CAS: 10025-98-6; Potassium Chloropalladite

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专利信息

专利号:US-2024424490-A1
优先权日:2021-01-25
标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles
发明人：WNUK PAWEL; LEWERA ADAM; JURCZAKOWSKI RAFAL; POWALA FILIP; KOLODZIEJCZYK JAN
权利人:UNIV WARSZAWSKI
摘要:The presented invention relates to a method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles, which comprises the following steps:n adsorbing on carbon support complexes of a platinum group metal with a urea complexing agent selected from a group comprising urea, urea derivative, a mixture of urea with at least one urea derivative, and a mixture of at least two urea derivatives; and reducing the complexes adsorbed on the carbon support to metal nanoparticles, forming a product of carbon-supported metal nanoparticles. nn The invention also provides the use of the carbon-supported platinum group metal or metal alloy nanoparticles obtained by the method of the invention as catalyst. n The present invention further relates to a method of adsorption of precursors of platinum group metals on the surface of a carbon support and use of complexes of platinum group metals with urea complexing agent for adsorption of platinum group metal precursors on carbon support.

专利号:WO-2024073221-A1
优先权日:2022-09-29
标题:Synthesis of palladium(0) phosphine complexes
发明人：MACQUEEN PRESTON; GHORAI SUBIR; COLACOT THOMAS
权利人:SIGMA ALDRICH CO LLC
摘要:Provided is an optimized process for the synthesis of palladium(O) phosphine complexes. The process described herein is characterized by a more efficient reaction control, high yield and purity, the use of readily available starting materials, and savings in reaction time and steps, thereby offering increased sustainability when compared to processes reported in the state of the art.

专利号:US-6011171-A
优先权日:1996-08-14
标 题 :Process for synthesis of tertiary carboxylic acids and the esters thereof
发明人：XU QIANG; SOUMA YOSHIE
权利人:JIRO HIRAISHI DIRECTOR GENERAL
摘要:The present invention provides a process for synthesizing tertiary carboxylic acids or the esters thereof having one or two more carbon atoms than the raw material has, comprising reacting in a strong acid (e.g., sulfuric acid, sulfuric acid-phosphoric acid, hydrogen fluoride, fluorosulfuric acid, boron trifluoride.water complex and trifluoromethanesulfonic acid) a raw material compound (i.e., olefin, alcohol, diene, diol or saturated hydrocarbon) with carbon monoxide in the presence of a specific metal carbonyl catalyst (i.e., platinum carbonyl catalyst, palladium carbonyl catalyst and gold dicarbonyl catalyst). The metal carbonyl catalyst is formed by reacting in a strong acid at least one specific metal compounds (e.g., platinum compound such as platinum (II, IV) oxide, platinum (II, IV) hydroxide, a platinum powder, etc.; palladium compound such as palladium (II, III, IV) oxide, palladium (II) hydroxide, palladium (II) sulfate, palladium (II) carboxylate, a palladium powder, etc.; and gold compound such as gold (I, III) oxide, gold (I, III) hydroxide, a gold powder, etc.) with carbon monoxide.

专利号:US-2008269525-A1
优先权日:2007-04-13
标题:Synthesis of stable cyclopropenylidenes
发明人：BERTRAND GUY; CANAC YVES; LAVALLO VINCENT; DONNADIEU BRUNO
权利人:UNIV CALIFORNIA
摘要:The invention provides for stable and isolable cyclopropenylidenes of Formula I and stable and isolable cyclopropenylidene-metal complexes of Formula II, and methods of making thereof.

专利号:US-5728365-A
优先权日:1994-04-29
标 题:Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with divalent inorganic anions
发明人：MARTIN EDWARD S; STINSON JOHN M; CEDRO III VITO; HORN JR WILLIAM E
权利人:ALUMINUM CO OF AMERICA
摘要:There is provided a method for making a divalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free aqueous suspension to form a meixnerite intermediate. This intermediate is then contacted with a divalent inorganic anion, in its acid, acid salt or ammonium salt form, to make a hydrotalcite-like material. The latter is then separated from the suspension. Representative materials include a sulfate- and metavanadate-intercalated hydrotalcite-like material.

专利号:EP-0451213-B1
优先权日:1989-01-20
标题:Derivatives of polyhydroxylated molecules for introducing at least one ramification in an oligonucleotide
发明人：TEOULE ROBERT; ROGET ANDRE; BAZIN HERVE; SAUVAIGO SYLVIE
权利人:CIS BIO INT
摘要:The invention relates to derivatives of polyhydroxylated molecules having the formula (Ia) or the formula (Ib) wherein R1 is a protector radical of a group OH appropriate for the oligonucleotidic synthesis, R2 is a functional radical adapted to the oligonucleotidic synthesis, unsubstituted or substituted by OR1, B is a radical derived from a puric or pyrimidic base comprising at least one substituant OR1. When such derivative is used in oligonucleotidic synthesis, it is possible to fix by means of said radicals OR1 a plurality of nucleotides, molecules of spaces or molecules or markers and the polyhydroxylated derivative, and thus form an oligonucleotide comprising at least one ramification.