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苯甲酰氧基

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A new photoinitiator, 4-phenoxy benzophenone, was synthesized and characterized using diphenyl ether and benzoyl chloride as raw material.

以二苯醚与苯甲酰氯为原料,合成了一种新型的激光光敏刺——4-苯氧基二苯甲酮。

From 3-chloropropene bycondensation with sodium ethylate in ethanol to form 3-ethoxypropene followed by anti-Markovnikov addition with HBr inthe presence of benzoyl peroxide.

3-氯丙烯与乙醇钠在乙醇中回流制得3-乙氧基丙烯,继而在过氧苯甲酰存在下,与溴化氢经反马氏加成制得1-溴-3-乙氧基丙烷,总收率89。

SCE for dihydroartemisininoxy benzoic acid hydrazide at Ag electrode BR buffer solution containing 20% ethanol(V/V, pH 7.2) using electroanalytical chemistry method.

在含20%乙醇的BR缓冲溶液(V/V, pH=7.2)中,利用电分析化学方法测得双氢青蒿素氧基苯甲酰肼(dihydroartemisininoxy benzoic acid hydrazide, DBAH)在银电极上于-0.66 V

A new series of the ligands of liquid crystal polymers with T-shaped two-dimensionl mesogens was synthesied by solution condensation polymerization by using 4,4'-(,-alkylenedioyloxy)-dibenzol dichlorids with 2,4-dihydroxy-4'-alkoxyl azobenzene as the monomers.

以4,4′-二苯甲酰氯和2,4-二羟基-4′-烷氧基偶氮苯为单体,通过溶液聚合,合成了一系列新的含T-型二维液晶基元的液晶高分子配体。

With α-D-glucose as raw material, 3-O-benzoyl-1,2,5,6-O-diisopropylidene-α-D-allofuranose was synthesized by isopropylene protection , oxidation, reduction and benzoylation.

以α-D-葡萄糖为原料,经异丙叉基保护、氧化、还原、苯甲酰化反应合成3-苯甲酰基-1,2,5,6-氧-二异丙叉基-α-D-呋喃阿洛糖。

A three-dimensional large pore zeolite Hβ is used in the benzoylation of anisole instead of the classical Lewis acid catalysts to synthesize the important fine chemical intermediate 4-methoxybenzophenone.

采用高硅铝比、热稳定性好的三维大孔Hβ沸石替代传统Lewis酸催化剂催化苯甲醚的苯甲酰化反应,合成了重要精细化工中间体4-甲氧基二苯甲酮,收率可达92%。

N,N '- ditertbutyl nitroxyl radical, 2, 2,6,6- tetramethyl-4 - hydroxyl piperdinehy droxylamine and its nitroxyl radical, as inhibitors of the BPO- initiated copolymerization of styrene (M 1 ) with acrylonitrile (M2 ), at 60℃,has been studied.

研究了二叔丁基羟胺,二叔丁基氮氧自由基,2,2,6,6-四甲基-4-羟基哌啶羟胺和2,2,6,6-四甲基-4-羟基哌啶-1-氧自由基对过氧化苯甲酰60℃引发的苯乙烯(M1)-丙烯腈(M2)共聚合的阻聚行为。

Using tetrabutyl titanate and methyl methacrylateor 2-Hydroxyethylmethacrylate (HEMA as materials, methacryloxylpropyl trimethoxy siliane as coupling agent, HCl as catalyst, Poly-titania(PMMA-TiO2) nanocomposites and Poly-titania(PMMA-TiO2) nanocomposites were synthesized by sol-gel process.

以盐酸作为催化剂,将钛酸四丁酯水解制备二氧化钛(TiO2)溶胶;随后将所制备溶胶与甲基丙烯酸甲酯、硅烷偶联剂(γ-甲基丙烯酰氧丙基三甲氧基硅烷)相混合,以过氧化苯甲酰作为引发剂,经过聚合、缩合和溶胶-凝胶过程,制备了均匀透明的PMMA-TiO2纳米复合材料和PHEMA-TiO2纳米复合材料。

A series of lanthanide complexes (Ln = Er, Nd, Yb) with infrared emission properties were designed and synthesized by using different anionic ligands [1 -phenyl-3-methyl-4-(4-tertbutylbenzoyl)-5-pyrazolone and l-phenyl-3-methyl-4--5-pyrazolone and 2-naphtoyl trifluoroacetone] and netural ligands (2,2-dipyridine, phenanthroline, triphenylphosphine oxide and water). Three crystal structures of these complexes were obtained and structure studied, and the properties of photoluminescence and fluorescent lifetime were studied in detail.

我们通过选用不同的第一配体[1-苯基-3-甲基-4-(4-异丁酰基)-5-吡唑酮,1-苯基-3-甲基-4-(4-叔丁基苯甲酰基)-5-吡唑酮和2-萘基三氟乙酰丙酮]和第二配体(2,2-联吡啶,邻菲啰啉,三苯基氧膦)合成了16个稀土红外配合物(Ln=Er,Nd,Yb),获得了其中三个配合物的单晶结构,研究了这些稀土红外配合物的光致发光和荧光寿命等性质。

Nine sugars and five sugar alcohols were analysed by HPLC with a differenctial refractometerdetector. p-Methoxyaniline and benzoyl chloride were used to the pre-column derivatization of sugar and sugar alcohol, in which a ultraviolet absorption organic group was added, Then the derivatives were detected sensitively by an UV monitor sensitively.

采用高效液相色谱示差折光检测器,对9种糖和五种糖醇进行了分离检测;另以对甲氧基苯胺和苯甲酰氯为衍生试剂,分别对糖和糖醇进行柱前衍生,使其接上紫外吸收基团,然后用紫外检测器进行检测。

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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。