ChemInform Abstract: Pd/C-Catalyzed Cross-Coupling Reaction of Benzyloxysilanes with Halosilanes for Selective Synthesis of Unsymmetrical Siloxanes.

ChemInform ◽  
2014 ◽  
Vol 45 (51) ◽  
pp. no-no
Author(s):  
Masayasu Igarashi ◽  
Keiko Kubo ◽  
Tomohiro Matsumoto ◽  
Kazuhiko Sato ◽  
Wataru Ando ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Selective Synthesis ◽  
Cross Coupling Reaction

ChemInform Abstract: Selective Synthesis of Partially Protected Nonsymmetric Biphenols by Reagent- and Metal-Free Anodic Cross-Coupling Reaction.

ChemInform ◽  
2016 ◽  
Vol 47 (52) ◽  
Author(s):  
Anton Wiebe ◽  
Dieter Schollmeyer ◽  
Katrin M. Dyballa ◽  
Robert Franke ◽  
Siegfried R. Waldvogel
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Selective Synthesis ◽  
Metal Free ◽  
Cross Coupling Reaction

Pd/C-catalyzed cross-coupling reaction of benzyloxysilanes with halosilanes for selective synthesis of unsymmetrical siloxanes

RSC Advances ◽  
2014 ◽  
Vol 4 (37) ◽  
pp. 19099 ◽  
Author(s):  
Masayasu Igarashi ◽  
Keiko Kubo ◽  
Tomohiro Matsumoto ◽  
Kazuhiko Sato ◽  
Wataru Ando ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Selective Synthesis ◽  
Cross Coupling Reaction

Highly Selective Synthesis of Hydrosiloxanes by Au-Catalyzed Dehydrogenative Cross-Coupling Reaction of Silanols with Hydrosilanes

ACS Catalysis ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 1836-1840 ◽  
Author(s):  
Yasushi Satoh ◽  
Masayasu Igarashi ◽  
Kazuhiko Sato ◽  
Shigeru Shimada
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Selective Synthesis ◽  
Cross Coupling Reaction

Selective Synthesis of Partially Protected Nonsymmetric Biphenols by Reagent- and Metal-Free Anodic Cross-Coupling Reaction

2016 ◽  
Vol 55 (39) ◽  
pp. 11801-11805 ◽  
Author(s):  
Anton Wiebe ◽  
Dieter Schollmeyer ◽  
Katrin M. Dyballa ◽  
Robert Franke ◽  
Siegfried R. Waldvogel
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Selective Synthesis ◽  
Metal Free ◽  
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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