CAS: 2037-26-5; 1,2,3,4,5-Pentadeuterio-6-(Trideuteriomethyl)Benzene

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CAS号108-88-3 甲苯 | CAS号1070-74-2 1,2-dideuterioethyne | CAS号7727-37-9 氮气 | CAS号6476-36-4 三异丙基膦 | CAS号43019-90-5 苯甲酰氯-D5 | CAS号14940-63-7 deuterium hydro... | CAS号229948-67-8 对溴甲苯-D7 | CAS号106-43-4 对氯甲苯 | CAS号95-49-8 邻氯甲苯 | CAS号84344-06-9 对氯甲苯-D7 | CAS号84344-05-8 2-氯甲苯-D7 | CAS号84344-19-4 4-Nitrotoluene-d7 | CAS号84344-04-7 1,2,3,4-tetrade...

📜2,3,4,5,6-五氟甲苯置于lithium Aluminium Deuteride,Deuterium体系中,用 四氢呋喃 用作溶剂,化学反应 25.0H,以59.2%的收率获得氘代甲苯
参考文献:一种甲苯-D8的合成方法
标题:一种甲苯-D8的合成方法
摘要:本发明涉及一种甲苯‑d8的合成方法,属于氘代化合物的合成技术.将五卤代甲苯缓慢加入到溶剂中,制得澄清溶液a;将溶液a转移至高压釜中,在氮气保护的条件下将氘代试剂缓慢加入到步骤一的溶液中,在加入催化剂b,得到混合液c,过滤,滴加去离子水后得到滤液d;分馏后在加入重水以及催化剂f以及沸石,最后对溶液进行分馏,接取110oc馏分,得到甲苯‑d8.该方法将苯环上的卤氘交换反应与甲基上的氢氘交换反应分步进行,有利于氘代反应完全进行,所得产品氘代率高;催化剂的使用减少了氘代试剂的用量,降低了生产成本,能有效打破国内市场对进口的依赖.

专利信息

专利号:US-12338202-B2
优先权日:2021-09-10
标 题 :One pot synthesis of urea (meth)acrylates
发明人：BESTGEN SEBASTIAN; BEYER SILVIA
权利人:EVONIK OPERATIONS GMBH
摘要:A one-pot synthesis of polymerizable and acyclic urea (meth)acrylates, preferably mono(meth)acrylates, can be performed via in-situ synthesis of urea alcohols or amines followed by direct reaction with a (meth)acrylate reactive diluent. The urea alcohol/amine is obtained from isocyanates and alcohols, amines, or hydroxyamines. Subsequently, the reaction with the (meth)acrylate reactive diluent takes place and the urea (meth)acrylate is directly obtained either in solution with the reactive diluent, or as a pure material after removal of the reactive diluent.

专利号:US-12139504-B2
优先权日:2022-08-09
标 题:Vanadium alkylidene complex, synthesis and use thereof
发明人：BUKHRYAKOV KONSTANTIN; BELOV DMITRY
权利人:BUKHRYAKOV KONSTANTIN; BELOV DMITRY; THE FLORIDA INTERNATIONAL UNIV BOARD OF TRUSTEES
摘要:The subject invention provides catalytical compounds/complexes, compositions comprising such compound/complex, synthesis of the compounds/complexes, and methods of using such compounds/complexes as catalysts in, for example, RCM reactions. Specifically, the subject invention provides the synthesis of the first catalytically active V oxo alkylidene, VO(CHSiMe 3 )(PEt 3 ) 2 Cl, which exhibits superior performance compared to other analogs.

专利号:WO-2024246574-A1
优先权日:2023-06-02
标题:METHOD OF SYNTHESIS OF COLLOIDAL InSb QUANTUM DOTS
发明人：REISS PETER; KWON YONGJU
权利人:COMMISSARIAT A LENERGIE ATOMATIQUE ET AUX ENERGIES ALTERNATIVES; CENTRE NAT RECH SCIENT; UNIV GRENOBLE ALPES
摘要:The present invention relates to a method of synthesis of colloidal InSb quantum dots (InSb QDs) comprising a premixing step of In and Sb precursors at a temperature of less than 100°C, under stirring.

