Recent developments in the synthesis and applications of chiral ferrocene ligands and organocatalysts in asymmetric catalysis

2020 ◽  
Vol 18 (46) ◽  
pp. 9329-9370
Author(s):  
Laura Cunningham ◽  
Annette Benson ◽  
Patrick J. Guiry
Keyword(s):  
Asymmetric Catalysis ◽  
Chiral Ligands ◽  
Recent Advances ◽  
Recent Developments

This review highlights recent advances in the synthesis and application of ferrocene-containing chiral ligands and organocatalysts in asymmetric catalysis.

Novel Chiral Ligands for Palladium-catalyzed Asymmetric Allylic Alkylation/ Asymmetric Tsuji-Trost Reaction: A Review

2019 ◽  
Vol 23 (11) ◽  
pp. 1168-1213 ◽  
Author(s):  
Samar Noreen ◽  
Ameer Fawad Zahoor ◽  
Sajjad Ahmad ◽  
Irum Shahzadi ◽  
Ali Irfan ◽  
...  
Keyword(s):  
Asymmetric Catalysis ◽  
Enantioselective Synthesis ◽  
Chiral Ligands ◽  
Allylic Alkylation ◽  
Research Groups ◽  
Asymmetric Allylic Alkylation ◽  
Catalytic Potential ◽  
Long Time ◽  
Palladium Catalyzed ◽  
Alkylation Reactions

Background: Asymmetric catalysis holds a prestigious role in organic syntheses since a long time and chiral inductors such as ligands have been used to achieve the utmost desired results at this pitch. The asymmetric version of Tsuji-Trost allylation has played a crucial role in enantioselective synthesis. Various chiral ligands have been known for Pdcatalyzed Asymmetric Allylic Alkylation (AAA) reactions and exhibited excellent catalytic potential. The use of chiral ligands as asymmetric inductors has widened the scope of Tsuji-Trost allylic alkylation reactions. Conclusion: Therefore, in this review article, a variety of chiral inductors or ligands have been focused for palladium catalyzed asymmetric allylic alkylation (Tsuji-Trost allylation) and in this regard, recently reported literature (2013-2017) has been described. The use of ligands causes the induction of enantiodiscrimination to the allylated products, therefore, the syntheses of various kinds of ligands have been targeted by many research groups to employ in Pd-catalyzed AAA reactions.

New Work on Speech Acts

2018 ◽  
Keyword(s):  
Speech Acts ◽  
Speech Act ◽  
Speech Act Theory ◽  
New Work ◽  
Half Century ◽  
Recent Advances ◽  
Current Thinking ◽  
Semantics And Pragmatics ◽  
Recent Developments ◽  
The Relationship

The essays collected in this book represent recent advances in our understanding of speech acts-actions like asserting, asking, and commanding that speakers perform when producing an utterance. The study of speech acts spans disciplines, and embraces both the theoretical and scientific concerns proper to linguistics and philosophy as well as the normative questions that speech acts raise for our politics, our societies, and our ethical lives generally. It is the goal of this book to reflect the diversity of current thinking on speech acts as well as to bring these conversations together, so that they may better inform one another. Topics explored in this book include the relationship between sentence grammar and speech act potential; the fate of traditional frameworks in speech act theory, such as the content-force distinction and the taxonomy of speech acts; and the ways in which speech act theory can illuminate the dynamics of hostile and harmful speech. The book takes stock of well over a half century of thinking about speech acts, bringing this classicwork in linewith recent developments in semantics and pragmatics, and pointing the way forward to further debate and research.

scholarly journals Recent Advances in Rapid Synthesis of Non-proteinogenic Amino Acids from Proteinogenic Amino Acids Derivatives via Direct Photo-Mediated C–H Functionalization

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5270
Author(s):  
Zhenbo Yuan ◽  
Xuanzhong Liu ◽  
Changmei Liu ◽  
Yan Zhang ◽  
Yijian Rao
Keyword(s):  
Amino Acids ◽  
Direct Synthesis ◽  
Environmentally Friendly ◽  
Powerful Method ◽  
Rapid Synthesis ◽  
Conservation Of Energy ◽  
Mild Conditions ◽  
Recent Advances ◽  
Recent Developments

