Solvent-Drop Grinding Method: Efficient Synthesis,

2021-5-4  Solvent-Drop Grinding Method: Efficient Synthesis, DPPH Radical Scavenging and Anti-diabetic Activities of Chalcones, bis-chalcones, Azolines, and bis-azolines

Two solvent grinding sonication method for the

2015-1-27  Two-dimensional tungsten disulphide flakes are developed via a two solvent grinding assisted liquid phase exfoliation method. Our investigations show the distinct

A grinding-induced catalyst- and solvent-free

Abstract. A grinding-induced catalyst and solvent -free domino multicomponent reaction for the synthesis of 1,4-dihydropyridines has been developed using aldehydes, amines, DEAD ( diethyl acetylenedicarboxylate ), and malononitrile/ ethyl cyanoacetate. The

Grinding as Solvent-Free Green Chemistry Approach for

2018-10-16  pharmaceutics Review Grinding as Solvent-Free Green Chemistry Approach for Cyclodextrin Inclusion Complex Preparation in the Solid State Mario Jug 1 and Paola Angela Mura 2,* 1 Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovaciˇ ca´ 1, 10000 Zagreb, Croatia; [email protected]

Selective polymorph transformation via solvent

2004-11-9  Implementing the technique of solvent-drop grinding for 60 min with a mechanical mill 20 allowed for several AA polymorph interconversions that could not be achieved by neat grinding . Form I (commercially obtained), which converted partly to III when ground without solvent,was found to be stable with respect to grinding when ground with several drops of acetonitrile .

A novel solvent-free strategy for the synthesis of

2018-6-20  Herein, we demonstrate a fast and simple solvent-free mechanical grinding method for eco-friendly synthesis of BiOX for the first time. By mixing and grinding bismuth nitrate pentahydrate with potassium halides, BiOCl, BiOBr, and BiOI hierarchical flower-like nanostructures can be successfully prepared within 5 min.

Grinding-induced rapid, convenient and solvent free

2013-5-25  Grinding-induced rapid, convenient and solvent free approach for the one pot synthesis of α-aminophosphonates using aluminium pillared interlayered clay catalyst. Author links open overlay panel Bashir Ahmad Dar a Arup Chakraborty a Parduman R. Sharma a Varsha Shrivastava a Amrita Bhowmik a Dushyant Vyas a Prince Bhatti a Meena Sharma b Baldev

Solvent-free synthesis of azulene derivatives via

2013-2-13  It is postulated that this solvent-free reaction based on the grinding of several solids together involves the formation of a liquid phase prior to reaction, that is, formation of a eutectic melt of uniform distribution in which the reacting components, being in close proximity, are poised to react.

Two dimensional α-MoO3 nanoflakes obtained

2014-3-1  A liquid-based organic solvent-assisted grinding and sonication method was adopted for the formation of two dimensional (2D) moderately hydrated α-MoO 3 nanoflake suspensions, with a flake thickness in the order of ∼1.4 nm. This thickness is equal to the largest unit cell parameter of α-MoO 3. The implemented method had the advantage of simplicity and resulted in a high yield of nanoflakes

TECHNICAL SOLUTIONS FOR CUTTING & GRINDING

during grinding WORKPIECE TEMPERATURE Red hot grinding Above 700°C Hot grinding 500-700°C Warm grinding 300-500°C Cold grinding Up to 300°C 300ºC 500ºC 700ºC ºC INTRODUCTION Before further processing semi-finished steel products, the workpiece should be free from scale and flaws.

Solvent-Drop Grinding Method: Efficient Synthesis,

Highly efficient one-pot solvent-free grinding method was reported for synthesis of chalcones 3a-j, 5a,b, 7 and bis-chalcones 9, 11. Cyclodehydration of bis-chalcones 9, 11 and chalcones 3 with hydrazine derivatives under solvent- free grinding method afforded bis-pyrazolines 12a,b, 13a,b and pyrazoline derivatives 14a-g, respectively.

Two solvent grinding sonication method for the

2015-1-27  Two-dimensional tungsten disulphide flakes are developed via a two solvent grinding assisted liquid phase exfoliation method. Our investigations show the distinct advantages of this approach that include reduced residues of the solvent used, high

Grinding as Solvent-Free Green Chemistry Approach for

2018-10-16  pharmaceutics Review Grinding as Solvent-Free Green Chemistry Approach for Cyclodextrin Inclusion Complex Preparation in the Solid State Mario Jug 1 and Paola Angela Mura 2,* 1 Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovaciˇ ca´ 1, 10000 Zagreb, Croatia; [email protected]

A grinding-induced catalyst- and solvent-free

A grinding-induced catalyst and solvent-free domino multicomponent reaction for the synthesis of 1,4-dihydropyridines has been developed using aldehydes, amines, DEAD (diethyl acetylenedicarboxylate), and malononitrile/ ethyl cyanoacetate.The

A novel solvent-free strategy for the synthesis of

2018-6-20  Herein, we demonstrate a fast and simple solvent-free mechanical grinding method for eco-friendly synthesis of BiOX for the first time. By mixing and grinding bismuth nitrate pentahydrate with potassium halides, BiOCl, BiOBr, and BiOI

Exploring the novel green eutectic solvent for the

Thus, the green eutectic solvent-based grinding technology is a selective single step method for the continuous manufacturing of the cocrystal that can serve as an alternative to traditional methods of cocrystal synthesis. In the present study, the suitability of a green eutectic solvent, a mixture of menthol and camphor for cocrystal synthesis

TECHNICAL SOLUTIONS FOR CUTTING & GRINDING

Red hot grinding Above 700°C Hot grinding 500-700°C Warm grinding 300-500°C Cold grinding Up to 300°C 300ºC 500ºC 700ºC ºC INTRODUCTION Before further processing semi-finished steel products, the workpiece should be free from scale and flaws. High-pressure grinding is the optimal process for removing scale, cracks and other surface defects.

