scholarly journals Two-step solid-state synthesis of PEPPSI-type compounds

2015 ◽  
Vol 51 (47) ◽  
pp. 9632-9635 ◽  
Author(s):  
Christopher J. Adams ◽  
Matteo Lusi ◽  
Emily M. Mutambi ◽  
A. Guy Orpen
Keyword(s):  
Solid State ◽  
Metal Complexes ◽  
Scale Up ◽  
Organometallic Compounds ◽  
Solvent Free ◽  
Solid State Synthesis ◽  
Important Class ◽  
Synthetic Route ◽  
Excellent Yield ◽  
Solvent Free Synthesis

The two-step mechanochemical preparation of an important class of organometallic compounds is reported. The carbene–metal complexes are all rapidly formed in excellent yield. The solvent-free synthesis is proved to be a viable synthetic route to useful NHC-containing compounds amenable to scale-up and mechanization.

Room Temperature Solvent-Free Synthesis of Monodisperse Magnetite Nanocrystals

2006 ◽  
Vol 6 (3) ◽  
pp. 852-856 ◽  
Author(s):  
X. R. Ye ◽  
C. Daraio ◽  
C. Wang ◽  
J. B. Talbot ◽  
S. Jin
Keyword(s):  
Oleic Acid ◽  
Solid State ◽  
Large Scale ◽  
Room Temperature ◽  
Solvent Free ◽  
Two Dimensional ◽  
New Process ◽  
High Boiling Point ◽  
Magnetite Nanocrystals ◽  
Solvent Free Synthesis

We have successfully demonstrated a facile, solvent-free synthesis of highly crystalline and monodisperse Fe3O4 nanocrystallites at ambient temperature avoiding any heating. Solid state reaction of inorganic Fe(II) and Fe(III) salts with NaOH was found to produce highly crystalline Fe3O4 nanoparticles. The reaction, if carried out in the presence of surfactant such as oleic acid–oleylamine adduct, generated monodisperse Fe3O4 nanocrystals extractable directly from the reaction mixture. The extracted nanoparticles were capable of forming self-assembled, two-dimensional and uniform periodic array. The new process utilizes inexpensive and nontoxic starting materials, and does not require a use of high boiling point and toxic solvents, thus is amenable to an environmentally desirable, large-scale synthesis of nanocrystals.

Highly Chemoselective Solvent-Free Synthesis of 1,3,5-Triaryl-1,5-diketones: Crystallographic Investigation and Intramolecular Weak Bifurcated H Bonds Involving Aliphatic C–H Group

Synlett ◽  
2019 ◽  
Vol 30 (19) ◽  
pp. 2143-2147
Author(s):  
Zhongyou Yin ◽  
Changkun Xiong ◽  
Jianxin Guo ◽  
Xiaoyun Hu ◽  
Zixing Shan ◽  
...  
Keyword(s):  
Solid State ◽  
Decisive Role ◽  
Solvent Free ◽  
Dihedral Angles ◽  
Crystallographic Investigation ◽  
Structural Arrangement ◽  
Bond Lengths ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis

Several 1,3,5-triaryl-1,5-diketones have been chemoselectively synthesized under solvent-free conditions. It was found that intramolecular weak bifurcated H-bonds interaction of aliphatic C–H group plays a decisive role in the structural arrangement of 3-(2,6-dichlorophenyl)-1,5-diphenylpentane-1,5-dione in a solid state resulting in significant impact on the corresponding bond lengths and dihedral angles.

Solvent free solid-state synthesis of Pr6O11/g-C3N4 visible light active photocatalyst for degradation of AV7 dye

2018 ◽  
Vol 107 ◽  
pp. 154-163 ◽  
Author(s):  
Ashok G. Shende ◽  
Sachin G. Ghugal ◽  
Devthade Vidyasagar ◽  
Sanjay B. Kokane ◽  
Jagannath ◽  
...  
Keyword(s):  
Solid State ◽  
Visible Light ◽  
Solvent Free ◽  
Solid State Synthesis ◽  
Visible Light Active

scholarly journals Mechanochemistry for facilitated access to N,N-diaryl NHC metal complexes

2017 ◽  
Vol 41 (3) ◽  
pp. 1057-1063 ◽  
Author(s):  
Audrey Beillard ◽  
Xavier Bantreil ◽  
Thomas-Xavier Métro ◽  
Jean Martinez ◽  
Frédéric Lamaty
Keyword(s):  
Metal Complexes ◽  
Ball Mill ◽  
Palladium Complexes ◽  
Solvent Free ◽  
Solvent Free Synthesis

A solvent-free synthesis of NHC–silver, gold, copper and palladium complexes in a ball-mill was achieved.

scholarly journals Milling Activation for the Solvent-Free Synthesis of Zeolites. A Practical Guide

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 246
Author(s):  
Agnieszka Kornas ◽  
Joanna E. Olszówka ◽  
Petr Klein ◽  
Veronika Pashkova
Keyword(s):  
Heterogeneous Catalysts ◽  
Scale Up ◽  
Comprehensive Analysis ◽  
Solvent Free ◽  
Ecological Sustainability ◽  
Manual Treatment ◽  
Activation Mechanisms ◽  
Space Capacity ◽  
Solvent Free Synthesis ◽  
Zeolite Production

The paramount challenge of current chemical technology, including catalysis, is meeting the ecological sustainability requirements. The feasible production of zeolites is crucial because they constitute the principal group of heterogeneous catalysts. However, current zeolite manufacturing via hydrothermal synthesis is connected with considerable consumption of water resources, generation of wastewater, and significant equipment costs. Solvent-free strategies have attracted great attention as high-yielding methods for sustainable synthesis, particularly beneficial in terms of water consumption minimization and an outstanding increase in production due to the efficient use of synthesis space capacity. So far, the solvent-free preparation of numerous zeolite materials has been performed with the preceding grinding of reagents in a mortar. The proposed article describes recent advances in the application of automatized milling instead of manual work. Pretreatment automatization makes the entire process well-controlled, less sensitive to human factors, and is significantly more relevant to industrial scale-up. Moreover, the automatized milling activation unlocks opportunities for solvent-free synthesis from a broader range of common reagents, where the manual treatment is not efficient. Possibilities and limitations of the milling methods are discussed on the basis of a comprehensive analysis of parameter optimization, activation mechanisms, and applicability of common reagents used for zeolite production.

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