scholarly journals Recent developments in photoredox-catalyzed remote ortho and para C–H bond functionalizations

2020 ◽  
Vol 16 ◽  
pp. 248-280 ◽  
Author(s):  
Rafia Siddiqui ◽  
Rashid Ali
Keyword(s):  
Organic Chemistry ◽  
Total Synthesis ◽  
Research Area ◽  
Photoredox Catalysis ◽  
Organic Transformations ◽  
Research Papers ◽  
Bond Functionalization ◽  
Synthetic Organic Chemistry ◽  
Recent Developments ◽  
The Impact

In recent years, the research area of direct C–H bond functionalizations was growing exponentially not only due to the ubiquity of inert C–H bonds in diverse organic compounds, including bioactive natural and nonnatural products, but also due to its impact on the discovery of pharmaceutical candidates and the total synthesis of intricate natural products. On the other hand, more recently, the field of photoredox catalysis has become an indispensable and unparalleled research topic in modern synthetic organic chemistry for the constructions of challenging bonds, having the foremost scope in academia, pharmacy, and industry. Therefore, the development of green, simpler, and effective methodologies to accomplish direct C–H bond functionalization is well overdue and highly desirable to the scientific community. In this review, we mainly highlight the impact on, and the utility of, photoredox catalysts in inert ortho and para C–H bond functionalizations. Although a surge of research papers, including reviews, demonstrating C–H functionalizations have been published in this vital area of research, to our best knowledge, this is the first review that focuses on ortho and para C–H functionalizations by photoredox catalysis to provide atom- and step-economic organic transformations. We are certain that this review will act as a promoter to highlight the application of photoredox catalysts for the functionalization of inert bonds in the domain of synthetic organic chemistry.

Photophysical Properties and Redox Potentials of Photosensitizers for Organic Photoredox Transformations

Synlett ◽  
2021 ◽  
Author(s):  
Thomas S. Teets ◽  
Yanyu Wu ◽  
Dooyoung Kim
Keyword(s):  
Organic Chemistry ◽  
Excited State ◽  
Ground State ◽  
Rational Design ◽  
Photocatalytic Performance ◽  
Photophysical Properties ◽  
Redox Potentials ◽  
Photoredox Catalysis ◽  
Organic Transformations ◽  
Synthetic Organic Chemistry

AbstractPhotoredox catalysis has proven to be a powerful tool in synthetic organic chemistry. The rational design of photosensitizers with improved photocatalytic performance constitutes a major advancement in photoredox organic transformations. This review summarizes the fundamental ground-state and excited-state photophysical and electrochemical attributes of molecular photosensitizers, which are important determinants of their photocatalytic reactivity.

Recent Developments in the Asymmetric Detrifluoroacetylative Reactions of in situ Generated Mono-Fluorinated Enolates

2020 ◽  
Vol 24 (18) ◽  
pp. 2181-2191
Author(s):  
Li Wang ◽  
Ziyi Li ◽  
Jiang Liu ◽  
Jianlin Han ◽  
Hiroki Moriwaki ◽  
...  
Keyword(s):  
Organic Chemistry ◽  
Bond Cleavage ◽  
Synthetic Methodology ◽  
Research Topics ◽  
Synthetic Organic Chemistry ◽  
Nucleophilic Reactions ◽  
F Center ◽  
Recent Developments

The development of an efficient and mild synthetic methodology for the construction of bioactive fluorine-containing molecules represents one of the hot research topics in general synthetic organic chemistry. In this review, some recent progresses achieved in the development of detrifluoroacetylatively generated mono-fluorinated enolates via CC bond cleavage and their asymmetric nucleophilic reactions for assembly of chiral quaternary C-F center containing compounds.

Recent Advances in the Incorporation of CO2 for C-H and C-C bond Functionalization

2021 ◽  
Author(s):  
Sandeep Pimparkar ◽  
Aishwarya K. Dalvi ◽  
Adithyaraj Koodan ◽  
Siddhartha Maiti ◽  
Shaeel Al-Thabaiti ◽  
...  
Keyword(s):  
Organic Chemistry ◽  
Carbon Dioxide ◽  
Thermodynamic Stability ◽  
Cost Effective ◽  
Bond Functionalization ◽  
Synthetic Organic Chemistry ◽  
Recent Advances ◽  
Carbon Dioxide Co2

