烯基

Also useful are oil-soluble copper dithiocarbamates of the general formula Rc Rd z Cu, where z is 1 or 2, and Rc and Rd are the same or different hydrocarbyl radicals containing from 1 to 18, and preferably 2 to 12, carbon atoms, and including radicals such, for example, as alkyl, alkenyl, aryl, aralkyl, alkaryl and cycloaliphatic radicals.

化学通式为Rc Rd z Cu的油溶性二硫代氨基甲酸铜也适用，式中，z为1或2，Rc和Rd是含1～18（以2～12为宜）个碳原子的相同或不同的烃基，这类烃基的实例包括烷基、烯基、芳基、芳烷基、烷芳基和脂环基。

Applied dodecencylsuccinic acid and diethanolamine as raw materials,dodecencylsuccinic acid diethanolamide was prepared.

以十二烯基丁二酸(T746)和二乙醇胺为原料合成了十二烯基丁二酸二乙醇酰胺防锈剂，探讨了原料质量配比、反应温度、反应时间等对产品性质的影响。

Employing acetyl chloride as the electrophile afforded the β-acetoxyvinyl-γ-butyrolactone 3 as the product, which provided an experimental evidence to the mechanism involving the palladium enolate intermediate.

使用乙酰氮作为亲电试剂得到了β－乙酰氧基烯基－γ－丁丙酯3，这一结果为烯醇钯中间体的机理提供了一个实验证据。

Diels-Alder reaction between β-myrcene and maleic anhydride catalyzed by SO(superscript 2- subscript 4)/TiO2-ZrO2 solid superacid was investigated.

研究了SO(上标 2-下标 4)/TiO2-ZrO2型固体超强酸催化剂的制备及其催化β-月桂烯与马来酸酐的Diels-Alder反应，通过GC、GC-MS和红外分析，确定其主产物为4-（4-甲基－3-戊烯基）－4-环己烯-1，2-酸酐。

Synthesis and Structural Analysis of New Monoterpene Derivatives from β-myrcene ;2. Diels-Alder reaction between β-myrcene and maleic anhydride catalyzed by SO2-4/TiO2-ZrO2 solid superacid was investigated.

研究了SO42-/TiO2-ZrO2型固体超强酸催化剂的制备及其催化β-月桂烯与马来酸酐的Diels-Alder反应，通过GC、GC-MS和红外分析，确定其主产物为4-(4-甲基-3-戊烯基)-4-环己烯-1，2-酸酐。

Five parameters in the process, namely initial starch slurry concentration, pH, reaction temperature, reaction time and anhydrides concentration were investigated.

以轻度水解淀粉为原料，以取代度为衡量标准，采用单因素和正交试验方法研究湿法工艺制备辛烯基琥珀酸淀粉酯，从淀粉乳的初始浓度、pH、反应温度、反应时间和酸酐浓度五个方面研究辛烯基琥珀酸淀粉酯最佳制备工艺。

Plant polyprenols, which have similar structure and biological activity to dolichols in human body, are lipids of polymer with isoprenyl units. However, dolichols are key carriers in biosynthesis process of glycosyl derivatives with protein.

植物聚戊烯醇是一类异戊烯基结构聚合体的类脂化合物，与人体内多萜醇具有相似的结构特征和生理活性，而多萜醇是糖基与蛋白质生物合成的关键载体。

We found that the iodohydroxylation of 1-2-allenyl selenides with I〓 and water can smoothly proceed in aqueous MeCN at 0℃.

我们发现在乙腈水溶液中，1，2-联烯基硒醚可以和碘发生羟碘化作用，碘和羟基高度区域和立体选择性加成到1，2-联烯基硒醚的β，γ-位。

Feeding for 24h by third instar larvae of the maize stalk borer induced farnesyl pyrophosphate synthase gene expressing, but had no effect on expression of AOC, BX9, PAL and PR2a genes and DIMBOA content.

3玉米螟3龄幼虫处理24h能诱导玉米根中法呢烯基焦磷酸合成酶基因表达，但不能诱导丙二烯氧化物环化酶、β－1，3葡聚糖酶基因（PR2a）、糖基转移酶（BX9）、苯丙氨酸转氨酶基因表达，同时对第二叶和根中丁布含量无显著影响，使第二叶对羟基苯甲酸及第三叶丁布、对羟基苯甲酸、香草酸含量显著降低。

On the basis of the above N-vinylaiton of amides,the Cu-catalyzed intramolecular C-S coupling of thiols was implemented for the first time with CuI (10 mol%) as the catalyst and K_3PO_4·3H_2O2 equiv.

在酰胺氮烯基化研究的基础上，我们进而开展了烷基硫醇分子内烯基化反应研究。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。