烯基

  • 网络Alkenyl;Vinyl
烯基烯基
  1. 三苯基锡(IV)烯基或炔基膦酸衍生物的合成与表征

    Synthesis and Characterization of Triphenyltin ( IV ) Derivatives of Alkenyl or Alkynyl Phosphonic Acid

  2. 烯基化合物改性BMI树脂性能研究

    Study on the property of alkenyl compounds modified Bismaleimides

  3. 双(环戊烯基环戊二烯基)ⅣB族金属衍生物的合成和反应

    Synthesis and reaction of bis ( cyclopentenylcyclopentadienyl ) ⅳ B group metal derivatives

  4. 由聚苯乙烯负载烯基硒醚固相合成(E)-1,2-二取代乙烯

    Solid-Phase Synthesis of ( E ) - 1,2-Disubstituted Ethenes by Polystyrene-Supported Vinyl Selenides

  5. Cu(Ⅱ)邻-N-水杨醛烯基苯酚配合物的结构和荧光性质

    Crystal Structure and Fluorescent Properties of Copper (ⅱ) Complex of o-N - salicylidene - aminophenol

  6. 采用加入自制烯基阻燃树脂组份的新方法,合成了一种新型的H级阻燃无溶剂浸渍漆。

    The vinyl-flame retardant resin and thermal-resistant UPR were mixed in styrene ; a new class H flame retardant solventless impregnating varnish was prepared .

  7. 烯基琥珀酸酐(ASA)用于中性造纸施胶剂施胶性能及应用趋势

    Application Trend and Prospect of ASA as Neutral Paper Sizing Agent

  8. 方法以N环戊烯基吗啉、邻甲氧基苯甲醛及多种胺类为原料,经多步反应合成目标化合物,并以二甲苯致小鼠耳肿胀模型测试目标化合物的抗炎活性。

    Methods The target compounds were synthesized from the cyclopentanone , o-methoxybenzaldehyde and amines and were evaluated with the model of xylene-induced ear edema in mice .

  9. 然而要发展石墨烯基电子器件,就必须要在石墨烯上沉积高k栅介质作为顶栅。

    However , in order to develop real graphene-based electronic devices , one has to deposit ultra-thin high-k dielectrics as high efficient gates on graphene .

  10. 中性造纸施胶剂烯基琥珀酸酐(ASA)应用前景

    Application prospect of Alkenyl Succinic Anhydride ( ASA ) as Neutral Paper Sizing Agent

  11. 根据Lewis酸投入量的不同,该中间体可选择性生成烯基醇衍生物或者经重排脱水得到多烯烃衍生物。

    Allyl alcohol derivative or polyene could be produced in high selectivity according to the difference input amout of Lewis acid .

  12. 柱撑化合物Zn2Al-PW(11)Z的结构模型及酯化活性1,1′-[四甲基二硅撑]二环戊二烯基二氯化钛的合成与结构

    Structural Model and Esterification Activity of Zn_2Al-PW_ ( 11 ) Z Pillared Compounds Synthesis and Structure of 1,1 ′ - ( Tetramethyldisilandiyl ) - dicyclopentadienyl Titanium Dichloride

  13. 我们研究了Pd(OAc)2催化的硫醚导向C-H键烯基化反应。

    We studied Pd ( OAc ) 2-catalyzed C-H alkenylation of arenes using thioether as directing groups .

  14. 本文介绍了α-烯基磺酸盐在低温、无磷条件下的洗涤性能,并与LAS、C(12~14)AS进行了比较。

    The detergency of α - olefin sulfonates at low temperatures and phosphate - free detergent was introduced and compared with LAS , C12 ~ 14AS in this paper .

  15. 我们采用Pd(OAc)2/AgOAc/DMF体系,研究了噻吩、呋喃和烯烃直接烯基化反应。

    We studied the direct alkenylation of thiophenes and furans using Pd ( OAc ) 2 / AgOAc / DMF system .

