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！！！！！！价格电议！！！！！！中文名丙酮酸乙酯 英文名Ethyl pyruvate 中文别名2-氧代丙酸乙酯 | 乙基丙酮酸酯 密度1.0±0.1 g/cm3 沸点155.0±0.0 °C at 760 mmHg 熔点-58 °C 分子式C5H8O3 分子量116.115 闪点45 ºC 精确质量116.047340 PSA43.37000 LogP0.05 外观性状透明至黄色液体 蒸汽压3.1±0.2 mmHg at 25°C 折射率1.399 储存条件贮存：将密器密封，储存密封的主藏器内，并放在阴凉， 干爽的位置。 稳定性一、 性质：无色液体。
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三(二亚苄基丙酮)二钯(0)是一种重要的零价钯催化剂，广泛应用于有机合成中偶联、加氢、羰基化等反应。与不同的配体结合使用，原位形成高催化活性的零价钯活性物质，在碳-碳键、碳-杂原子键形成反应中得到广泛应用。在氯代芳烃与苯硼酸的偶联反应中具有很高的催化活性。同样可以用于氯代芳烃与有机锡的Stille偶联、氯代芳烃与烯烃的Heck交叉偶联反应，以及催化分子内烯烃的不对称Heck芳基化反应。这类反应在合成聚合物、液晶材料、功能材料、药物及具有生物活性的化合物等方面都有广泛的用途。
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产品名称： 双(二亚芐基丙酮)钯(0)英文名称：Pd(dba)2产品CAS号：32005-36-0分子式：C34H20O2Pd分子量：566.95双（二亚苄基丙酮）钯是用作电位计膜传感器组件的化合物，可选择性地确定吸烟者尿液中硫氰酸盐的存在。双（二亚苄基丙酮）钯也用作由二环戊二烯合成三环戊二烯的均相催化剂之一。
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32005-36-0Bis(dibenzylideneacetone)palladium(0)Synonym: Palladium(0) bis(dibenzylideneacetone), Pd(dba)2CAS Number: 32005-36-0MDL: MFCD00051942Formula: C34H28O2PdFormula Weight: 575.00 g/molAppearance (Color) Brown to BlackCaution : air sensitiveshelf life :12 month ISO 9001 MAUNFACTURERpharmaceutical compounds OLED intermediates palladium catalystRelated Categories Catalysis, Catalysis and Inorganic Chemistry, Chemical Synthesis, Development Quantities for Research, Homogeneous Pd Catalysts,Palladium CatalystsGeneral descriptionBis(dibenzylideneacetone)palladium(0) (Pd(dba)2) is an air stable Pd0 complex. It is a reagent for the synthesis of allylic substituted cyclopentadienes. It is a homogeneous catalyst. It catalyzes the alkylation of allyl acetates by various nucleophiles under mild conditionsApplicationBis(dibenzylideneacetone)palladium(0) (Pd(dba)2) was employed as catalyst in the following studies:-Synthesis of isomeric 2-aryl-2,5-dihydrofurans, via Heck coupling of aryl bromides with alkenes using neopentyl phosphine ligands.-Heck reaction of benzyl trifluoroacetate and 2,3-dihydrofuran phosphoramidite ligand.-Allylation of stabilized anions.-Cross coupling of allyl, alkenyl and aryl halides with organostannanes.-Cross coupling of vinyl halides with alkenyl zinc species.-Carbonylation of alkenyl and aryl halides.-Employed with cyclic thiourea ligands in an efficient aerobic oxidation of alcohols to aldehydes and ketones.
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Tris(dibenzylideneacetone)dipalladium(0)Tris(dibenzylideneacetone)dipalladiumpd2(dba)3Buy pd2(dba)3 Buy C51H42O3Pd2 Buy CAS 51364-51-3Buy Tris(dibenzylideneacetone)dipalladium(0) JDchem CAS No. 51364-51-3 Molecular Formula:C51H42O3Pd2Molecular Weight:915.7 g/molpurity: 98%,Pd>21.5%Apperance:Black purple powder storage: Sealed, dry, protected from light shelf life: 24 monthMelting point:152-155℃Water solubility:insolublesupplier: JDchemKeywords: dipalladium , dibenzylideneacetoneISO 9001 MANUFATURERPharmaceutical compounds OLED intermediates palladium catalystApplication Palladium Catalyzed Cross-Coupling ReactionsReactant involved in:1.Synthesis of nanosized palladium phosphides upon interaction with white phosphorous2.Preparation of palladium triphenylphosphine carbonyl cluster complexes3.Precursor for synthesis of functionalized multiwalled carbon nanotube-palladium complexes used as catalysts for Heck coupling reactions4.Selective carbon-sulfur bond formation via addition of S-S and S-H bonds to alkynesCatalyst for:1. Suzuki cross-coupling reactions2. PCN- and PCS-pincer palladium complex catalyzed tandem allylationGeneral descriptionTris(dibenzylideneacetone)dipalladium(0) (Pd2(dba)3) participates in the synthesis of azepane.Crystal structure of Pd2(dba)3 has been determined by three-dimensional X-ray data. Crystals of Pd2(dba)3 are reported to crystalize in triclinic system.It is widely used Pd(0) source in Pd-mediated transformations.Its worked related to trace metals basis , Asymmetric synthesis, Catalysis or catalyst, Coupling reactions, Cross couplings, Heck Reaction, Ligands,Organic synthesis,Suzuki coupling, Polymer science, Materials Chemistry ,Column chromatography and Organic Compounds , and Arylations, Aminations, Deprotonations, Hydroxylations, Fluorinations
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