专利号:WO-2024243127-A1
优先权日:2023-05-19
标题:Transformative synthesis of semiconductor nanoclusters with atomic precision via metal-ligand coordination exchange
发明人：ZENG CHENJIE; MA FUYAN
权利人:UNIV FLORIDA
摘要:Precision nanosynthesis is crucial for atomic engineering in nanostructures and mechanistic understanding of nanoscale reactions. But it is a daunting task due to emerging complexities in nanostructures and nanosynthesis. Here, we report the precision synthesis of semiconductor nanocluster via synergizing coordination, cluster, and colloidal chemistry at the nanoscale. In particular, by employing Cu26Se13(PEt2Ph)14 cluster and Cdl2(PPr3)2 coordination complex as precise precursors in colloidal cation exchange reaction, an atomically precise Cd26Se17I18(PPr3)10 cluster is produced at near- unity yield. X-ray crystallography reveals that the child CdSe cluster inherits its icosahedral-packed anion lattice and halide-phosphine-rich surface from parent cluster and complex respectively and further evolves into an enlarged structure. The hybridization of achiral precursors leads to chiral CdSe clusters co-crystallized as a 1:1 mixture of enantiomers. In-situ optical spectroscopy unveils that the reaction proceeds with well-defined pathways. Based on charge and coordination conservations, the structure of child cluster can be atomically linked to precursors via a series of transformations including surface coordination exchange, intra-cluster reorganization, and inter-cluster digestive ripening. The precision nanosynthesis with atomically defined precursors, pathways, and products is expected to further rationalize and diversify nanochemistry.

专利号:WO-9726002-A1
优先权日:1996-01-17
标 题:Synthesis of conformationally restricted amino acids, peptides and peptidomimetics by catalytic ring closing metathesis
发明人：GRUBBS ROBERT H; MILLER J SCOTT; BLACKWELL HELEN E
权利人:CALIFORNIA INST OF TECHN
摘要:A method for synthesizing conformationally restricted amino acids, peptides, and peptidomimetics by ring closing metathesis. The method includes the steps of synthesizing a peptide precursor containing first and second unsaturated C-C bonds and contacting the peptide precursor with an RCM catalyst to yield a conformationally restricted peptide. Suitable peptide precursors may contain two or more unsaturated C-C bonds. These bonds may be olefinic bonds and may be contained in first and second alkenyl groups which may be allyl groups. The RCM catalyst may be a Ruthenium or Osmium carbene complex catalyst and more specifically, a Ruthenium or Osmium carbene complex catalyst that includes a Ruthenium or Osmium metal center that is in a +2 oxidation state, has an electron count of 16, and is pentacoordinated. The method may be carried out using solid-phase-peptide-synthesis techniques. In this embodiment, the precursor, which is anchored to a solid support, is contacted with an RCM catalyst and the product is then cleaved from the solid support to yield a conformationally restricted peptide.

专利号:US-6603070-B2
优先权日:2000-07-21
标题 :Convergent synthesis of multiporphyrin light-harvesting rods
发明人：LINDSEY JONATHAN S; LOEWE ROBERT S
权利人:UNIV NORTH CAROLINA STATE
摘要:The present invention provides a convergent method for the synthesis of light harvesting rods. The rods are oligomers of the formula A 1 (A b+1 ) b , wherein b is at least 1, A 1 through A b+1 are covalently coupled rod segments, and each rod segment A 1 through A 1+b comprises a compound of the formula X 1 (X m+1 ) m wherein m is at least 1 and X 1 through X m+1 are covalently coupled porphyrinic macrocycles. Light harvesting arrays and solar cells containing such light harvesting rods are also described, along with intermediates useful in such methods and rods produced by such methods.