  16. 异戊烯基转移酶基因(ipt基因)的克隆、序列分析及植物表达载体的构建

    Clone and Sequence Analysis of Isopentenyl Transferase Gene and Construction of Plant Expression Vector

  17. 将杨树根癌土壤杆菌菌株(CFCC1001)异戊烯基转移酶基因(ipt)片段克隆和序列测定结果显示与A。

    The 427 bp isopentenyl adenosine transferase gene ( ipt ) fragment from poplar crown gall A.

  18. 茂环上环戊烯基的双键与HBr和卤素发生正常的亲电加成反应。

    The double bond of cyclopentenyl on Cp with HBr , halogen underwent normal electrophilic addition reaction .

  19. 合成了一种烯基琥珀酸酐(ASA)新型乳化剂P-DAVM。

    An ASA new-type emulsifier P-DAVM was synthesized .

  20. 结果表明:四季黄中至少存在2种CTK,即玉米素(Z)和异戊烯基腺苷(iPA)鸦CTK是调节切花菊衰老的主要因素;

    The result indicated there were two kinds of CTKs ( Z and iPA ) in cutting chrysanthemum and CTK was the major factor affecting senescence .

  21. 研究表明,该体系中各种烯烃能够对取代的芳烃进行选择性C-2直接烯基化,产率从中等到良好。

    It was found that a variety of alkenes selectively undergo the direct alkenylation in moderate to good yields .

  22. 在交联氧化反应后,以十二烯基琥珀酸酐作为酯化剂,进行小麦淀粉酯化反应,考察反应温度、反应时间、反应pH值和酯化剂用量等主要因素的影响。

    After cross-linking and oxidation reactions , the wheat starch was esterified with 12-ethylene succinic anhydride as the esterifying agent . By doing so , the effects of the proper reaction temperature , reaction time , pH and the dosage of 12-ethylene succinic anhydride were determined .

  23. 该酶属于异戊烯基转移酶,催化FPP与IPP发生亲电子耦合形成GGPP。

    This enzyme belonged to the isopentenyl transferase , which occurred electronic nucleophilic coupling , catalyzed FPP and IPP to form GGPP .

  24. 钯催化的Heck偶联反应是形成新的C-C键的有效方法,也是芳烃烯基化的重要手段。

    The palladium-catalyzed Heck coupling reaction is an efficient method for the formation of new carbon-carbon bonds and it is also an important way to realize alkenylation of aromatic compounds .

  25. 介绍了烯基琥珀酸酐(ASA)的性质、结构、施胶机理和施胶工艺,着重介绍了ASA在纸板生产中的应用。

    The characteristics , structure , sizing principle and sizing technology of ASA ( Alkenyl Succinic Anhydrides ) are introduced with the focus given on the applications of ASA in the production of quality paperboard .

  26. 以38c为催化剂对烯基磷酸酯43的氢化取得了最好的催化结果(90%ee)。

    The best result ( 90 % ee ) were obtained in the hydrogenation of vinyl phosphinate 43 with 38c as catalyst .

  27. 以蜡质玉米淀粉为原料在优化条件下制备具有乳化能力的低粘度辛烯基琥珀酸淀粉钠(SSOS)。

    Low viscosity of starch sodium octenylsuccinate ( SSOS ) was prepared from waxy corn starch under conditions optimized for development of emulsifying ability .

  28. 在碱性条件下,蜡质玉米淀粉与十二烯基琥珀酸酐(DDSA)反应可制得较高黏度、适宜取代度(DS)的酯化淀粉。

    Dodecenly succinic anhydride ( DDSA ) waxy corn starches with paste top viscosity and degree of substitution ( DS ) were prepared by the base catalyzed reaction with starch granular in aqueous slurry .

  29. 植物萜类合成途径第二阶段包括三种酶,分别为GPPS、FPS和GGPPS,都属于短链异戊烯基转移酶。

    The second stage of the plant terpene biosynthetic pathway consists of three enzymes , respectively , GPPS , FPS and GGPPS , they are belong to the short-chain prenyl transferase .

  30. 以玉米淀粉为原料,通过醚化和酯化双重作用,制备羧甲基辛烯基琥珀酸淀粉衍生物(OS-CMS)。

    As raw material , the corn starch was modified by etherification and esterification to make the octenylsuccinate derivatives of carboxymethyl ( OS-CMS ) .