The Heck reaction as a tool to expand polyoxovanadates towards thiol-sensitive organic–inorganic hybrid fluorescent switches

2018 ◽  
Vol 47 (41) ◽  
pp. 14402-14407 ◽  
Author(s):  
Oliver Linnenberg ◽  
Lisa Mayerl ◽  
Kirill Yu. Monakhov
Keyword(s):  
Heck Reaction ◽  
Cross Coupling ◽  
Reducing Agents ◽  
Coupling Reactions ◽  
Inorganic Hybrid ◽  
Cross Coupling Reactions ◽  
Opening Up ◽  
The Way

Pd-catalysed Heck cross-coupling reactions between organically-tailored polyoxovanadates and a variety of olefins were realised. The synthesised organic–inorganic hybrids pave the way for the redox-driven luminescence switching, opening up great perspectives in tracing smart reducing agents such as e.g. toxic thiols.

scholarly journals Rapid Access to Diverse Potassium Acyltrifluoroborates (KATs) Through Late-Stage Chemoselective Cross-Coupling Reactions

2020 ◽  
Author(s):  
Xingwang Deng ◽  
Guan Zhou ◽  
Xiao Han ◽  
Khadim Ullah ◽  
Rajavel Srinivasan
Keyword(s):  
Late Stage ◽  
Materials Science ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Library Synthesis ◽  
Reaction Conditions ◽  
Cross Coupling Reactions ◽  
Rapid Diversification ◽  
High Yields ◽  
Opening Up

Potassium acyltrifluoroborates (KATs) are opening up new avenues in chemical biology, materials science and synthetic organic chemistry due to their intriguing reactivities. However, the synthesis of these compounds remains mostly complicated and time-consuming. This lack of a rapid and facile synthetic route has hindered the widespread adoption of KAT-based chemistry, especially in the areas of compound library synthesis and drug discovery. Herein, we have developed chemoselective Pd-catalyzed approaches for the late-stage diversification of arenes bearing pre-functionalized KATs. These approaches feature chemoselective cross-coupling, rapid diversification, functional group tolerance, mild reaction conditions, and high yields.

Novel glycosyl pyridyl-triazole@palladium nanoparticles: efficient and recoverable catalysts for C–C cross-coupling reactions

2015 ◽  
Vol 5 (4) ◽  
pp. 2065-2071 ◽  
Author(s):  
Hongyun Shen ◽  
Chao Shen ◽  
Chao Chen ◽  
Anming Wang ◽  
Pengfei Zhang
Keyword(s):  
Heck Reaction ◽  
Palladium Nanoparticles ◽  
Cross Coupling ◽  
Sonogashira Reaction ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Recoverable Catalysts

A series of glycosyl pyridyl-triazole@palladium nanoparticles have been prepared and applied in efficient C–C coupling such as Suzuki–Miyaura coupling, Heck reaction and Sonogashira reaction.

scholarly journals Palladium catalyzed Suzuki cross-coupling of benzyltrimethylammonium salts via C–N bond cleavage

RSC Advances ◽  
2017 ◽  
Vol 7 (26) ◽  
pp. 15805-15808 ◽  
Author(s):  
Tao Wang ◽  
Shuwu Yang ◽  
Silin Xu ◽  
Chunyu Han ◽  
Ge Guo ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Efficient Approach ◽  
Highly Efficient ◽  
Cross Coupling Reactions ◽  
Palladium Catalyzed ◽  
The Way

A Pd catalyzed Suzuki cross-coupling of a benzyltrimethylammonium salt is described. This reaction offers a highly efficient approach to diarylmethanes and also paves the way for the application of benzyltrimethylammonium salts in Pd catalyzed cross-coupling reactions.

scholarly journals Rapid Access to Diverse Potassium Acyltrifluoroborates (KATs) Through Late-Stage Chemoselective Cross-Coupling Reactions

