CAS: 12038-67-4; Rhenium Heptasulfide

专利信息

专利号:WO-2025083672-A1
优先权日:2023-10-19
标题:Synthesis of rhenium metal nanoparticles with low environmental impact
发明人：TASCA FEDERICO; ZUÑIGA LOYOLA CÉSAR ANTONIO
权利人:UNIV DE SANTIAGO DE CHILE USACH
摘要:The present invention relates to rhenium metal nanoparticles (Re0NP) and their synthesis method with a low environmental impact.

专利号:US-5162495-A
优先权日:1989-11-13
标 题:Synthesis of quinoline and substituted quinoline copolymers
发明人：CHIANG LONG Y; SWIRCZEWSKI JOHN W
权利人:EXXON RESEARCH ENGINEERING CO
摘要:The present invention is predicated on the discovery that quinoline and substituted quinoline derivatives, having substituents in positions other than the 2 and 6 position, undergo polymerization in the presence of tetrahydroquinoline or substituted tetrahydroquinolines and a transition metal sulfide catalyst to produce polymers that have repeating quinoline and substituted moieties. Thus, in one embodiment of the present invention, there is provided a novel method of preparing polymers having the formula (7) which comprises contacting a tetrahydroquinoline having the formula (8) with a quinoline compound having the formula (9) at elevated temperatures and in the presence of a transition metal sulfide catalyst wherein the metal is selected from Groups VIB, VIIB of the periodic table and mixtures thereof and wherein the Rs (i.e. R3, R4, etc.) and the R's (i.e. R'3, R'4, etc.) may be the same or different and are selected from hydrogen, halogen (especially fluoro-, chloro- and bromo-), -NO2, OH, -NH2, -SH, -CN and organic substituents. In the above polymer, x and y represent the relative proportion of bracketed structural quinoline or substituted moieties, and n is an integer equal to or greater than 2.

专利号:US-4727135-A
优先权日:1985-11-15
标题:Synthesis of polyquinoline by the catalytical dehydrogenative polymerization of tetrahydroquinoline
发明人：CHIANG LONG Y; CHIANELLI RUSSELL R
权利人:EXXON RESEARCH ENGINEERING CO
摘要:A new method for the preparation of polyquinoline is discovered. Upon the treatment of tetrahydroquinoline (THQ) with ReS 2+x at the refluxing temperature of THQ, a nearly quantitative yield of polyquinoline is obtained and characterized.

专利号:US-4997962-A
优先权日:1988-06-06
标题:Synthesis of tetrathioperrhenate salts
发明人：WEI LIWEN; HALBERT THOMAS R; STIEFEL EDWARD I
权利人:EXXON RESEARCH ENGINEERING CO
摘要:According to the present invention, an improved method for preparing tetrathioperrhenate salts is provided. Basically, a water soluble, oxygen-containing rhenium compound such as rhenium oxide or a salt containing an oxyanion of rhenium, such as ReO 4 -- , is contacted with an aqueous ammonium sulfide or polysulfide solution in the presence of a cation which is capable of forming an aqueous insoluble salt with tetrathioperrhenate.

专利号:US-4012403-A
优先权日:1972-01-10
标 题:Synthesis of mercapto-substituted silicon compounds
发明人：MUI JEFFREY YICK PUI
权利人:UNION CARBIDE CORP
摘要:This invention relates to a method of reducing beta -cyanoethyltrialkoxysilane to the corresponding mercaptopropyltrialkoxysilane by reaction with sulfur.

专利号:US-6888019-B1
优先权日:2004-02-25
标题 :Method of preparing rhenium complex using borohydride exchange resin
发明人：PARK SANG HYUN; PARK KYUNG BAE; CHOI SUN JU
权利人:KOREA ATOMIC ENERGY RES
摘要:Disclosed is a method of preparing a rhenium complex by use of a borohydride exchange resin, including dissolving perrhenic acid in a solution containing ethylenediamine tetraacetate, mannitol and stannous chloride to obtain a perrhenic acid solution (step 1), which is then mixed with disulfide in the presence of a borohydride exchange resin and reacts at room temperature, to obtain a rhenium complex (step 2). The preparation method of the current invention is characterized in that rhenium is reduced to have a desired oxidation number through the dissolving of the step 1, whereby the reaction of the step 2 can occur at room temperature. In addition, use of the borohydride exchange resin as a reducing agent results in direct formation of the rhenium complex of sulfide from disulfide, without the need of synthesis of thiol-protected S-precursor. Therefore, radioactive pharmaceuticals having high values can be economically and efficiently produced.