The Recent Progress on Supported and Recyclable Nickel Catalysts towards Organic Transformations: A Review

2021 ◽  
Vol 6 (15) ◽  
pp. 3656-3682
Author(s):  
Avishek Ghatak ◽  
Madhurima Das
Keyword(s):  
Recent Progress ◽  
Nickel Catalysts ◽  
Organic Transformations

scholarly journals Heterocycles as Moderators of Allyl Cation Cycloaddition Reactivity

Synlett ◽  
2017 ◽  
Vol 28 (18) ◽  
pp. 2345-2352 ◽  
Author(s):  
Johan Winne ◽  
Jan Hullaert ◽  
Bram Denoo ◽  
Mien Christiaens ◽  
Brenda Callebaut
Keyword(s):  
Natural Products ◽  
Recent Progress ◽  
Organic Transformations ◽  
Allyl Cation

For the rapid elaboration of polycarbocyclic scaffolds, prevalent in many important families of terpenoid natural products, allyl cations derived from simple heterocyclic alcohols can be used as versatile reaction partners in both (4+3) and (3+2) cycloaddition pathways. Our recent progress in this area is outlined, pointing towards the untapped potential of heterocycles to act as reagents in novel or known but challenging organic transformations.1 Heterocyclic Reagents2 Cycloadditions and Allyl Cations3 Furfuryl Cations in Cycloadditions4 Heterocycle-Substituted Cations in Cycloadditions5 Mechanistic Considerations6 Conclusions and Outlook

Recent Progress in the Preparation of Eco-friendly Lubricant and Fuel Additives through Organic Transformations of Biomaterials

2017 ◽  
Vol 14 (1) ◽  
pp. 44-55 ◽  
Author(s):  
Raj Singh ◽  
Aruna Kukrety ◽  
Ajay Chouhan ◽  
Neeraj Atray ◽  
Siddharth Ray
Keyword(s):  
Recent Progress ◽  
Fuel Additives ◽  
Organic Transformations

Recent advances in sustainable organic transformations using methanol: Expanding the scope of hydrogen borrowing catalysis

2021 ◽  
Author(s):  
Debasis Banerjee ◽  
Lalit Mohan Kabadwal ◽  
Sourajit Bera
Keyword(s):  
Recent Progress ◽  
Alkylating Agent ◽  
Present Review ◽  
Organic Transformations ◽  
Recent Advances ◽  
Metal Catalyzed

Present review focuses on the recent progress achieved from 2017 to March 2021 using methanol as C1-alkylating agent. A series of novel metal-catalyzed hydrogen-borrowing processes have been developed using methanol....

Bare magnetic nanoparticles: sustainable synthesis and applications in catalytic organic transformations

2014 ◽  
Vol 16 (10) ◽  
pp. 4493-4505 ◽  
Author(s):  
Reuben Hudson ◽  
Yuting Feng ◽  
Rajender S. Varma ◽  
Audrey Moores
Keyword(s):  
Magnetic Nanoparticles ◽  
Recent Progress ◽  
Organic Transformations ◽  
Magnetically Recoverable Catalysts ◽  
Recoverable Catalysts

Naked magnetic nanoparticles are successfully used as magnetically recoverable catalysts for organic transformations; this review highlights recent progress in this rapidly growing field.

scholarly journals Acetylene in Organic Synthesis: Recent Progress and New Uses

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2442 ◽  
Author(s):  
Vladimir V. Voronin ◽  
Maria S. Ledovskaya ◽  
Alexander S. Bogachenkov ◽  
Konstantin S. Rodygin ◽  
Valentine P. Ananikov
Keyword(s):  
Recent Progress ◽  
Rapid Development ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Organic Transformations ◽  
Acetylene Molecule ◽  
Cross Coupling Reactions ◽  
Pharmaceutical Substances ◽  
Molecular Complexity ◽  
Different Levels

Recent progress in the leading synthetic applications of acetylene is discussed from the prospect of rapid development and novel opportunities. A diversity of reactions involving the acetylene molecule to carry out vinylation processes, cross-coupling reactions, synthesis of substituted alkynes, preparation of heterocycles and the construction of a number of functionalized molecules with different levels of molecular complexity were recently studied. Of particular importance is the utilization of acetylene in the synthesis of pharmaceutical substances and drugs. The increasing interest in acetylene and its involvement in organic transformations highlights a fascinating renaissance of this simplest alkyne molecule.

Electron-Mirror Microscopic Aspects of Ferroelectric Domains of BaTiO3 And Ca2Sr (C2H5CO2)6

1970 ◽  
Vol 28 ◽  
pp. 478-479
Author(s):  
Teruo Someya ◽  
Jinzo Kobayashi
Keyword(s):  
Surface Layer ◽  
Electric Fields ◽  
Quantitative Study ◽  
Recent Progress ◽  
Ferroelectric Domain ◽  
Resolving Power ◽  
Surface Pattern ◽  
Crystal Surfaces ◽  
One Dimensional ◽  
Ferroelectric Domains

Recent progress in the electron-mirror microscopy (EMM), e.g., an improvement of its resolving power together with an increase of the magnification makes it useful for investigating the ferroelectric domain physics. English has recently observed the domain texture in the surface layer of BaTiO3. The present authors ) have developed a theory by which one can evaluate small one-dimensional electric fields and/or topographic step heights in the crystal surfaces from their EMM pictures. This theory was applied to a quantitative study of the surface pattern of BaTiO3).

The Nature of Oxide Surfaces: Topographic and Electronic Structure

1993 ◽  
Vol 51 ◽  
pp. 966-967
Author(s):  
Dawn A. Bonnell ◽  
Yong Liang
Keyword(s):  
Transition Metal Oxides ◽  
Electronic Structures ◽  
Recent Progress ◽  
Spatial Localization ◽  
Level Of Detail ◽  
Scanning Tunneling ◽  
Oxide Surfaces ◽  
Tunneling Microscopy ◽  
Considerable Effort ◽  
Complete Understanding

Recent progress in the application of scanning tunneling microscopy (STM) and tunneling spectroscopy (STS) to oxide surfaces has allowed issues of image formation mechanism and spatial resolution limitations to be addressed. As the STM analyses of oxide surfaces continues, it is becoming clear that the geometric and electronic structures of these surfaces are intrinsically complex. Since STM requires conductivity, the oxides in question are transition metal oxides that accommodate aliovalent dopants or nonstoichiometry to produce mobile carriers. To date, considerable effort has been directed toward probing the structures and reactivities of ZnO polar and nonpolar surfaces, TiO2 (110) and (001) surfaces and the SrTiO3 (001) surface, with a view towards integrating these results with the vast amount of previous surface analysis (LEED and photoemission) to build a more complete understanding of these surfaces. However, the spatial localization of the STM/STS provides a level of detail that leads to conclusions somewhat different from those made earlier.

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