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

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 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 Solid Propellant Formulations: A Review of Recent Progress and Utilized Components

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6657
Author(s):  
Kinga Lysien ◽  
Agnieszka Stolarczyk ◽  
Tomasz Jarosz
Keyword(s):  
Solid Propellant ◽  
Recent Progress ◽  
State Of The Art ◽  
The State ◽  
Solid Propellants ◽  
Fuel Additives ◽  
Oxidizing Agents

The latest developments in solid propellants and their components are summarized. Particular attention is given to emerging energetic binders and novel, ‘green’ oxidizing agents and their use in propellant formulations. A brief overview of the latest reports on fuel additives is included. Finally, a summary of the state of the art and challenges in its development are speculated on.

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).

Application of Electron Optics to Characterization of Particulate Pollutants

1972 ◽  
Vol 30 ◽  
pp. 364-365
Author(s):  
J. B. Moran ◽  
J. L. Miller
Keyword(s):  
Air Quality ◽  
Quality Standards ◽  
Ambient Air ◽  
Hazardous Substances ◽  
Fuel Additives ◽  
Ambient Air Quality ◽  
Air Quality Standards ◽  
Emission Standards ◽  
Stationary Sources ◽  
Ambient Air Quality Standards

The Clean Air Act Amendments of 1970 provide the basis for a dramatic change in Federal air quality programs. The Act establishes new standards for motor vehicles and requires EPA to establish national ambient air quality standards, standards of performance for new stationary sources of pollution, and standards for stationary sources emitting hazardous substances. Further, it establishes procedures which allow states to set emission standards for existing sources in order to achieve national ambient air quality standards. The Act also permits the Administrator of EPA to register fuels and fuel additives and to regulate the use of motor vehicle fuels or fuel additives which pose a hazard to public health or welfare.National air quality standards for particulate matter have been established. Asbestos, mercury, and beryllium have been designated as hazardous air pollutants for which Federal emission standards have been proposed.

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