烯化
- 与 烯化 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
My current research is focusing on carbon nanotubes and grapheme; via both experimental and theoretical methods, and trying to apply them to sensing materials .
2005年毕业于信阳师范学院化学系,现攻读兰州大学有机化学硕士,研究方向:碳纳米管和石墨烯的化学修饰以及理论模拟,并把这些功能化的材料应用于气体传感材料。
-
Thirdly, the acrylic rosin was synthesized by the addition reaction from gum rosin andacrylic acid. The levo-pimaric acid was converted into acrylic pimarie acid throughDiels-Alder addition with acrylic acid. The abietic-type acids in the gum rosin were inisomerization balance under high temperature, and the abietic acid and palstric acid would beconverted into levo-pimaric acid and reacted in the later type.
第三,通过脂松香与丙烯酸加成合成了丙烯酸松香,该反应是左旋海松酸与丙烯酸发生Diels-Alder加成反应生成丙烯海松酸,由于脂松香中的枞酸型树脂酸在高温下处于异构化平衡状态,因此随着反应的进行枞酸、长叶松酸等会异构化为左旋海松酸参与反应。
-
Hydrogen halides also react with β-unsaturatedcarbonyls and.
卤化氢也与不饱和羰基和共轭二烯醇反应。
-
Different methods of extracting tocotrienols from hull-less barley have been studied.
探讨了不同生育三烯酚提取方法:(1)皂化法。
-
Moreover, MeJA induced defense genes, such as pathogenesis-related proteins (PR2a), phenylalanine ammonia-lyase, BX9, and TPS. MeJA also increased DIMBOA and Vannillic acid content of leaves and roots significantly but leaf p-Hydroxybenzoic acid concentration was decreased significantly and Protocatechuric acid was produced in roots only.
1MeJA叶片处理能诱导叶片和根系中丙二烯氧化物环化酶基因、糖基转移酶(BX9)基因、苯丙氨酸转氨酶基因的表达,使叶片和根系中丁布含量升高,同时,6μL/L MeJA处理使第二叶中原儿茶酸含量显著降低,诱导根中产生原儿茶酸,使第二叶中香草酸含量和根中未知物质峰面积显著增大。
-
Isomerized gasoline is the cleanest high-octane gasoline component, which is free of sulfur, olefin and aromatics.
异构化汽油不含硫、烯烃及芳烃,是最洁净的高辛烷值汽油组份。
-
Cis-C=C configuration on 2 position is easily isomerized to trans-form in environment according to literatures, but cycloproyl do it difficut relatively. So, replacement of 2,3- allyl unit by cyclopropyl group might give a practical method to get over the problem.
为解决脱落酸2位双键在环境中易光异构化为反式结构的问题,依据电子等排体原理,将2,3-位的烯丙型的结构改变为环丙型结构,将可能解决光异构化的问题。
-
Occasionally, we observed the four-component iodoamination of 1, 2-allenyl selenides with I〓 in MeCN at room temperature.
我们还发现1,2-联烯基硒醚在无水乙腈中可以与碘发生碘胺化反应生成酰胺,在此反应中溶剂乙腈参与了反应。
-
Firstly, Vinyl ethers were prepared in a one-pot, two-step transformation by O-alkylation reaction of 2-hydroxyalkyl phenyl selenides with primary or secondary organic halides followed by oxidation-elimination with 30 % hydrogen peroxide.
1.2-羟基烷基苯基硒醚和伯、仲卤代烃通过O-烷基化反应,然后用30%的双氧水进行氧化消除反应,提供了&两步、一锅法&合成烯基醚的新方法,该方法反应条件温和,操作简便,产物收率中等到良好(70-85%)。
-
The premixing self-assembly solution of horseradish peroxide with poly(sodium 4-styrenesulfonate) is made by blending HRP and polyelectrolyte PSS,and the active.enzyme muhilayer biofilm is fabricated by altemate deposition of and PDDA on the surface of negative ionized PET.
以阳离子化的辣根过氧化物酶和阴离子聚苯乙烯磺酸钠的预混合溶液,与阳离子聚电解质聚二甲基二烯丙基氯化铵通过逐层组装,在阴离子化聚对苯二酸乙二酯表面构建了多层生物活性膜。
- 推荐网络例句
-
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。
-
This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。