Abstract: New processes for producing decitabine are provided.

Abstract: A process of a preparing transparent conductive carbon nanotube (CNT) film, the carbon nanotube film prepared by the process, and carbon nanotube elements including the carbon nanotube film are provided. The carbon nanotube film has a higher transparency and much lower sheet resistance compared with the carbon nanotube film obtained by a conventional filtration process.

Abstract: A method of preparing carbon nanotubes (CNT), a method of purifying carbon nanotubes, carbon nanotubes, and an element using said carbon nanotubes are provided. The method includes preparing carbon nanotubes by arc-discharge and employs a coordination chemistry process to remove a catalyst and/or optional promoter used in arc-discharge.

Abstract: Carbon nanotubes, a method for preparing the same and an element using the same are provided. The method for preparing carbon nanotubes includes synthesizing carbon nanotubes from carbon source using an arc-discharge method in the presence of catalysts and promoter, wherein the promoter contains an element capable of reducing the surface energy of carbon nanotubes. Carbon nanotubes with high purity and narrow diameter distribution can thus be prepared.

Abstract: An efficient and cost-effective method for treating carbon nanotubes (CNTs) is provided. The method includes comprising: dispersing said carbon nanotubes in a dispersing medium to prepare a dispersion system; mixing said dispersion system with adsorbent so that type-specific carbon nanotubes contained in said dispersion system are absorbed onto the adsorbent, wherein the adsorbent is modified by a chemical/biological modifier so as to have different adsorption selectivity to carbon nanotubes of different types; and separating the adsorbent from the dispersion system, whereby the type-specific carbon nanotubes adsorbed onto the adsorbent is separated from the carbon nanotubes of another type enriched in the dispersion system; carbon nanotubes produced by the treatment method, and CNTs devices comprising thereof.

Abstract: Methods for preparing flexible transparent conducting carbon nanotube (CNT) films, the CNT film prepared from said methods, a method of treating CNT film by using thionyl bromide (SOBr2) as a dopant are provided. A novel CNT film laminate with a sandwich structure are also provided, a transparent, flexible anode including the CNT film and an organic light-emitting diodes (LEDs) including the anode are also provided. The method of the present application can very quickly and completely remove the filter membrane, compared with a general immersion method. CNTs are not destroyed by the “soft method”, which will allow for expanded applications in electroluminescent or photovoltaic devices.

Abstract: A method for treating carbon nanotubes is proved, which comprises treating the carbon nanotubes with an aqueous solution containing hydroxyl radicals (HO.).

Abstract: Tri- or tetrafluorophthalimides are produced in a halogen-exchange reaction utilizing a metal fluoride salt and a dihydrocarbyl sulfoxide as the solvent. No phase-transfer catalyst is employed. The process has been found capable of producing the fully fluorinated phthalimide in yields of over 90% GC in reactions performed at 135-155 ° C. in reaction periods of as little as one hour even though no phase-transfer catalyst is employed.