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aromatic ketone     
相关语句
  芳香酮
     Mannich reaction between aromatic ketone, aromatic aldehyde and aromatic amine also proved to be feasible in [bmim]BF4.
     芳香酮、芳香醛和芳香胺三组分的Mannich反应在[bmim]BF_4中进行也是可行的。
短句来源
     Chiral Salen-Co(Ⅱ) Complex Catalyzed Asymmetric Reduction of Aromatic Ketone
     手性Salen-Co(Ⅱ)配合物催化芳香酮不对称还原反应研究
短句来源
     The Ir-complex of 9-amino (9-deoxy) epicinchonine was also applied in the hydrogenation of seven aromatic ketone substrates, resulting in a high catalytic activity (80%~90%) and high enantioselectivity (95%~97% ee, except 72% ee for 4-chloroacetophenone ). This is the first case using Cinchona alkaloids skeleton in the iridium catalyzed asymmetric reactions.
     将9-氨基(9-脱氧)表辛可宁的Ir配合物用于其它芳香酮的不对称氢转移反应时,该配体也显示了很高的催化活性(80%~90%收率)和对映选择性(除对氯苯乙酮ee值为72%外,其余芳香酮ee值均为95%~97%).
短句来源
     1. Mannich reaction in acidic ionic liquid [bmim]BF4 acting as the catalyst and solventMannich reaction for formaldehyde, aromatic ketone and aliphatic amine hydrochloride was investigated in [bmim]BF4. Reactions can performance smoothly without any proton acids or Lewis acids.
     1.酸性离子液体[bmim]BF_4作为溶剂和催化剂的Mannich反应 以酸性离子液体[bmim]BF_4作为溶剂和催化剂,考察了芳香酮、甲醛、二甲胺盐酸盐三组分的Mannich反应。
短句来源
     Under the optimized condition, ethylbenzene, n-propylbenzene, and n-butylbenzene were oxidized to the corresponding aromatic ketone with yields up to 90%, 94%, and 93%, respectively, toluene and p-substituted toluene were oridized to benzoic acid and the corresponding p-substituted benzoic acid with yields of 32%~47%.
     在优化条件下,乙苯、正丙苯和正丁苯分别以高达90%,94%和93%的收率得到相应的芳香酮; 甲苯和对位取代甲苯以32%~47%的收率被氧化为相应的芳香酸.
短句来源
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  芳酮
     Deprotonation of aromatic ketone by sodium amide in liquidammonia and consequent alkylation with α-bromoaromatic ketone produce thekey intermediates for target compounds——1,4-diaryl-2,3-dimethyl-1,4-butane-diones.
     再与另一分子α-溴代芳酮两两偶联,共合成8个重要1,4-二芳基-2,3-二甲基-1,4-丁二酮中间体。
短句来源
     Recent studies on catalysis by heteropoly acid (HPA) for the synthesis of aromatic ketone by Friedel-Crafts acylation reaction and Fries rearrangement of aryl esters are reviewed.
     综述了杂多酸及其盐在合成芳酮的Friedel-Crafts(F-C)酰化反应和Fries重排中的应用,并与其它类型的催化剂作了比较。
短句来源
     Application of Heteropoly Acid on Synthesis of Aromatic Ketone
     杂多酸催化剂在芳酮合成中的应用
短句来源
     Gas chromatography quantitative analysis showed that the opticalyields of asymmetric reduction of aromatic ketone fell between 23.3% ~71.2%.
     通过与 α乙酰氧基 L丙酰氯生成非对映异构体酯,经气相 色谱分析,芳酮的光学产率为 23.3% ~71.2% 。
短句来源
     The intermolecular reductive cross-coupling of diacyl chloride or dicarboxylic ester with aromatic ketone induced by TiCI_4-Zn reagent affords diketone.
     在低价钛(TiC1_4-Zn)试剂作用下,二元酰氯或二元羧酸酯与芳酮发生分子间交叉还原偶联反应生成二酮。
短句来源
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  “aromatic ketone”译为未确定词的双语例句
     Fe-CS/SBA-15 with 2.2% mass fraction Fe exhibits considerable enantioselectivity and catalytic activity for asymmetric hydrogen transfers of aromatic ketone and aliphatic ketone.
     实验结果表明,Fe-CS/SBA-15催化剂中适宜的Fe质量分数为2.2%;
短句来源
     In the transition states of hydrogen atom from the borane moiety to the carbonyl carbon of aromatic ketone, there is a 6 membered B-N-B-H-C-O ring in a twisted chair structure .
     在氢的转移过渡态中 ,存在一个B— N— B— H— C— O六元环 ,该六元环具有扭曲的椅式结构 ;
短句来源
     Shake-flask method was used to determine water solubility (Sw) and n-octanol/water partition coefficient (Kow) for 15 substituted aromatic ketone and aldehyde.
     本文测定了15种芳香族醛酮化合物的溶解度和正辛醇-水分配系数。
短句来源
     A NEW HIGH PERFORMANCE ENGINEERING PLASTICS——AROMATIC KETONE GROUPED RESIN
     新型高性能热塑性工程塑料——聚芳醚酮树脂
短句来源
     The results showed that the sorption behaviors of 12 substituted aromatic ketone compounds could be characterized by linear and non-linear isotherms suggesting different sorption mechanisms.
     研究表明:12种芳香族酮类化合物的吸附等温线有线性和非线性两种形式.
短句来源
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  aromatic ketone
Strong reducing agents, such as phenols and amines, decrease substantially the quantum yield of aromatic ketone consumption in solid polymers.
      
