Use of palladium-catalyzed coupling reaction in synthesis of homobimetallic dimers: preparation of [bis(cyclopentadienyl)acetylene]metal complexes and their reaction with dicobalt octacarbonyl. Evidence for formation of dihydrido species in diiron complexes

1989 ◽  
Vol 8 (10) ◽  
pp. 2331-2337 ◽  
Author(s):  
Claudio. Lo Sterzo ◽  
M. M. Miller ◽  
J. K. Stille
Keyword(s):  
Metal Complexes ◽  
Coupling Reaction ◽  
Dicobalt Octacarbonyl ◽  
Palladium Catalyzed

Metallkomplexe 6,6′-Dialkinyl-substituierter 2,2′-Bipyridin-Liganden: Synthese und Struktur von [{6,6′-(CH3CH2CH2C = C)2bpy}Cu(Cl)(µ-Cl)]2 / Metal Complexes of 6,6′-Dialkynyl-Substituted 2,2′-Bipyridine Ligands: Synthesis and Structure of [{6,6′-(CH3CH2CH2C = C)2bpy}Cu(Cl)(µ-Cl)]2

1994 ◽  
Vol 49 (10) ◽  
pp. 1324-1328 ◽  
Author(s):  
Endre Kövári ◽  
Roland Krämer
Keyword(s):  
Nitrogen Atom ◽  
Metal Complexes ◽  
Steric Hindrance ◽  
Coupling Reaction ◽  
X Ray ◽  
X Ray Crystallography ◽  
Palladium Catalyzed

Abstract The bipyridyldiacetylene 6,6′-(CH3CH2CH2C = C)2bpy (1) was prepared by palladium catalyzed C - C - coupling reaction of 6,6′-dibromo-2,2′-bipyridine with pentyne. Reaction of 1 with anhydrous CuCl2 in acetonitrile gave the dimeric, chloro-bridged complex (1)Cu(Cl)(µ-Cl)2Cu(Cl)(1) (2), which was characterized by X-ray crystallography. The copper atoms in 2 are square-pyramidally coordinated with normal in-plane Cu - N and Cu - Cl bond distances and one longer, apical bond to the second bipyridyl nitrogen atom. The influence of steric hindrance of the bipyridyl 6,6′-substituents on the structure of the complex is discussed.

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>

scholarly journals Fluorinated Iron(ii) clathrochelate units in metalorganic based copolymers: improved porosity, iodine uptake, and dye adsorption properties

RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 14986-14995
Author(s):  
Suchetha Shetty ◽  
Noorullah Baig ◽  
Atikur Hassan ◽  
Saleh Al-Mousawi ◽  
Neeladri Das ◽  
...  
Keyword(s):  
Dye Adsorption ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Building Blocks ◽  
Adsorption Properties ◽  
Iodine Uptake ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed

We report the synthesis of metalorganic copolymers made from the palladium catalyzed Sonogashira cross-coupling reaction between various iron(ii) clathrochelate building blocks with diethynyl–triptycene and fluorene derivatives.

scholarly journals Mechanistic Aspects of the Palladium‐Catalyzed Suzuki‐Miyaura Cross‐Coupling Reaction

2021 ◽  
Author(s):  
Massimo C. D'Alterio ◽  
Èric Casals-Cruañas ◽  
Nikolaos V. Tzouras ◽  
Giovanni Talarico ◽  
Steven P Nolan ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed

Regioselective Oxidative Cross-Coupling Reaction: Synthesis of Imidazo[1,2-a]pyridine Fluorophores

Synthesis ◽  
2021 ◽  
Author(s):  
Xianglong Chu ◽  
Yadi Niu ◽  
Chen Ma ◽  
Xiaodong Wang ◽  
Yunliang Lin ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Quantum Yields ◽  
Fluorescence Quantum Yields ◽  
Cross Coupling Reaction ◽  
Color Tunable ◽  
Palladium Catalyzed ◽  
Structure Relationship ◽  
High Fluorescence

AbstractA rapid access to a series of N-heteroarene fluorophores has been developed on the basis of the palladium-catalyzed direct oxidative C–H/C–H coupling of imidazo[1,2-a]pyridines with thiophenes/furans. The photophysical properties–structure relationship was systematically investigated. The resulting N-heteroarene fluorophores present color-tunable emissions (λem: 431–507 nm in CH2Cl2) and high fluorescence quantum yields (up to 91% in CH2Cl2).

ChemInform Abstract: Palladium-Catalyzed Direct Cross-Coupling Reaction Between Indenes and Electron-Deficient Alkenes.

ChemInform ◽  
2010 ◽  
Vol 41 (43) ◽  
pp. no-no
Author(s):  
Yun-He Xu ◽  
Wee-Jian Wang ◽  
Zhen-Kang Wen ◽  
Joshua Jonathan Hartley ◽  
Teck-Peng Loh
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Cross Coupling Reaction ◽  
Direct Cross ◽  
Palladium Catalyzed
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