Recent progress in mild Csp3–H bond dehydrogenative or (mono-) oxidative functionalization

2017 ◽  
Vol 15 (6) ◽  
pp. 1294-1312 ◽  
Author(s):  
Andrea Gini ◽  
Tobias Brandhofer ◽  
Olga García Mancheño
Keyword(s):  
Recent Progress ◽  
Bond Functionalization ◽  
Oxidative Functionalization ◽  
New Approaches ◽  
Recent Advances

This review summarizes recent advances in mild and green dehydrogenative and mono-oxidative Csp3–H bond functionalization reactions, considering both new approaches and the re-elaboration of known methodologies.

Recent progress of MXenes and MXene-based nanomaterials for the electrocatalytic hydrogen evolution reaction

2021 ◽  
Author(s):  
Zhaoming Kang ◽  
Muhammad Arif Khan ◽  
Yanmei Gong ◽  
Rida Javed ◽  
Yuan Xu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Recent Progress ◽  
Recent Advances ◽  
Functional Mechanisms

In this review, recent advances in MXenes and MXene-based nanomaterials applied in HER electrocatalysis are overviewed in terms of their synthesis, characterization, functional mechanisms, and HERperformance/optimization.

Recent Advances in Soil Response Modeling for Well Conductor Fatigue Analysis and Development of New Approaches

2015 ◽  
Author(s):  
Arash Zakeri ◽  
Ed Clukey ◽  
Buba Kebadze ◽  
Philippe Jeanjean ◽  
Dan Walker ◽  
...  
Keyword(s):  
Fatigue Analysis ◽  
Soil Response ◽  
New Approaches ◽  
Recent Advances ◽  
Response Modeling

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 New approaches to organocatalysis based on C–H and C–X bonding for electrophilic substrate activation

2016 ◽  
Vol 12 ◽  
pp. 2834-2848 ◽  
Author(s):  
Pavel Nagorny ◽  
Zhankui Sun
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Recent Progress ◽  
Halogen Bonds ◽  
Hydrogen Bond Donor ◽  
New Approaches ◽  
Substrate Activation ◽  
Non Covalent Interactions ◽  
Covalent Interactions ◽  
Hydrogen Bond Donors

Hydrogen bond donor catalysis represents a rapidly growing subfield of organocatalysis. While traditional hydrogen bond donors containing N–H and O–H moieties have been effectively used for electrophile activation, activation based on other types of non-covalent interactions is less common. This mini review highlights recent progress in developing and exploring new organic catalysts for electrophile activation through the formation of C–H hydrogen bonds and C–X halogen bonds.

Assessing the Benefit of Innovations in ATC

1998 ◽  
Vol 51 (3) ◽  
pp. 312-320
Author(s):  
S. Ratcliffe
Keyword(s):  
Free Flight ◽  
New Approaches ◽  
Quantitative Studies ◽  
Traffic Capacity ◽  
Recent Advances ◽  
The Subject

Recent advances in technology have encouraged proposals for new approaches to ATC in Europe and elsewhere. Two such proposals, both rather loosely framed, are for ‘free flight’ or for ‘seamless contracts’; otherwise ‘tubes of flight’. These concepts, and variations on them, aim to increase the traffic capacity of the airspace. They have been the subject of numerous published papers. Given the declared objects of these systems, it is surprising that, nearly without exception, these papers discuss the proposals only in qualitative terms. The present paper discusses idealised versions of these systems on the basis of quantitative studies. It is concluded that the ‘seamless contract’ is very probably unworkable in Europe. ‘free flight’ is workable in principle, but there is a need for investigation of possible mechanisms by which last-minute problems may be resolved.

Recent advances in graphene and its metal-oxide hybrid nanostructures for lithium-ion batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (11) ◽  
pp. 4820-4868 ◽  
Author(s):  
Manish Srivastava ◽  
Jay Singh ◽  
Tapas Kuila ◽  
Rama K. Layek ◽  
Nam Hoon Kim ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Lithium Ion Batteries ◽  
Recent Progress ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Hybrid Nanostructures ◽  
Recent Advances

This review highlights the recent progress in graphene and graphene-based metal-oxide hybrids for use as electrode materials in lithium-ion batteries.

Recent Progress in σ-Bond Cross-Exchange Reactions to Access Diverse Silacycles

Synlett ◽  
2018 ◽  
Vol 29 (20) ◽  
pp. 2595-2600 ◽  
Author(s):  
Dongbing Zhao ◽  
Wen-Tao Zhao ◽  
Fang Gao
Keyword(s):  
Exchange Reaction ◽  
Recent Progress ◽  
Atom Economy ◽  
Exchange Reactions ◽  
Rapid Access ◽  
Recent Advances

The σ-bond cross-exchange reaction, which involves cleavage and subsequent exchange between different nonpolar σ-bonds, constitutes an attractive protocol for rapid access to organic skeletons with 100% atom economy. Herein, we give a brief summary of recent achievements in this approach for the synthesis of diverse silacycles, highlighting our recent advances in the first intermolecular σ-bond exchange between C–C bonds of cyclopropenones and C–Si bonds of (benzo)silacyclobutanes.1 Introduction2 σ-Bond Exchange-Reaction of Benzocyclobutanones to Silacycles3 σ-Bond Exchange-Reaction of Ethyl Cyclopropylideneacetates to Silacycles4 σ-Bond Exchange-Reaction of Cyclopropenones to Silacycles5 Conclusion

Recent progress in high-performance photo-detectors enabled by the pulsed laser deposition technology

2020 ◽  
Vol 8 (15) ◽  
pp. 4988-5014 ◽  
Author(s):  
Bing Wang ◽  
Zhi Bin Zhang ◽  
Shi Peng Zhong ◽  
Zhao Qiang Zheng ◽  
Ping Xu ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Future Development ◽  
High Performance ◽  
Recent Progress ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Development Trends ◽  
Recent Advances ◽  
Photo Detectors ◽  
Deposition Technology

This review introduces recent advances in the materials, fabrication and application of pulsed-laser deposition for high performance photo-detectors from an overall perspective. Challenges and future development trends are also discussed.

Recent Advances in Foraging Theory for Herbivores

2002 ◽  
Vol 2002 ◽  
pp. 235-236
Author(s):  
N.T. Hobbs
Keyword(s):  
Foraging Theory ◽  
Scientific Understanding ◽  
Mammalian Herbivores ◽  
New Approaches ◽  
Recent Advances

My remarks explore the role of theory in making progress in science generally and particularly in ecology. I discuss what theory is (and isn’t). I argue that theory is a fundamentally important part of doing science efficiently, and I discuss some exciting new approaches for combining theory, data, and statistics to enhance scientific understanding. I illustrate these approaches using examples from work on foraging by mammalian herbivores.

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