Simple preparation methods

Trade names of products used in specimen preparation are mentioned in the text and, unless otherwise stated, these are standard materials available from a variety of suppliers, some of which are noted in Appendix V. Specific microscopes are not mentioned, but some microscope vendors are listed in Appendix VI. 

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For some volatile aliphatic 1,2,3-trienes simple preparative methods have been b4-55... 

Asinger et a], have developed a simple preparative method for variously substituted A3-thiazolines by the action of sulfur and ammonia on ketones. 

The chemistry of elemental sulfur has been reviewed before but since that time considerable progress has been made. New and simple preparative methods for several allotropes have been developed, the molecular composition of liquid sulfur has been elucidated, X-ray structural analyses of several species have been published for the first time and new analytical techniques to detect and determine molecules S in mixtures have been worked out. In addition, several new reactions of sulfur rings have been discovered. These recent developments will be reviewed in the present paper. 

Powdering, or grinding, of samples is a simple preparation method required in a number of spectrometric and spectroscopic techniques, such as x-ray diffraction (XRD), nuclear magnetic resonance (NMR), differential thermal analysis (DTA), thermogravimetric analysis (TG), or ATR-FTIR spectroscopy. Control of the particle size during grinding must be taken into account in attempting to obtain reliable results. 

Toda, F., Takumi, H., and Tanaka, K. (1995) A Simple Preparative Method for Optically Active Glycidic Esters, Tetrahedron Asymm., 6, 1059-1062. 

The synthesis of Al-MCM-41 has been reported by several authors and the distribution between framework and extra-framework aluminum species has been found to depend strongly on the silica and aluminum sources, the nature of templating surfactant and synthesis conditions [Ref 2 and references therein]. In this contribution we investigate a simple preparation method based on hexadecyltrimethylammonium cloride, tetraethyl orthosilicate, aluminum isopropoxide and an ammonia solution. 

A simple preparative method involves oxidation of iodobenzene with CrOj-AcjO-HjSO in acetic acid (79% yield). Other aryliodine(III) diacetates are accessible in the same manner. 

In our previous study, it was revealed that the strained siloxane are easily generated on the mesoporous silica, especially FSM-16, by evacuation at high temperature above 473 K [15,16]. In the present study, we examined the new simple preparation method to obtain the basic mesoporous silica catalyst and evaluated their catalytic activities [17]. 

As part of a major research topic concerning characterization and mode of operation of novel (bi-)metallic catalysts for liquid phase catalysis, we have now developed a fast and simple preparation method for supported bimetallic catalysts, even of less noble metals. This method involves reduction of bimetallic... 

Following a very simple preparative method, tetraphenyldipyrrolo[3,4-Z) 3, 4 -d]pyrrole (132) could be obtained in 87% yield from iV-benzyl-2,3,4,5-tetrabenzoylpyrrolidine by allowing it to react with cyclohexylamine in methanol at room temperature <72JCS(P1)I459). 

The fact that the glycosidic linkage in the 5,6-unsaturated pyranoid system, as in 234, is easy to cleave to the deoxydicarbonyl sugar (235) led to a simple preparative method for the synthesis of 6-deoxyglycos-uloses, for example, 6-deoxy-D-orabmo-hexofuranos-5-ulose (236) by way of 235. Compound 236 is the carbohydrate moiety of the antibiotic hygromycin A. ... 

Bonds to Carbon.—Phosphorus(jn) Compounds. Force constants, f p = 9.100 mdyn A and/ch = 6.250 mdyn A, have been calculated from an anharmonic force field for HCP. A simple preparative method for trimethyl-phosphine involves the reaction between the trichloride and methyl-lithium in ether at —78 °C and gives yields of ca. 60%. 

Silakhori, M. Naghavi, M.S. Metselaar, H.S.C. Mahlia, T.M.I. Mehrali, H. Fauzi, M. Accelerated thermal cycling test of microencapsulated paraffin wax/polyaniline made by simple preparation method for solar thermal energy storage. Materials 6 (2013) 1608-1620. 

A short and simple preparative method to make azulene itself, 1-methylazulene and 6-substituted azulenes starts from arylpropionic... 

Several comprehensive reviews on the chromatography of metal complexes are available, e.g. [11,12], which suggest that the ligand should form neutral complexes with a large number of metals, using relatively simple preparation methods, and that the complexes formed should be... 

Various phosphors have been developed for different application systems, wherein the oxide phosphors are particularly noticed and mosfly widely used because of their excellent properties such as high luminescence efficiency and thermal stability as well as the superiority of simple preparation methods and inexpensive raw materials. In this chapter, oxide phosphors for lighting and display will be introduced, and more attention will be focused on the performance improvement of practical oxide phosphors for three-band fluorescent lamps, plasma displays, and white light-emitting diodes. Due to the space limitation, the aim of this chapter is not to discuss all of the works involved in the progress of oxide phosphors but to introduce the efforts made by our research group in the General Research Institute for Nonferrous Metals, China. 

Shen Y, Bi L, Liu B, Dong S. Simple preparation method of Pd nanoparticles on an Au electrode and its catalysis for dioxygen reduction. New J Chem 2003 27 938-41. 

Reactions.—Electrolytic oxidation of dialkylamines and CS2 in an undivided cell, with solvent extraction of the product, provides a simple preparative method for bis (dialkylthiocarbamoyl) disulphides (thiuram disulphides), and electrolytic... 

For some volatile aliphatic l,Z,3-trienes simple preparative methods have been developed . These involve 1,4-elimination of halogen or halogen and sulfinate with powdered zinc in high-boiling solvents, especially DMSO or HMPT ... 

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