Use of Base Control To Provide High Selectivity between Diaryl Thioether and Diaryl Disulfide for C–S Coupling Reactions of Aryl Halides and Sulfur and a Mechanistic Study

2013 ◽  
Vol 32 (19) ◽  
pp. 5514-5522 ◽  
Author(s):  
Hsing-Ying Chen ◽  
Wei-Te Peng ◽  
Ying-Hsien Lee ◽  
Yu-Lun Chang ◽  
Yen-Jen Chen ◽  
...  
Keyword(s):  
High Selectivity ◽  
Aryl Halides ◽  
Mechanistic Study ◽  
Coupling Reactions

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.

scholarly journals Biaryl Formation via Base-Promoted Direct Coupling Reactions of Arenes with Aryl Halides

ACS Omega ◽  
2021 ◽  
Author(s):  
Muhammad Asif Iqbal ◽  
Le Lu ◽  
Hina Mehmood ◽  
Ruimao Hua
Keyword(s):  
Direct Coupling ◽  
Aryl Halides ◽  
Coupling Reactions

ChemInform Abstract: A General and Efficient Catalyst for Palladium-Catalyzed C-O Coupling Reactions of Aryl Halides with Primary Alcohols.

ChemInform ◽  
2010 ◽  
Vol 42 (4) ◽  
pp. no-no
Author(s):  
Saravanan Gowrisankar ◽  
Alexey G. Sergeev ◽  
Pazhamalai Anbarasan ◽  
Anke Spannenberg ◽  
Helfried Neumann ◽  
...  
Keyword(s):  
Aryl Halides ◽  
Coupling Reactions ◽  
Primary Alcohols ◽  
Efficient Catalyst ◽  
Palladium Catalyzed

Water and Sodium Chloride: Essential Ingredients for Robust and Fast Pd‐Catalysed Cross‐Coupling Reactions between Organolithium Reagents and (Hetero)aryl Halides

2019 ◽  
Vol 131 (6) ◽  
pp. 1813-1816 ◽  
Author(s):  
Giuseppe Dilauro ◽  
Andrea Francesca Quivelli ◽  
Paola Vitale ◽  
Vito Capriati ◽  
Filippo Maria Perna
Keyword(s):  
Sodium Chloride ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Organolithium Reagents

Stereodivergent Hydrosilylation, Hydrostannylation, and Hydrogermylation of α-Trifluoromethylated Alkynes and Their Synthetic Applications

Synthesis ◽  
2016 ◽  
Vol 48 (19) ◽  
pp. 3317-3330 ◽  
Author(s):  
Cédric Tresse ◽  
Stéphane Schweizer ◽  
Philippe Bisseret ◽  
Jacques Lalevée ◽  
Gwilherm Evano ◽  
...  
Keyword(s):  
Functional Group ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Palladium Catalyzed

Stereoselective hydrometalation reactions of aryl- and alkyl-substituted trifluoromethylated alkynes with triethylsilane, tributylstannane, and triphenylgermane have been investigated. (E)-α-CF3-Vinylsilanes, -stannanes, and -germanes were obtained under palladium-catalyzed conditions whereas the corresponding (Z)-α-CF3-vinylgermanes were obtained under radical conditions. These reactions proceed in good to excellent yields and possess a broad functional group tolerance. Applications of the (Z)- and (E)-α-CF3-vinylgermanes in palladium-catalyzed cross-coupling reactions with aryl halides having diverse electronic requirements were also investigated. The corresponding (Z)- and (E)-α-CF3-styrenes were obtained as single isomers, thus demonstrating the utility of these versatile synthons for the synthesis of stereodefined trifluoromethylated alkenes.

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