ChemInform Abstract: Stereocontrolled Synthesis of Enantiomerically Pure Dienyl Sulfoxides via Palladium-Catalyzed Coupling Reaction.

ChemInform ◽  
2010 ◽  
Vol 24 (36) ◽  
pp. no-no
Author(s):  
R. S. PALEY ◽  
A. DE DIOS ◽  
R. F. DE LA PRADILLA
Keyword(s):  
Coupling Reaction ◽  
Enantiomerically Pure ◽  
Stereocontrolled Synthesis ◽  
Palladium Catalyzed

Stereocontrolled synthesis of enantiomerically pure 2-dienyl sulfoxides via palladium-catalyzed coupling reactions

1995 ◽  
Vol 36 (21) ◽  
pp. 3605-3608 ◽  
Author(s):  
Robert S. Paley ◽  
Heather L. Weers ◽  
Paloma Fernández ◽  
Roberto Fernández de la Pradilla ◽  
Sonia Castro
Keyword(s):  
Coupling Reactions ◽  
Enantiomerically Pure ◽  
Stereocontrolled Synthesis ◽  
Palladium Catalyzed

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>

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