反应 0.5H,以73%的收率获得六乙基亚磷酸胺 参考文献:三氧化硫-六乙基三酰氨基亚磷酸酯体系的双重行为 标题:三氧化硫-六乙基三酰氨基亚磷酸酯体系的双重行为 摘要:加合物 Iii 和 Iv 之间的比率根据反应条件在很宽的范围内变化.从亚磷酸六乙酯与 So 3置于-75 oc 的二氯甲烷中反应得到的反应混合物中分离出的加合物 Iii 和 Iv 之间的比率接近 1:3. 加合物在 160 oc 下真空热解产生三酰氨基磷酸盐 V 和二氧化硫产率为 73%.六乙基三酰氨基亚磷酸酯与初步结合到吡啶(作为吡啶-三氧化硫)的 So 3 反应,以定量收率得到加合物 Iv.通过在-40oc下在二氯甲烷中用五氯化锑处理所得产物以产生供体-受体复合物vi和vii,证明了两种加合物的同时形成. Doi:10.1134/s0012500806120020
专利号:US-2025197431-A1 优先权日:2023-12-15 标 题:Methods and systems for forming a layer comprising silicon and composition and synthesis of silicon precursor 发明人:ROMERO PATRICIO EDUARDO; VERVUURT RENÉ HENRICUS JOZEF; DEZELAH CHARLES; PORE VILJAMI J 权利人:ASM IP HOLDING BV 摘要:Disclosed are methods and systems for forming a silicon-containing layer on a substrate. Further disclosed are composition and synthesis of silicon-containing precursor. The methods for forming a silicon-containing layer comprise executing a plurality of deposition cycles. A deposition cycle comprises a first precursor pulse that comprises exposing the substrate to a first precursor. The first precursor comprises a molecule comprising a P—Si bond. A deposition cycle further comprises a plasma pulse that comprises exposing the substrate to a plasma treatment. The plasma treatment comprises generating a plasma.
专利号:WO-2024061900-A1 优先权日:2022-09-20 标题 :Quantum dot shell synthesis 发明人:WALRAVENS WILLEM; NAKONECHNYI IGOR; MACINTYRE BROWN ALASDAIR ANGUS; PRATO MODESTINO RAFAEL ALBERTO; GRIGEL VALERIIA 权利人:QUSTOMDOT BV 摘要:The invention relates to the synthesis of core/shell/shell quantum dots, particularly to a novel shell synthesis method.
专利号:WO-0069864-A1 优先权日:1999-05-19 标 题 :An improved synthesis of tetrakis (dihydro carbylamino) phosphonium halides 发明人:FLETCHER MICHELLE O; DEVROU PHILIP R; BALHOFF JOHN F; ATKINSON BRIAN 权利人:ALBEMARLE CORP 摘要:An improved, commercially viable process for synthesizing tetrakis(dihydrocarbylamino)phosphonium halides in the absence of oxigen is described. When reacting a tris(dihydrocarbylamino)phosphinimine with a halohydrocarbon and an aqueous solution of a source of hydroxide ion to form a tetrakis(dihydrocarbylamino)phosphonium halide, a combination of increased pressure and liquid organic medium is used. The advantages gained by operating in this fashion include shorter reaction times and the need for only about stoichiometric or slightly more than stoichiometric amounts of halohydrocarbon and source of hydroxide ion.
专利号:US-6552239-B1 优先权日:1999-10-28 标题:Synthesis of cyclopropaneacetylene by a one-pot process 发明人:BRANDS KAREL M J 权利人:MERCK & CO INC 摘要:The present invention relates to a process for the preparation of cyclopropaneacetylene by reacting a ketophosphonate with a diazo-transfer reagent in the presence of non-nucleophilic base in an aprotic solvent to generate a reaction mixture containing a ketodiazophosphonate compound and then reacting the reaction mixture with cyclopropanecarboxaldehyde in a non-nucleophilic base and a protic solvent to yield cyclopropaneacetylene.
专利号:US-10399148-B2 优先权日:2015-06-26 标题:Method for preparing phase-separated lead telluride-lead sulfide nanopowder using solution synthesis and phase-separated lead telluride-lead sulfide nanopowder prepared thereby 发明人:SUNG YUN-MO; CHO KI-HYUN 权利人:UNIV KOREA RES & BUS FOUND 摘要:The present invention relates to a method for preparing a phase-separated lead telluride-lead sulfide nanopowder using solution synthesis and a phase-separated lead telluride-lead sulfide nanopowder prepared by the method. The method includes: (a) mixing tellurium and a first solvent, followed by ultrasonic irradiation to prepare a tellurium precursor solution; (b) mixing an organosulfur compound and a second solvent, followed by ultrasonic irradiation to prepare a sulfur precursor solution; (c) mixing lead oxide, a third solvent, and a fourth solvent and heating the mixture to prepare a lead precursor solution; (d) adding the tellurium precursor solution to the lead precursor solution and allowing the mixture to react; (e) adding the sulfur precursor solution to the reaction mixture of step (d) and allowing the resulting mixture to react; and (f) cooling the reaction mixture of step (e) to room temperature to prepare a phase-separated lead telluride-lead sulfide nanopowder.
专利号:US-2024014337-A1 优先权日:2022-07-05 标题 :Lead Chalcogenide Nanocrystalline Semiconductor Synthesis and Radiation Detection 发明人:KOTOV NICHOLAS; VECCHIO DREW; DAVIS BRANDON; HAMMIG MARK 权利人:UNIV MICHIGAN REGENTS 摘要:A device for radiation detection includes a first electrode, a second electrode spaced apart from the first electrode, and a macroscale structure disposed between the first electrode and the second electrode. The macroscale structure comprises a composite arrangement of nanocrystalline particles. The nanocrystalline particles comprise a lead chalcogenide material. The nanocrystalline particles establish conductive paths between the first electrode and the second electrode without an intervening conductive polymer agent.