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Bromoesters can react with diselenide s by metallic tin in THF to give α-selnoesters in moderate togood yields.

本文报道在四氢呋喃中通过金属锡促进α-溴代酯与二硒醚反应生成α-硒代酯，反应条件温和，产率良好

A series of dissymmetric Gemini surfactants with the structure ofC_(12H_(25)CH_(3_(2)N~CH_(2_(4)N~CH_(3_(2)C_mH_(2m+1),denoted as C_(12)-4-C_m(m is 14,16,18),have been synthesized with N,N-dimethylalkylamine and 1,4-dibromobutane as the initial reagents.

以N，N-二甲基脂肪胺和1，4-二溴丁烷为原料，合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm，m=12，14，16，18)，并通过1H NMR、MS和元素分析等方法鉴定其结构。

Progress in dissymmetric Gemini surfactants;2. A series of dissymmetric Gemini surfactants with the structure ofC_(12H_(25)CH_(3_(2)N~CH_(2_(4)N~CH_(3_(2)C_mH_(2m+1),denoted as C_(12)-4-C_m(m is 14,16,18),have been synthesized with N,N-dimethylalkylamine and 1,4-dibromobutane as the initial reagents.

以N，N-二甲基脂肪胺和1，4-二溴丁烷为原料，合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm，m=12，14，16，18)，并通过1H NMR、MS和元素分析等方法鉴定其结构。

Using 2-bromo-ethanesulfonic acid sodium salt ,α,ω- binary primary amine and dodecanoic acid as the main raw materials, drawing support from two-step synthesis of experiments—Alkylated reaction and Schotten-Baumann acylation, A series of LAS(12-s-12) gemini surfactants were synthesized.

并以2-溴乙基磺酸钠、α，ω-二元伯胺、月桂酸等为主要原料，借助胺基的烷基化和Schotten-Baumann酰基化反应制备了α，ω-烷撑-双钠盐LAS(12-s-12)表面活性剂，联结基团为亚甲基—(CH2)s—(S=2，4，6，8，12)，取得以下进展

We found that the bromohexadecane canbe transformed into dotriacontane in good yield under heating in thepresence of 〓,This is a new method for manufacturing dotriacontane.

在实验过程中发现在氧化银催化下，溴代十六烷加热发生偶联反应生成正三十二烷，这是一种制备正三十二烷的新方法。

Therefore, this technique can overcome the obstructionfrom electrochemically active BPR and remove the effect of cytochrome c adsorbed on theelectrode surface.

因此，该技术能克服电活性的溴联苯三酚红的干扰并能排除吸附在电极表面的细胞色素C的影响。

The addition of 0.2 mmol/L of cetyltrimethylammonium bromide could change the direction of electroosmotic flow.

由于在背景电解质中加入了0.2 mmol／L十六烷基三甲基溴化铵，因而电渗流的方向与传统的毛细管区带电泳中电渗流的方向相反。

The plasmid DNA bands were detected clearly by agarose-EtBr gel electrophore sis.Two forms of plasmid DNA molecules,namely covalently closed circular DNA mol e-cules and open circular DNA molecules,were observed under electron microscope.

用琼脂糖-溴化乙锭凝胶电泳分析在两株菌的DNA中鉴别出明显的质粒带，用电镜方法在两株菌的DNA制剂中均观察到共价闭合超螺旋和开放型环状两种构型的DNA分子。

Second, Electroreduction of Carbon Dioxide on Nanocrystalline TiO2-CNT Complex Film Electrode in tetrabutylammonium bromide solution and fixation of Carbon Dioxide to organic compounds.

第二部分纳米TiO_2/碳纳米管复合膜电极在四丁基溴化胺水溶液中对二氧化碳的电催化还原及电解固定CO_2为有机化合物的研究 1。

The mechanism of outside cell reaction of electrosynthesis of p-methoxybenzaldehyde and p-bromobenzaldehye is studied by Fourier-transform infrared absorption spectra.

利用红外光谱研究了槽外合成对甲氧基苯甲醛和对溴苯甲醛的反应机理，结果证明：在Ce4+与对取代甲苯的氧化反应中，苯环上甲基被Ce4+氧化的难易受苯环上对位取代基的影响。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新