1.In the presence of a Rh-Al2O3 catalyst, the first mole of hydrogen is added to an aliphatic-aromatic ketone, forming an alkylphenylcarbinol and an alkyl cyclohexyl ketone.
      
The reason is thought that the hydroxyl-substituted aromatic ketone has π-electron system to form the condensed chelate ring.
      
The mineral filler (bentonite) was treated by an ammonium salt or an acrylated amine to make it organophilic and allow the acrylic resin containing a photoinitiator (aromatic ketone) to penetrate into the expanded organoclay galleries.
      
Mechanisms of photophysical relaxation processes in aromatic ketone vapor
      
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The aromatic ketone grouped resin described by this paper is a new engineeringthermoplastics which has good performance such as mechanical characteristic at hightemperature, flame res(?)stance, electricity, processibility, resistance to radioactivity and chemi-cal corrosion. It is a good perspective engineering plastics.

介绍了近十年来发展的一种新型热塑性工程塑料——聚芳醚酮树脂。它具有优良的高温机械性能、难燃性、电气性、成型加工性、抗幅射性及耐化学腐蚀性,是一种前途广阔的工程塑料。

The intermolecular reductive cross-coupling of diacyl chloride or dicarboxylic ester with aromatic ketone induced by TiCI_4-Zn reagent affords diketone.

在低价钛(TiC1_4-Zn)试剂作用下,二元酰氯或二元羧酸酯与芳酮发生分子间交叉还原偶联反应生成二酮。

Compositions of combination systems of iron dialkyl dithiocarbamate(FeDRC),aromatic ketone and antioxidant, synergism of various components and their mechanism of polyethylene photodegradation are studied. Results show that performances of polyethylene mulching film containing with this combination systems and their photodegradation controllability are good,and it is fully satisfactory for producing photodegradation-controlled polyethylene mulching bilm.

本文研究了二烷基二硫代氨基甲酸铁(FeDRC)、芳香酮和抗氧剂配合体系的组成,各组分的协同关系及其光降解聚乙烯的作用机理。结果表明,以FeDRC配合体系为添加剂的聚乙烯地膜使用性能和光降解可控性良好,完全适合制造可控光降解聚乙烯地膜。

 
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