO-Ni-H species generated from oxidative addition of Ni(0) to H<sub>2</sub>O is proposed to play a “dual role” in activating both the ketone and the diene substrate.</p>

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