Non-proteinogenic amino acids have attracted tremendous interest for their essential applications in the realm of biology and chemistry. Recently, rising C–H functionalization has been considered an alternative powerful method for the direct synthesis of non-proteinogenic amino acids. Meanwhile, photochemistry has become popular for its predominant advantages of mild conditions and conservation of energy. Therefore, C–H functionalization and photochemistry have been merged to synthesize diverse non-proteinogenic amino acids in a mild and environmentally friendly way. In this review, the recent developments in the photo-mediated C–H functionalization of proteinogenic amino acids derivatives for the rapid synthesis of versatile non-proteinogenic amino acids are presented. Moreover, postulated mechanisms are also described wherever needed.

scholarly journals Recent developments in voltammetric and amperometric sensors for cysteine detection

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5411-5425
Author(s):  
Somayeh Tajik ◽  
Zahra Dourandish ◽  
Peyman Mohammadzadeh Jahani ◽  
Iran Sheikhshoaie ◽  
Hadi Beitollahi ◽  
...  
Keyword(s):  
Review Article ◽  
Amperometric Sensors ◽  
Recent Advances ◽  
Recent Developments ◽  
Amperometric Sensing

This review article aims to provide an overview of the recent advances in the voltammetric and amperometric sensing of cysteine (Cys).

Recent advances and new concepts for the synthesis of axially stereoenriched biaryls

2015 ◽  
Vol 44 (11) ◽  
pp. 3418-3430 ◽  
Author(s):  
J. Wencel-Delord ◽  
A. Panossian ◽  
F. R. Leroux ◽  
F. Colobert
Keyword(s):  
Chiral Compounds ◽  
The Past ◽  
Recent Advances ◽  
New Concepts ◽  
Axially Chiral ◽  
Recent Developments ◽  
Synthetic Routes

Over the past decade the field of the synthesis of axially chiral compounds has been rapidly expanding. Not only key advances have been achieved concerning the already established strategies but also new synthetic routes have been devised. This review showcases the recent developments in this domain.

Recent advances in metal–nitrogen–carbon catalysts for electrochemical water splitting

2017 ◽  
Vol 1 (11) ◽  
pp. 2155-2173 ◽  
Author(s):  
Kaihua Liu ◽  
Haixia Zhong ◽  
Fanlu Meng ◽  
Xinbo Zhang ◽  
Junmin Yan ◽  
...  
Keyword(s):  
Water Splitting ◽  
Recent Advances ◽  
Recent Developments ◽  
Electrochemical Water Splitting ◽  
Carbon Catalysts

The recent developments of metal–nitrogen–carbon catalysts for electrochemical water splitting have been comprehensively summarized.

Recent advances in the application of noble metal nanoparticles in colorimetric sensors for lead ions

2021 ◽  
Author(s):  
H Singh ◽  
Amy Bamrah ◽  
Sanjeev Kumar ◽  
A Deep ◽  
M Khatri ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Chemical Properties ◽  
Lead Ions ◽  
Noble Metal Nanoparticles ◽  
Physical Chemical ◽  
Recent Advances ◽  
Recent Developments ◽  
Colorimetric Sensors

Recent developments in nanotechnology and engineering have produced a plethora of nanomaterials with amazing physical/chemical properties and enhanced sensing potential for various heavy metals in the environment. Noble metal nanoparticles...

N-Heterocyclic silylene in coinage metal chemistry: an account of recent advances

2021 ◽  
Author(s):  
Moushakhi Ghosh ◽  
Shabana Khan
Keyword(s):  
Exponential Growth ◽  
Coinage Metal ◽  
Feature Article ◽  
Metal Chemistry ◽  
Recent Advances ◽  
Recent Developments

This feature article intends to highlight and comprehensively summarize the recent developments in the field of silylene-coinage metal chemistry. Recent years have witnessed exponential growth in the utilization of N-heterocyclic...

Recent Advances in the Synthesis and Applications of beta-Keto Sulfones: New Prospects for the Synthesis beta-Keto Thiosulfones

2021 ◽  
Author(s):  
Raju Jannapu Reddy ◽  
Haritha Kumari Arram ◽  
J. Kumar Jagadeesh
Keyword(s):  
Recent Advances ◽  
Recent Developments

The review mainly focuses on the recent developments in preparing β-keto sulfones and their enormous synthetic applications. New prospects for the synthesis of β-keto thiosulfones have also been highlighted. Over...

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