Radical Metalloids with N-Heterocyclic Carbene and Phenanthroline Ligands: Synthesis, Properties, and Cross-Coupling Reaction of [(Nitronyl Nitroxide)-2-ido]metal Complexes with Aryl Halides

2018 ◽  
Vol 91 (7) ◽  
pp. 1150-1157 ◽  
Author(s):  
Kiyomi Yamada ◽  
Xun Zhang ◽  
Ryu Tanimoto ◽  
Shuichi Suzuki ◽  
Masatoshi Kozaki ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Nitronyl Nitroxide ◽  
Cross Coupling Reaction ◽  
Synthesis Properties ◽  
Phenanthroline Ligands

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>

ChemInform Abstract: A General and Inexpensive Protocol for the Cu-Catalyzed C-S Cross-Coupling Reaction Between Aryl Halides and Thiols.

ChemInform ◽  
2016 ◽  
Vol 47 (12) ◽  
pp. no-no
Author(s):  
Anns Maria Thomas ◽  
Sujatha Asha ◽  
K. S.. Sindhu ◽  
Gopinathan Anilkumar
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Cross Coupling Reaction

C(sp3)–H activation-enabled cross-coupling of two aryl halides: an approach to 9,10-dihydrophenanthrenes

2020 ◽  
Vol 56 (74) ◽  
pp. 10942-10945
Author(s):  
Yichao Gu ◽  
Xueliang Sun ◽  
Bin Wan ◽  
Zhuoer Lu ◽  
Yanghui Zhang
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Innovative Method ◽  
Cross Coupling Reaction ◽  
Chlorobenzoic Acids ◽  
Palladium Catalyzed

A palladium-catalyzed cross-coupling reaction of aryl halides with 2-chlorobenzoic acids has been developed through C(sp3)–H activation, which provides an innovative method for the synthesis of 9,10-dihydrophenanthren.

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