2020 ◽  
Author(s):  
Xingwang Deng ◽  
Guan Zhou ◽  
Xiao Han ◽  
Khadim Ullah ◽  
Rajavel Srinivasan
Keyword(s):  
Late Stage ◽  
Materials Science ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Library Synthesis ◽  
Reaction Conditions ◽  
Cross Coupling Reactions ◽  
Rapid Diversification ◽  
High Yields ◽  
Opening Up

Potassium acyltrifluoroborates (KATs) are opening up new avenues in chemical biology, materials science and synthetic organic chemistry due to their intriguing reactivities. However, the synthesis of these compounds remains mostly complicated and time-consuming. This lack of a rapid and facile synthetic route has hindered the widespread adoption of KAT-based chemistry, especially in the areas of compound library synthesis and drug discovery. Herein, we have developed chemoselective Pd-catalyzed approaches for the late-stage diversification of arenes bearing pre-functionalized KATs. These approaches feature chemoselective cross-coupling, rapid diversification, functional group tolerance, mild reaction conditions, and high yields.

scholarly journals Supercritical water assisted preparation of recyclable gold nanoparticles and their catalytic utility in cross-coupling reactions under sustainable conditions

2019 ◽  
Vol 1 (8) ◽  
pp. 3177-3191 ◽  
Author(s):  
Abbasriyaludeen Abdul Raheem ◽  
Pitchai Thangasamy ◽  
Marappan Sathish ◽  
Chandrasekar Praveen
Keyword(s):  
Gold Nanoparticles ◽  
Supercritical Water ◽  
Cross Coupling ◽  
Environmentally Friendly ◽  
Reducing Agents ◽  
Coupling Reactions ◽  
Supercritical Conditions ◽  
Cross Coupling Reactions ◽  
Catalytic Application

Preparation of gold nanoparticles (AuNPs) in environmentally friendly water without using any reducing agents under supercritical conditions is demonstrated and their catalytic application in cross-coupling chemistry was showcased.

scholarly journals Tetradentate N2O2Chelated Palladium(II) Complexes: Synthesis, Characterization, and Catalytic Activity towards Mizoroki-Heck Reaction of Aryl Bromides

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Siti Kamilah Che Soh ◽  
Mustaffa Shamsuddin
Keyword(s):  
Schiff Base ◽  
Catalytic Activity ◽  
Heck Reaction ◽  
Cross Coupling ◽  
Schiff Base Complexes ◽  
Spectroscopic Methods ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Aryl Bromides ◽  
Elemental Analyses

Four air and moisture-stable palladium(II)-Schiff base complexes,N,N′-bis(α-methylsalicylidene)propane-1,3-diamine palladium(II) (2a),N,N′-bis(4-methyl-α-methylsalicylidene)propane-1,3-diamine palladium(II) (2b),N,N′-bis(3,5-di-tert-butylsalicylidene)propane-1,3-diamine palladium(II) (2c), andN,N′-bis(4-methoxy-salicylidene)propane-1,3-diamine palladium(II) (2d), have been successfully synthesised and characterised by CHN elemental analyses and conventional spectroscopic methods. These complexes were investigated as catalysts in the phosphine-free Mizoroki-Heck cross-coupling reactions of aryl bromides with methyl acrylate.

Nickel-catalyzed cross-coupling of aldehydes with aryl halides via hydrazone intermediates

2018 ◽  
Vol 54 (14) ◽  
pp. 1750-1753 ◽  
Author(s):  
Jianting Tang ◽  
Leiyang Lv ◽  
Xi-Jie Dai ◽  
Chen-Chen Li ◽  
Lu Li ◽  
...  
Keyword(s):  
Chemical Synthesis ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Aryl Halides ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Cross Coupling Reaction ◽  
Classical Cross ◽  
Opening Up

A novel nickel-catalyzed cross-coupling reaction between aldehydes and aryl halides via hydrazone intermediates has been developed. It merges the Wolff–Kishner reduction and classical cross-coupling reactions, thus opening up new routes in designing chemical synthesis.

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