Nickel-Hydride Catalyzed Remote Hydroarylation of Olefins

Synlett ◽  
2021 ◽  
Author(s):  
Yuli He ◽  
Ran Tao ◽  
Shaolin Zhu
Keyword(s):  
Metal Hydride ◽  
Cross Coupling ◽  
Personal Account ◽  
The Past ◽  
Nickel Hydride ◽  
Selective Functionalization ◽  
Complementary Approach ◽  
Synergistic Combination ◽  
Chain Walking

Metal hydride-catalyzed remote hydrofunctionalization has attracted extensive attention in the past decade, as it provides a complementary approach for selective functionalization of remote C(sp3)–H bonds. Recently, a wide variety of olefinic remote hydrofunctionalizationation reactions have been realized through the synergistic combination of NiH-catalyzed chain-walking and Ni-catalyzed cross-coupling. In this personal account we discuss our recent achievement in the remote hydroarylation of olefins as well as our recent achievement in asymmetric hydroarylation.

Metal-Free Hydrogen Evolution Cross-Coupling Enabled by Synergistic Photoredox and Polarity Reversal Catalysis

2021 ◽  
Author(s):  
Jilei Cao ◽  
Xiaona Yang ◽  
Lishuang Ma ◽  
Kanghui Lu ◽  
Rong Zhou
Keyword(s):  
Hydrogen Evolution ◽  
Cross Coupling ◽  
Polarity Reversal ◽  
Metal Free ◽  
Free Hydrogen ◽  
Synergistic Combination

A synergistic combination of photoredox and polarity reversal catalysis enabled a hydrogen evolution cross-coupling of silanes with H2O, alcohols, phenols, and silanols, which afforded the corresponding silanols, monosilyl ethers, and...

scholarly journals Revisiting the Past, Narrating War Memories: Retelling the Falklands War in A Soldier’s Song

2021 ◽  
Vol 11 (1) ◽  
pp. 6-17
Author(s):  
Andrea Bellot
Keyword(s):  
Psychological Distress ◽  
Mass Media ◽  
Armed Conflict ◽  
Falkland Islands ◽  
British Army ◽  
Personal Account ◽  
The Past ◽  
Falklands War ◽  
War Memories

Private Ken Lukowiak was a member of the Second Battalion Parachute Regiment (2 PARA) of the British Army deployed to the Falkland Islands for the 1982 British-Argentine conflict. The veteran’s creative drive motivated him into writing down his memories, and writing helped him overcome his war traumas. This paper seeks to explore Lukowiak’s memoir as a work offering an alternative retelling of the Falklands War, based on a deep emotional framework, in contrast to the narrative of heroism favoured by mass media. His personal account emphasizes the psychological distress and detachment of a soldier in opposition to the supposedly exemplary and outstanding behaviour of troops as often portrayed in mainstream journalism during and after the armed conflict.

A General Approach to Selective Functionalization of 1,2,4-Triazines Using Organometallics in Palladium-Catalyzed Cross-Coupling and Addition Reactions.

ChemInform ◽  
2005 ◽  
Vol 36 (17) ◽  
Author(s):  
France-Aimee Alphonse ◽  
Franck Suzenet ◽  
Anne Keromnes ◽  
Bruno Lebret ◽  
Gerald Guillaumet
Keyword(s):  
Cross Coupling ◽  
Addition Reactions ◽  
Selective Functionalization ◽  
Palladium Catalyzed

The Equity of Remote Teaching During COVID-19

2022 ◽  
pp. 138-154
Author(s):  
Allison Victoria Wilson
Keyword(s):  
Second Grade ◽  
Personal Account ◽  
Social And Emotional ◽  
Emotional Factors ◽  
The Past ◽  
School Year ◽  
Grade Teacher

This chapter is written by a second-grade teacher who gives a personal account for remote teaching during quarantine and the 2020 - 2021 school year. The equity and diversity of various situations involved during the past year are discussed throughout the chapter: from the beginning of quarantine 2020 to the end of the school year in May 2021. Remote teaching, social and emotional factors, and the diversity of families are also addressed. The chapter is dedicated to Jordan Lea Darnell, a teacher who lost her battle to COVID-19 in the Spring of 2021.