Solvent-Free Synthesis of Nanoparticles

2018-1-1  Abstract. This chapter focuses on the synthesis of nanoparticles applying mechanochemical and thermal methods through solvent-free approach. For mechanochemistry, substantial attention is given to ball milling and mortar-and-pestle grinding. The discussion on thermolysis/thermal decomposition covers (1) thermal treatment of precursor salts, (2

Synthesis and characterization of cross-linked

2012-11-1  By grinding cardanol and anhydrous FeCl 3 powder using a glass pestle in a mortar at ambient and solvent-free condition, a novel cross-linked polymer from cardanol, a renewable resource, was synthesized in high yield up to 80% in 5 min. The products were characterized through UV–vis, FT-IR, and 1 H NMR; and the solvent-free grinding polymerization was consisted of Friedel–Crafts

Mechanochemical reaction pathways in solvent-free

2018-9-12  Solvent-free methods for the synthesis of ZSM-5 have been previously reported in the literature. These methods typically involve grinding the starting materials together prior to the hydrothermal reaction step. However, very little is known about the

Solvent-Drop Grinding Method: Efficient Synthesis,

Highly efficient one-pot solvent-free grinding method was reported for synthesis of chalcones 3a-j, 5a,b, 7 and bis-chalcones 9, 11. Cyclodehydration of bis-chalcones 9, 11 and chalcones 3 with hydrazine derivatives under solvent- free grinding method afforded bis-pyrazolines 12a,b, 13a,b and pyrazoline derivatives 14a-g, respectively.

Grinding as Solvent-Free Green Chemistry Approach for

2018-10-16  pharmaceutics Review Grinding as Solvent-Free Green Chemistry Approach for Cyclodextrin Inclusion Complex Preparation in the Solid State Mario Jug 1 and Paola Angela Mura 2,* 1 Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovaciˇ ca´ 1, 10000 Zagreb, Croatia; [email protected]

Grinding as Solvent-Free Green Chemistry

2018-10-16  Grinding as Solvent-Free Green Chemistry Approach for Cyclodextrin Inclusion Complex Preparation in the Solid State. Jug M 1, Mura PA 2. Author information. Affiliations. 1 author. 1. Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10000 Zagreb, Croatia.

KLi(HC3N3O3)·2H2O: Solvent-drop Grinding

2021-3-12  A novel mixed alkali hydro-isocyanurate, KLi(HC3N3O3)·2H2O was first prepared in AOH-BOH-H3C3N3O3 (A/B = Li/Na/K/Rb/Cs) system via a solvent-drop grinding method. KLi(HC3N3O3)·2H2O shows a large second harmonic generation response (5.3 × KH2PO4) with an ultraviolet cutoff edge of 237 nm. More importantly, the bulk single crystal can be readily grown

Exploring the novel green eutectic solvent for the

Thus, the green eutectic solvent-based grinding technology is a selective single step method for the continuous manufacturing of the cocrystal that can serve as an alternative to traditional methods of cocrystal synthesis. In the present study, the suitability of a green eutectic solvent, a mixture of menthol and camphor for cocrystal synthesis

TECHNICAL SOLUTIONS FOR CUTTING & GRINDING

Red hot grinding Above 700°C Hot grinding 500-700°C Warm grinding 300-500°C Cold grinding Up to 300°C 300ºC 500ºC 700ºC ºC INTRODUCTION Before further processing semi-finished steel products, the workpiece should be free from scale and flaws. High-pressure grinding is the optimal process for removing scale, cracks and other surface defects.

Solvent-Free Synthesis of Nanoparticles

2018-1-1  Abstract. This chapter focuses on the synthesis of nanoparticles applying mechanochemical and thermal methods through solvent-free approach. For mechanochemistry, substantial attention is given to ball milling and mortar-and-pestle grinding. The discussion on thermolysis/thermal decomposition covers (1) thermal treatment of precursor salts, (2

A novel solvent-free strategy for the synthesis of bismuth

2018-6-20  Herein, we demonstrate a fast and simple solvent-free mechanical grinding method for eco-friendly synthesis of BiOX for the first time. By mixing and grinding bismuth nitrate pentahydrate with potassium halides, BiOCl, BiOBr, and BiOI hierarchical flower-like nanostructures can be successfully prepared within 5 min.

Solvent-less reactions: Green and sustainable

2020-1-1  The solvent-less or solvent-free chemical reaction is carried out either using the reactant materials or incorporating them into clays, zeolites, silica, alumina, or other matrices. Green and sustainable approaches are followed to utilize external heating source such as UV-visible, MW, ultrasound, IR irradiation and grinding, milling technique

Mechanochemical reaction pathways in solvent-free

2018-9-12  Solvent-free methods for the synthesis of ZSM-5 have been previously reported in the literature. These methods typically involve grinding the starting materials together prior to the hydrothermal reaction step. However, very little is known about the