Results 231 to 240 of about 484,472 (264)

Solvent-free Acetylation Procedure

Organic Preparations and Procedures International, 2021
The acetylation of alcohols, phenols or amines is an important and routinely utilized process in organic chemistry.
Sujata V. Bhat, Manisha O. Gupta, Jyoti K. Yadav, Kedar R. Vaze   +3 more
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Solvent-Free Routes to Clean Technology

Chemistry - A European Journal, 2001
A major aim for the chemical technology of the future is the avoidance of noxious and environmentally unacceptable organic solvents. In this concept article we discuss more environmentally friendly and highly selective alternatives which we have evolved for carrying out a number of important chemical conversions.
Thomas, J. M., Raja, R., Sankar, G., Johnson, B.F.G., Lewis, D.W.   +4 more
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Solvent‐Free Synthesis of Microparticles on Superamphiphobic Surfaces

Angewandte Chemie International Edition, 2013
Polymeric and composite microspheres can be synthesized without solvents or process liquids by using superamphiphobic surfaces. In this method, the repellency of superamphiphobic layers to monomers and polymer melts and the extremely low adhesion to particles are taken advantage of.
Deng, X., Paven, M., Papadopoulos, P., Ye, M., Wu, S., Schuster, T., Klapper, M., Vollmer, D., Butt, H.   +8 more
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Solvent‐Free Protein Liquids and Liquid Crystals

Angewandte Chemie International Edition, 2009
Nanostructures such as functionalized nanoparticles and superlattices have wide-ranging applications in diverse areas. Although these materials are invariably used in the form of aqueous/organic dispersions, ultrathin films, or bulk powders, Giannellis and co-workers have recently pioneered an approach to preparing functionalized inorganic ...
Perriman, AW, Coelfen, H, Hughes, RW, Barrie, CL, Mann, S   +4 more
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Solvent-free

Acta crystallographica. Section C, Crystal structure communications
The title compound, [Au(2)Cl(2)Fe(C(17)H(14)P)(2)], (I), contains the expected linear gold centres. The ferrocene moiety acts as a P, P'-bridging ligand, wherein the Fe atom lies on an inversion centre. The P-Au-Cl angle is 177.56 (8) degrees and bond distances Au-P and Au-Cl are 2.2261 (18) and 2.2781 (18) A, respectively.
, Crespo, , Gimeno, , Jones, , Laguna
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Solvent-free Reactions

1999
For reasons of economy and pollution, solvent-free methods are of great interest in order to modernize classical procedures making them more clean, safe and easy to perform. Reactions on solid mineral supports, reactions without any solvent/support or catalyst, and solid-liquid phase transfer catalysis can be thus employed with noticeable increases in ...
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Solvent-free synthesis of phthalocyanines

Journal of Porphyrins and Phthalocyanines, 2003
Clean and efficient microwave assissted solid phase cyclocondensation of various substituted phthalic anhydrides, phthalic acids, phthalimide and phthalonitrile with urea in the presence of basic alumina forms free-base phthalocyanines in 15-79% yields with and without ammonium molybdate as a catalyst.
Shive M. S. Chauhan, Kandadai A. Srinivas, Pravin K. Srivastava, Bishawabhusan Sahoo   +3 more
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Solvent-Free Organic Synthesis

Chemical Reviews, 2000
K, Tanaka, F, Toda
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Solvent‐Free Organic Syntheses

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Solvent-Free Synthesis of Chalcones

Journal of Chemical Education, 2004
The solvent-free synthesis of 20 chalcones was carried out by grinding the benzaldehyde (unsubstituted, 4-methyl, 4-methoxy, 3-chloro, or 4-chloro) and the acetophenone (unsubstituted, 4-methyl, 4-bromo, or 4-methoxy) in the presence of solid sodium hydroxide with a mortar and pestle.
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