氧环
![氧环](../cache/1173192.jpg)
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利用溶胶-凝胶技术以SiO2为基体包容乙酰丙酮镍Ni(acac)2·2H2O配合物,制备了分子氧环氧化环己烯的催化剂。
Ni ( acac ) _2 · 2H_2O complex entrapped in SiO_2 by Sol-gel method was used to study the epoxidation of cyclohexene by molecular oxygen .
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溶胶-凝胶包容Salen-Mn(Ⅲ)配合物催化剂的制备及其催化分子氧环氧化苯乙烯反应性能
Preparation and Its Catalytic Performance for Epoxidation of Styrene of the Sol-Gel Salen Mn (ⅲ) Complex
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2-芳基-1,3-二氧环戊烷的合成与表征不同烷基取代的1,3-二氧恶烷的合成和应用
Synthesis and Characterization of 2-Aryl-1,3-dioxolane Synthesis and Application of Different Alkyl-substituted 1,3-dioxane
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2-位取代的4-亚甲基-1,3-二氧环戊烷开环聚合反应研究
Study on ring opening polymerization of 2 substituted 4 methylene 1,3 dioxolane
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硫氧环蛋白相互作用蛋白与糖尿病关系的研究
Relationship between Thioredoxin Interacting Protein and Diabetes Mellitus
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铜基和银基催化剂上丙烯直接分子氧环氧化反应研究
Propylene Epoxidation on Copper-and Silver-b as ed Catalysts with Molecular Oxygen as the Oxidant
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利用红外及核磁共振碳谱分析了胺化反应机理,证明是开氧环反应。
The process of ring opening reaction is proved through analyzing aminating mechanism by IR and NMR .
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18位上的羰基和7~8位上的三元氧环是其活性的可能结合部位;
Carbonyl group on position C18 and epoxy three-membered ring on position C7 ~ C8 are the connecting parts ;
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本发明涉及一种制备包含至少一个另外的含氧环的四氢吡喃衍生物的方法。
The invention relates to a method for producing tetrahydropyrane derivatives which comprise at least one additional ring containing oxygen .
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一锅煮合成2′,4〃-O-双(三甲基硅)红霉素A9-O-(1-异丙氧环己基)肟及其副产物
One-pot synthesis of 2 ′, 4 ″ - O-bis ( trimethylsilyl ) erythromycin A 9-O - ( 1-isopropoxycyclohexyl ) oxime and its by-products
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因此它们在环己烯/分子氧环氧化反应中表现出较好的发展前景,且进一步的研究工作还在进行中。
Therefore , they have shown favorable development prospects in catalytic epoxidation of cyclohexene with molecular oxygen , and further research work should be done .
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环己酮与丙烯酸甲酯及(S)-3-(2′-氧环己基)-丙酸与醇的酯化反应
Esterifications of Cyclohexanone with Methyl Acrylate and ( S ) - 3 - ( 2 ′ - Oxocyclohexyl ) - propionic Acid with Alcohols reactive oxygen species
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N、N-二甲基-α-(1,3-二氧六环-5-)苄胺的合成
Synthesis of N 、 N-dimethyl - ( 1,3-dioxane-5 - ) benzylamine
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二氧六环在CA低压反渗透膜中的作用机理
The action principle of dioxane in CA low pressure RO membrane
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用于1,4-二氧六环合成的ASP型固体酸催化剂
Investigation on ASP-Type Solid Acidic Catalysts Used for Synthesis of Dioxane
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以自合成的手性二氧大环多胺作为手性溶解剂,采用NMR技术对苦杏仁酸进行手性识别研究。
NMR technique is undertaken to study the chiral recognition between mandelic acid and chiral dioxocyclen synthesized by ourselves .
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将异丁醛与1,4丁烯二醇缩合得到产物二氧七环,对产物进行了元素分析和IR分析。
The condensation compound was synthesized by 2 butene 1,4 diol and iso butyric aldehyde , and was characterized by elemental analysis and IR .
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β(3-甲基-2,4-二氧代环己基)丙酸及其衍生物的NMR研究
NMR Study of β - ( 3 - Methyl - 2 , 4 - Dioxocyclohexyl ) Propionic Acid and Its Derivatives
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研究了ASP型固体酸催化剂一缩乙二醇(二甘醇)环化脱水合成1,4-二氧六环的液相反应。
The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied .
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应用水吸收-催化燃烧技术处理PET聚酯生产中排放的含乙二醇、2-甲基-1,3-二氧戊环、乙醛等废气。
A water absorption and catalytic combustion process was used to treat PET polyester waste gas containing ethylene glycol , 2-methyl-1 , 3-dioxolane and acetic aldehyde .
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中间加载铁氧体环棒的TE(10)矩形波导的波阻抗和匹配研究
Research on the wave Impedance and Its Matching in a TE_ ( 10 ) Rectangular waveguide with a Centred Ferrite Toroid
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结果表明,Mannich反应在二氧六环水溶液均相介质中进行,可明显提高反应效率;
The experiments showed that the Mannich reaction in dioxane aqueous solution could improve the reaction efficiency obviously .
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以三氧六环为交联剂的COPNA树脂的合成与性能研究
Study on COPNA resins using trioxane as cross - link agent
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在溶剂THF或二氧六环的存在下制得的苯乙烯-丙烯酸共聚物最适宜于合成高活性的载体钕络合物。
The copolymers prepared by solution polymerization in THF or dioxane were better supporter for the synthesis of highly active supported catalyst .
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考察了无机酸对二甘醇(DEG)脱水环化制备1,4-二氧六环(DOX)反应的催化效果。
The catalytic performance of mineral acids for the synthesis of 1 , 4-dioxane by cyclodehydration of DEG was studied .
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SO4~(2-)/MxOy固体超强酸催化合成1,4-二氧六环
The Study of Catalytic Synthesis of 1 , 4-Dioxane Using SO_4 ~ ( 2 - ) / M_xO_y-Al_2O_3 Solid Superacid Catalyst
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双叠氮甲基氧丁环(BAMO)基聚合物是一类典型的高能量、高密度的含能聚合物。
The polymers of3,3-diazidomethyloxetane ( BAMO ) are typical high-energy and high-density energetic polymers .
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以氯仿为溶剂(固定浓度为65%)时两种螺旋结构均为左旋(正Cotton效应),但二氧六环和四氢呋喃为溶剂时均变为右旋(负Cotton效应)。
When chloroform was used as solvent and the concentration was 65wt % , the handedness of the two helicoidal structures was left handed ( positive Cotton effect ), but when dioxane or THF was used with the same concentration , a reversed handedness was observed .
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GDX树脂和二氧六环的理化性质对水中酚类污染物富集洗脱性能的影响
The Effect of the Physicochemical Properties of GDX Resin and Dioxane on the Performance of Adsorption and Elution for Trace Phenols from Water
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1,3-二氧戊环基LiCF3SO3电解液对锂硫电池正极材料单质硫的电化学性能影响
Effects of LiCF_3SO_3 Dioxolane-based Electrolytes on the Electrochemical Properties of the Sulfur Cathode for Rechargeable Li / S Batteries