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Rice seed storage glutelin could be separated into three acidic and three basic subunit components by SDS-PAGE using 15%~25% gradient acrylamide gel.

利用15%~25%丙烯酰胺梯度凝胶的SDS-PAGE分析法可将水稻种子贮藏谷蛋白分离为3个酸性亚基和3个碱性亚基。

The reaction takes place as soon as 3a is dissolved in solution. With the presence of a tethering terminal vinyl group bound to the vinylidene ligand, the [2+2] cycloaddition of two C=C double bonds readily occurred.

当有一乙烯基键结在丙二烯基上,分子内的两个碳碳双键会马上发生[2+2]的环化加成反应。

The presence of a gem-diphenylmethylene moiety at the vinylidene ligand with the appropriate terminal vinyl or alkynyl group along with the proper steric environment implements such a novel reactivity in the ruthenium vinylidene complexes.

因此推测丙二烯基与末端的不饱和键确实可以进行一些分子内的反应,但是gem-diphenylmethylene 官能基需位於适当的立体位置方可进行。

It starts with an aldol-type condensation in which a solution of the now commercially available E -[3-(4-fluorophenyl)-1-(1-methylethyl)-1 H-indol-2-yl]-2-propenal, 4 , 5 in THF is added to the preformed sodium-lithium salt of tert -butyl acetoacetate 5 at room temperature in THF.

它从一个醛型缩合其中一个解决现在的电子商业可-[3-(4-fluorophenyl)-1-(1-methylethyl)-1吲哚-2-基]-2-丙烯醛、4,5年增加了预四氢呋喃钠-锂盐叔丁基乙酰四氢呋喃在常温5。

In all cases, only the biboronic products with one boryl group adding to the middle carbon and the other to the nonsubstituted terminal carbon of the allene moiety were observed.

两个硼酯基都接於丙二烯基没有取代的末端双键上。立体选择性很高,主要的产物都是Z form的形式。

Otherwise, an intermediary allylamine deposition was covalently linked to the oxide layer by glow discharge, the covalent binding of bioactive protein to the free terminal NH2 groups using glutaraldehyde as a coupling agent was followed.

并利用丙烯胺的电浆处理在钛金属表面键结上胺基(-NH2)的官能基,之后再以交链剂戊二醛来固定生物活性胶原蛋白於低温电浆处理后的钛金属表面。

Acrylamio-2-methyl propane sulfonic acid is applied in the production of water-based latex,which copolymerizes with acrylic acid,styrene or vinyl acetate to turn out latex resin.

2-丙烯酰胺基-2-甲基丙磺酸应用于水基性胶乳的生产过程中,与丙烯酸、苯乙烯或醋酸乙烯发生异分子聚合而生成胶乳树脂。

The copolymers of 2-acrylamio-2-methyl propane sulfonic acid and other water soluble monomers are indispensable chemicals in various papermaking plants,which can be used as water-displacing assistant agent,sizing agent and pigment dispersant of color coating and to enhance the strength of paper.

造纸2-丙烯酰胺基-2-甲基丙磺酸和其他水溶性单体的共聚物,是各类造纸厂不可缺少的化学品,它可作为排水助剂、施胶剂,增加纸的强度,还可作为彩色涂层的颜料分散剂。

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。

Malonyloxyborohydride,a hydroboration reagent,is prepared by reaction of malonic acid and sodium borohydride,and is used to react with dihydromyrcene in THF.

用一种硼氢化试剂———丙二酸与硼氢化钠反应生成的丙二酰氧基硼氢化钠在THF中与二氢月桂烯反应制备香茅醇。

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