二羰基

èr tāng jī
  • dicarbonyl
二羰基二羰基
二羰基[èr tāng jī]
  1. 二羰基化合物激活人血管内皮细胞核因子κB

    Activation of nuclear transcription factor - κ B by dicarbonyl compounds in cultured human vascular endothelial cells

  2. 1-苯基-3-甲基-5-吡唑啉酮与二羰基化合物的固相反应研究

    Studies on Solid State Reaction of 1-Phenyl-3-methyl-5-Pyrazolone with Dicarbonyl Compounds

  3. ~HNMR法研究β-二羰基化合物的酮&烯醇互变异构体系的溶剂效应

    1 ~ h NMR studies of solvent effect on keto-enol tautomeric equilibrium of β - dicarbonyl compounds

  4. 2苯基3H吲哚3酮的合成及其与1,3二羰基化合物的亲核加成反应

    Synthesis of 2-Phenyl-3H-indol-3-One and Its Nucleophilic Addition with 1,3-Dicarbonyl Compounds

  5. 抗肿瘤鬼臼毒素类衍生物的设计、合成与活性研究及4,5-二羰基阿朴菲生物碱Artabotrine的全合成研究

    Design , Synthesis and Anti-tumor Activity Study of Podophyllotoxin Derivatives and Total Synthesis of a 4,5-Dioxoaporphine Alkaloid-Artabotrine

  6. 顺二羰基(三齿N-配体)铑(Ⅰ)配合物的分子内取代反应

    Intramolecular Substitution Reaction of cis-Dicarbonyl Rhodium (ⅰ) Complexes Containing Tridentate N-Donor Ligand

  7. 4-乙烯吡啶-丁烯酮共聚物与铑的顺二羰基配合物结构和性能研究

    Structures and catalytic properties of 4-vinylpyridine-methyl-vinyl ketone copolymer complexes with cis-dicarbonyl rhodium

  8. 多(三甲硅基)取代环戊二烯基二羰基钼环卡宾配合物的合成和结构

    Syntheses and Structures of Tris ( Trimethylsilyl ) Cyclopentadienyl Molybdenum Cyclic Carbene Complexes

  9. 1,3-二羰基衍生物的合成及胰岛素增敏活性研究

    Preparation and Insulin-sensitizing Activity of Some 1,3-dicarbonyl Derivatives

  10. 异构化的π-丁二烯二羰基(乙氧基芳基卡宾)铁配合物的质谱研究羰基铁粒子的制备与表征

    MASS SPECTRA OF ISOMERIZED π - BUTADIENYL DICARBONYL ( ETHOXYARYL CARBENE ) IRON COMPLEXES The Preparation and Character of Carbonyl Iron

  11. 实验结果表明β&二羰基化合物的平衡组成与底物中取代基类别、浓度及溶剂特性等因素有关。

    The results showed that the equilibrium depended on the substituent and concentration of the substrates and the specific properties of solvents .

  12. 并将该反应推广到了环己基异腈、醛、1,3-二羰基化合物的多组分反应中。

    The protocol has also been extended to a multicomponent reaction of cyclohexyl isocyanide with various aldehydes and 1,3-dicarbonyl compounds catalyzed by piperidine .

  13. 过渡金属卡宾配合物&Ⅱ.π-环戊二烯基二羰基[苯基(三苯基铅基)卡宾]铼配合物的合成

    Transition metal carbene complexes & ⅱ . synthesis of the π - gyclopentadienyl ( dicarbonyl ) [ phenyl ( triphenylplumbyl ) carbene ] rhenium complex

  14. 含烯烃配体的过渡金属配合物的研究Ⅳ.钼和铬的环庚三烯二羰基[乙氧基(芳基)卡宾]配合物的合成和晶体结构

    Studies on Olefin-Coordinating Transition Metal Carbene Complexes IV. Synthesis and Crystal Structure of Cycloheptatriene ( dicarbonyl ) [ etnoxy ( aryl ) carbene ] Complexes of Molybdenum and Chromium

  15. 3-巯酮基-5-羰基-或3,5-二羰基-2,3,4,5-四氢-1,2,4-三嗪-6-羧酸乙酯与氨水及水合肼作用,能分别获在水内稳定的相应酰胺的铵盐及酰肼的肼盐。

    Ethyl 3-thiono-5-oxo-or 3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylate re-acted with aqueous ammonia or with hydrazine hydrate to give stable ammonium salts of the corresponding amides or the hydrazine salts of the corresponding hydrazides .