Carbon dioxide (CO2) has emerged as one of the exciting cost-effective, abundant, and ready-to-use C1 sources in synthetic organic chemistry. However, the thermodynamic stability, as well as the kinetic inertness,...

scholarly journals Sensory Attenuation in the Auditory Modality as a Window Into Predictive Processing

2021 ◽  
Vol 15 ◽  
Author(s):  
Fabian Kiepe ◽  
Nils Kraus ◽  
Guido Hesselmann
Keyword(s):  
Predictive Coding ◽  
Research Area ◽  
Predictive Processing ◽  
Auditory Modality ◽  
Auditory Input ◽  
Current State ◽  
Recent Developments ◽  
Sensory Attenuation ◽  
The Impact ◽  
Predictive Mechanisms

Self-generated auditory input is perceived less loudly than the same sounds generated externally. The existence of this phenomenon, called Sensory Attenuation (SA), has been studied for decades and is often explained by motor-based forward models. Recent developments in the research of SA, however, challenge these models. We review the current state of knowledge regarding theoretical implications about the significance of Sensory Attenuation and its role in human behavior and functioning. Focusing on behavioral and electrophysiological results in the auditory domain, we provide an overview of the characteristics and limitations of existing SA paradigms and highlight the problem of isolating SA from other predictive mechanisms. Finally, we explore different hypotheses attempting to explain heterogeneous empirical findings, and the impact of the Predictive Coding Framework in this research area.

Organic Synthesis

2017 ◽  
Author(s):  
Douglass F. Taber ◽  
Tristan Lambert
Keyword(s):  
Organic Synthesis ◽  
State Of The Art ◽  
Research Area ◽  
Organic Transformations ◽  
The Past ◽  
Catalytic Asymmetric Synthesis ◽  
New Methods ◽  
Recent Developments ◽  
Enantioselective Epoxidation ◽  
To Come

Organic synthesis is a vibrant and rapidly evolving field; chemists can now cyclize alkenes directly onto enones. Like the first five books in this series, Organic Synthesis: State of the Art 2013-2015 will lead readers quickly to the most important recent developments in a research area. This series offers chemists a way to stay abreast of what's new and exciting in organic synthesis. The cumulative reaction/transformation index of 2013-2015 outlines all significant new organic transformations over the past twelve years. Future volumes will continue to come out every two years. The 2013-2015 volume features the best new methods in subspecialties such as C-O, C-N and C-C ring construction, catalytic asymmetric synthesis, selective C-H functionalization, and enantioselective epoxidation. This text consolidates two years of Douglass Taber's popular weekly online column, "Organic Chemistry Highlights" as featured on the organic-chemistry.org website and also features cumulative indices of all six volumes in this series, going back twelve years.

Functionalised Polymers: Recent Developments and New Applications in Synthetic Organic Chemistry

Synthesis ◽  
1997 ◽  
Vol 1997 (11) ◽  
pp. 1217-1239 ◽  
Author(s):  
Stephen J. Shuttleworth ◽  
Allin ◽  
Pradeep K. Sharma
Keyword(s):  
Organic Chemistry ◽  
Synthetic Organic Chemistry ◽  
Recent Developments ◽  
New Applications

scholarly journals IL PROFUMO DI PULITO

2012 ◽  
Author(s):  
Claudio Fuganti ◽  
Maria Elisabetta Brenna
Keyword(s):  
Organic Chemistry ◽  
Total Synthesis ◽  
Aromatic Compounds ◽  
Natural Sources ◽  
Synthetic Organic Chemistry ◽  
Odorous Substances

Modern perfumery was born nearly a century ago, when synthetic organic chemistry made available a great variety of products, besides those traditionally obtained by extraction from nature: pure or enriched compounds isolated from natural sources, semi-synthetic products prepared from natural starting materials, aromatic compounds obtained by total synthesis. The most relevant results achieved in the last decade are herein presented for several types of odorous substances.

Recent developments in the synthesis and utilization of chiral β-aminophosphine derivatives as catalysts or ligands

2016 ◽  
Vol 45 (6) ◽  
pp. 1657-1677 ◽  
Author(s):  
Wenbo Li ◽  
Junliang Zhang
Keyword(s):  
Research Area ◽  
Organic Transformations ◽  
Wide Range ◽  
Recent Developments

In the last few years, the research area of chiral β-aminophosphines capable of promoting a wide range of diverse organic transformations has attracted more attention.

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