Notes from the Field: Return to the Ruin that is Gaza

2007 ◽  
Vol 36 (3) ◽  
pp. 23-35
Author(s):  
Jennifer Loewenstein
Keyword(s):  
Personal Account ◽  
Parliamentary Elections ◽  
The Past ◽  
Uncertain Future ◽  
The Impact

This personal account of the author's November 2006 visit to Gaza, which coincided with Israel's launch of its ““Operation Autumn Clouds,”” examines the impact on the Strip of economic and military siege, which intensified following Hamas's victory in the January 2006 parliamentary elections. The author also addresses post-election changes in Gaza, both politically (especially the rise of open conflict between factions) and socially. She concludes by examining Gaza's grim and uncertain future in the wake of the intense devastation——economic, political, and social——wreaked over the past several years.

scholarly journals Terminal-Selective Functionalization of Alkyl Chains by Regioconvergent Cross-Coupling

2016 ◽  
Vol 55 (47) ◽  
pp. 14793-14797 ◽  
Author(s):  
Stéphanie Dupuy ◽  
Ke-Feng Zhang ◽  
Anne-Sophie Goutierre ◽  
Olivier Baudoin
Keyword(s):  
Cross Coupling ◽  
Alkyl Chains ◽  
Selective Functionalization

scholarly journals Metal-catalyzed cross-coupling chemistry with polyhedral boranes

2019 ◽  
Vol 55 (4) ◽  
pp. 430-442 ◽  
Author(s):  
Rafal M. Dziedzic ◽  
Alexander M. Spokoyny
Keyword(s):  
Cross Coupling ◽  
The Past ◽  
Metal Catalyzed ◽  
Powerful Strategy

Over the past several decades, metal-catalyzed cross-coupling has emerged as a powerful strategy to functionalize polyhedral borane clusters.

scholarly journals Personal View – The Evolution of Neurochemistry

Neuroforum ◽  
2019 ◽  
Vol 25 (4) ◽  
pp. 259-264
Author(s):  
Ferdinand Hucho
Keyword(s):  
Systems Approach ◽  
Life Sciences ◽  
Past Century ◽  
Human Beings ◽  
Personal Account ◽  
Personal View ◽  
The Past ◽  
Time Period

Abstract This esssay is a personal account of the evolution of Neurochemistry in the past century. It describes in parallel the authors way from chemistry to biochemistry and finally to Neurochemistry and the progress of a most exciting chapter of the Life Sciences. It covers the successful time period of reductionist research (by no means comprehensively), which lay the ground for the recent and future systems approach. This development promises answers to fundamental questions of our existence as human beings.

Recent Progress on the Synthesis of CF2H-Containing Derivatives

Synthesis ◽  
2019 ◽  
Vol 51 (24) ◽  
pp. 4549-4567 ◽  
Author(s):  
Noam Levi ◽  
Dafna Amir ◽  
Eytan Gershonov ◽  
Yossi Zafrani
Keyword(s):  
Physicochemical Properties ◽  
Recent Progress ◽  
Cross Coupling ◽  
Short Review ◽  
Synthetic Methods ◽  
The Past ◽  
Palladium Catalyzed ◽  
Group A

Recent years have witnessed a growing interest in the development of novel synthetic methods and new reagents for the synthesis of difluoromethylated compounds. Dozens of studies have been published on this topic each year over the past few years. These studies are focused on direct and indirect difluoromethylation of various organic functionalities via nucleophilic-, electrophilic-, radical-, carbene- or metal-mediated mechanisms. The present short review covers the very recent studies, published between mid-2017 and early 2019, on the synthesis of compounds containing a CF2H group. A brief summary of the physicochemical properties and medicinal applications of difluoromethylated compounds is also included.1 Introduction2 Nucleophilic Difluoromethylation2.1 Metal-Mediated Nucleophilic Difluoromethylation2.2 Non-Metal Difluoromethyl Nucleophiles3 Radical Difluoromethylation3.1 Metal-Induced Radical Difluoromethylation3.2 Non-Metal-Induced Radical Difluoromethylation3.3 Electrochemically Induced Radical Difluoromethylation4 Carbene-Based Difluoromethylation4.1 Metal-Induced Carbene Difluoromethylation4.2 Non-Metal-Induced Difluoromethyl Carbenes5 Cross-Coupling Difluoromethylation5.1 Palladium-Catalyzed Difluoromethylation5.2 Nickel-Catalyzed Difluoromethylation5.3 Copper-Mediated Difluoromethylation5.4 Iron-Catalyzed Difluoromethylation5.5 Gold-Mediated Difluoromethylation6 Electrophilic Difluoromethylation7 Other Examples7.1 A Difluoromethyl-Borane Complex7.2 A Tellurium Difluoromethyl Derivative8 Summary

Nickel-catalyzed allyl–allyl coupling reactions between 1,3-dienes and allylboronates

2020 ◽  
Vol 56 (54) ◽  
pp. 7431-7434 ◽  
Author(s):  
Ding-Wei Ji ◽  
Gu-Cheng He ◽  
Wei-Song Zhang ◽  
Chao-Yang Zhao ◽  
Yan-Cheng Hu ◽  
...  
Keyword(s):  
Cross Coupling ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Nickel Hydride

A nickel-hydride catalysis has been developed to facilitate the allyl–allyl cross-coupling reactions between 1,3-dienes and allyl-B(pin) in excellent regioselectivity.

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