  16. 碳酸氢铵、醛和1,3-二羰基化合物于70℃无溶剂条件下缩合以86~97%的产率得到1,4-二氢吡啶。

    One-pot condensation of 1,3-dicarbonyl compounds with a range of aldehydes in the presence of ammonium bicarbonate was carried out under solvent-free condition at 70 ℃ to afford 1,4-dihydro - pyridines in 86 % ~ 97 % yields .

  17. 碳酸二甲酯羰基化合成3-氨基恶唑烷酮-2

    Synthesis of 3-Amino-2-Oxazolidone from Dimethyl Carbonate by Carbonylation Reaction

  18. 钌的二甲基氯硅烷羰基化合物和衍生物的合成及表征含面桥基磷硫配体的新颖三核和四核钌羰合簇

    Synthesis and Structure of Novel Trinuclear and Tetranuclear Ruthenium Carbonyl Clusters Containing μ _3-P or μ _3-PR and μ _3-S Bridging Ligands

  19. 合成3-(N,N′-二苯肼基羰基)丙酸乙酯的反应操作方法简单,条件温和,对环境污染小;

    The synthesis of 3 - ( N , N ' - diphenylhydrazinocarbonyl ) propionic acid ethyl ester had easy operation , simple artificial route and little environmental pollution .

  20. 化合物2a2f含有二个硫羰基,为深红或深绿色晶体,可用作远红外吸收染料、激光Q开关及有机导体等。

    Compounds 2a 2f are the deep red or deep green crystals because there are two thiocarbonyl groups in the molecule , and they can be used as far infraed adsorbent dyes , laser Q switch and organic conductors .

  21. Zn(OAc)2·2H2O催化草酸二苯酯脱羰基合成碳酸二苯酯反应的研究

    Study on the synthesis of diphenyl carbonate from decarbonylation of diphenyl oxalate over Zn ( OAc ) 2 · 2H_2O

  22. 丙醇氧化羰基合成碳酸二丙酯的研究羰基钴化合物催化环氧乙烷氢酯基化反应研究

    Study on Hydroesterification of Ethylene Oxide Catalyzed by Carbonyl Cobalt Compounds

  23. 二硝基甲苯还原羰基化钯络合物催化剂的研究

    Study on Palladium Complex Catalyst for Reductive Carbonylation of Dinitrotoluene

  24. 二环戊二烯基二羰基钛的化学

    The Chemistry of Bis ( cyclopentadienyl ) Dicarbonyl Titanium

  25. 二级胺与羰基化合物的一步还原烷基化

    Selective Reduction Alkylation of Secondary Amine with Carbonyl Compounds

  26. 高分子载体手性配体在二乙基锌对羰基的加成反应中的应用

    Application of polymer - supported chiral ligands in addition reactions of Et_2Zn to aldehydes

  27. 二水·2-羰基丙酸水杨酰腙合铜配(Ⅱ)合物的晶体结构及生物活性

    Crystal Structure and Biological Activity of Copper (ⅱ) Complex with Two Aqua and 2-oxo-propionic Acid Salicyloyl Hydrazone

  28. 关于手性配体催化二烷基锌一羰基的不对称加成生成光活性醇的反应,从催化剂、不对称催化机理与自催化过程、手性放大等方面进行了概述,参考文献50篇。

    Abstract The title reaction is reviewed with 50 references , The catalysts , the mechanism of asymmetric catalysis , the self-catalyzed process and the chiral amplification phenomenon are discussed .

  29. 通过分析正丁醇溶液中的2,4-二硝基苯肼与羰基化合物的反应,确立了最佳测定波长为390nm,即在390nm处饱和醛和不饱与醛具有相同摩尔吸收系数。

    The analysis was based on the reaction of 2,4-dinitrophenylhydrazine with aldehydes in butanol solution . The optimal wavelength of determining the carbonyl compounds is 390 nm where saturated and unsaturated aldehydes has the same molar absorption coefficient .

  30. 微波辐射下2,6-二甲基-3,5-二乙氧羰基-4-二茂铁基-1,4-二氢吡啶的合成和晶体结构

    Synthesis and Crystal Structure of 2,6-Dimethyl-3,5-di ( ethoxycarbonyl ) - 4-ferrocenyl - 1,4-dihydropyridine Under Microwave Irradiation