Pd-Catalyst Containing a Hemilabile P,C-Hybrid Ligand in Amino Dicarbonylation of Aryl Halides for Synthesis of α-Ketoamides

2021 ◽  
Author(s):  
Shu-Qing Yang ◽  
Yin-Qing Yao ◽  
Xiao-Chao Chen ◽  
Yong Lu ◽  
Xiao-Li Zhao ◽  
...  
Keyword(s):  
Aryl Halides ◽  
Pd Catalyst

The role of magnetic nanoparticles (MNP) as reducing agents in an MNP-supported Pd–catalyst for the reductive homocoupling of aryl halides

2012 ◽  
Vol 90 (1) ◽  
pp. 138-144 ◽  
Author(s):  
Jie Zheng ◽  
Shengyue Lin ◽  
Bi-Wang Jiang ◽  
Todd B. Marder ◽  
Zhen Yang
Keyword(s):  
Magnetic Nanoparticles ◽  
Aryl Halide ◽  
Reducing Power ◽  
Cross Coupling ◽  
Reducing Agent ◽  
Aryl Halides ◽  
Pd Catalyst ◽  
Reductive Homocoupling ◽  
Supported Pd

A palladium pincer catalyst grafted onto the surface of magnetic nanoparticles (MNPs) has been developed. This material effectively catalyzes the reductive homocoupling of various aryl halide substrates, with the MNP support acting as the reducing agent. The catalyst can be recycled up to five times in the absence of additional reducing agent to give almost quantitative yields of biaryl homocoupling products. After the reducing power of the MNP has been depleted, the supported Pd complex remains an effective catalyst for Suzuki–Miyaura cross-coupling.

Highly active thiol-functionalized SBA-15 supported palladium catalyst for Sonogashira and Suzuki–Miyaura cross-coupling reactions

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1295-1300 ◽  
Author(s):  
Shaheen M. Sarkar ◽  
Md. Lutfor Rahman ◽  
Mashitah Mohd Yusoff
Keyword(s):  
Palladium Catalyst ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Pd Catalyst ◽  
Coupling Reactions ◽  
Supported Palladium Catalyst ◽  
Cross Coupling Reactions ◽  
Highly Active ◽  
Supported Palladium

SBA-15 supported heterogeneous Pd-catalyst was prepared and applied towards Sonogashira and Suzuki–Miyaura cross-coupling reactions of activated and inactivated aryl halides to give the corresponding coupling products in up to 98% yield.

scholarly journals Clean and fast cross-coupling of aryl halides in one-pot

2014 ◽  
Vol 10 ◽  
pp. 897-901 ◽  
Author(s):  
Valerica Pandarus ◽  
Geneviève Gingras ◽  
François Béland ◽  
Rosaria Ciriminna ◽  
Mario Pagliaro
Keyword(s):  
Cross Coupling ◽  
Aryl Halides ◽  
Environmental Benefits ◽  
High Yield ◽  
Pd Catalyst ◽  
Synthetic Methodology ◽  
One Pot ◽  
Aryl Bromides

Unsymmetrically coupled biaryls are synthesized in high yield starting from different aryl bromides and bis(pinacolato)diboron by carrying out the Miyaura borylation reaction followed by the Suzuki–Miyaura reaction in the same reaction pot over 1–2 mol % SiliaCat DPP-Pd. The SiliaCat DPP-Pd catalyst is air-stable and the method does not require the use of inert conditions. The use of non-toxic isopropanol or 2-butanol as reaction solvent further adds to the environmental benefits of this new green synthetic methodology.

scholarly journals Chelation-Accelerated Sequential Decarbonylation of Formate and Alkoxycarbonylation of Aryl Halides Using a Combined Ru and Pd Catalyst.

ChemInform ◽  
2003 ◽  
Vol 34 (26) ◽  
Author(s):  
Sangwon Ko ◽  
Chongmok Lee ◽  
Moon-Gun Choi ◽  
Youngim Na ◽  
Sukbok Chang
Keyword(s):  
Aryl Halides ◽  
Pd Catalyst

Chelation-Accelerated Sequential Decarbonylation of Formate and Alkoxycarbonylation of Aryl Halides Using a Combined Ru and Pd Catalyst

2003 ◽  
Vol 68 (4) ◽  
pp. 1607-1610 ◽  
Author(s):  
Sangwon Ko ◽  
Chongmok Lee ◽  
Moon-Gun Choi ◽  
Youngim Na ◽  
Sukbok Chang
Keyword(s):  
Aryl Halides ◽  
Pd Catalyst

Mild Temperature Copper-Catalyzed Amination of Aryl Halides with Aqueous Ammonia in the Presence of Pyridyldiketone Ligands

2019 ◽  
Author(s):  
Racha Abed Ali Abdine ◽  
Anna Walczak ◽  
Sultan Abu A Aeash ◽  
Gracjan Kurpik ◽  
Artur R. Stefankiewicz ◽  
...  
Keyword(s):  
Catalytic System ◽  
Aqueous Ammonia ◽  
Aryl Halides ◽  
Efficient Coupling ◽  
Ambidentate Ligand ◽  
Mild Temperature

Ambidentate ligand pyridyldiketones were used in combination with copper to catalyze maintain of aryl halides under very mild temperatures. This novel catalytic system allow efficient coupling in one of the smoothest conditions ever reported in literature.

Carbon-Heteroatom Cross-Coupling via an Electronically Excited Nickel (II) Complex

2019 ◽  
Author(s):  
Randolph Escobar ◽  
Jeffrey Johannes
Keyword(s):  
Energy Transfer ◽  
Functional Groups ◽  
Cross Coupling ◽  
Reductive Elimination ◽  
Aryl Halides ◽  
Coupling Reactions ◽  
General Methodology ◽  
Cross Coupling Reactions ◽  
Electronically Excited ◽  
Energy Transfer Pathway

<div>While carbon-heteroatom cross coupling reactions have been extensively studied, many methods are specific and</div><div>limited to a set of substrates or functional groups. Reported here is a method that allows for C-O, C-N and C-S cross coupling reactions under one general methodology. We propose that an energy transfer pathway, in which an iridium photosensitizer produces an excited nickel (II) complex, is responsible for the key reductive elimination step that couples aryl halides to 1° and 2° alcohols, anilines, thiophenols, carbamates and sulfonamides.</div>

Chiral Mn(III) Salen Complex Immobilized on CuFe2O4@SiO2-NH2 NPs: A Cheap and Efficient Catalyst for N-arylation of Aryl Halides and Phenylboronic Acid Under Mild Conditions

2020 ◽  
Vol 17 (11) ◽  
pp. 857-863
Author(s):  
Mohammad Ali Nasseri ◽  
Seyyedeh Ameneh Alavi ◽  
Milad Kazemnejadi ◽  
Ali Allahresani
Keyword(s):  
Phenylboronic Acid ◽  
Significant Loss ◽  
Aryl Halides ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Aryl Chlorides ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Salen Complex ◽  
Ft Ir

A convenient and efficient chiral CuFe2O4@SiO2-Mn(III) Ch.salen nanocatalyst has been developed for the C-N cross-coupling reactions of aryl halides/ phenylboronic acid with N-heterocyclic compounds in water and/or DMSO under mild conditions. The catalyst could be applied for the N-arylation of a variety of nitrogen-containing heterocycles with aryl chlorides, bromides, iodides and phenylboronic acid under mild conditions. Moderate to good yields were achieved for all substrates. The structure of catalyst was characterized using various techniques including FT-IR, FE-SEM, EDX, XRD, TEM and TGA. The catalyst can be simply recovered and reused for several times without significant loss of activity.

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