丁胺

The same is carried out in the microwave, ethanol, dichloroethane, sodium carbonate, tetrabutylammonium iodide ammonium dissolved in dimethylformamide, then access to carbon dioxide.

同样是在微波炉中进行，把乙醇，氯乙烷，碳酸钠，四丁基碘化铵溶解在二甲基甲酰胺中，再通入二氧化碳。

The method applied is in accordance with that of the PRC National Standard for the determination of urease activity in soya bean products.

参考了中华人民共和国国家标准大豆制品中尿素酶活性测定方法，进行了正丁基硫代磷酰三胺活性的测定。

The traceless Staudinger ligation of azides and phosphines is an effective method to produce an amide bond.

叠氮化合物和膦硫酯的无痕施陶丁格连接反应是一种有效生成酰胺键的方法。

In addition to this,we discussed the stereochemistry in the synthesis of polyhydroxyα-amino acid based on chiral tert-butanesulfinyl amide.

除此之外，我们还系统讨论了基于叔丁基亚磺酰胺的多羟基取代α-氨基酸合成方法中的立体化学问题。

According to the stereochemistry of products, we proposed that the probably proceeding mechanism and analyzed the stereo controlling effection of N-tert-butanesulfinamide in coupling reaction.

我们对反应进行了深入研究，并根据产物的构型，推测了可能的反应机理和N-叔丁基亚磺酰胺辅基在反应中的立体控制。

Three methods are used to prepare molecular imprinted polymers,which include conventional bulk technique or polymerization with ultraviolet initiated in low temperature and polymerization with silica-gel as sacrificial materials. In the polymerization procedure , Sulfamethazine(SM2)and Sulfisoxazole were used as target template molecules, methacrylic acid and 4-vinylpyridine(4-VP) and acrylamide were selected as functional monomers, ethylene glycol dimethacrylate as crosslinker, azobisisobutyronitrile was used as initator.

主要工作如下：首先，以磺胺异噁唑和磺胺二甲嘧啶为模板，分别以4-乙烯基吡啶，甲基丙烯酸，丙烯酰胺为功能单体，以二甲基丙烯酸乙二醇酯为交联剂，偶氮二异丁腈为引发剂，采用了传统方法(60℃恒温水浴)、牺牲硅胶法及低温紫外光聚合法等三种方法合成了一系列的磺胺类药物印迹聚合物。

The effect of N-bromosuccinimide on the activity of Escherichia coli arginyltRNA synthetase was studied.

用N-溴代丁二酰亚胺对大肠杆菌精氨酰tRNA合成酶中的五个色氨酸残基进行化学修饰研究，发现酶分子所含的五个色氨酸残基中有一个可以被。。。

Two compounds were synthesized with two methods. The two compounds can be synthesized by two steps with triethylamine as catalyst.

分别用氢氧化钠、三乙胺为缚酸剂，3-氨基-2-丁醇、2-氨基-3-戊醇、环己酮和二氯乙酰氯为原料，采用一步法和分步法合成了两种潜在除草剂安全剂。

The preparation of 2,2-dimethyl-3-hydroxy propanal from the condensation of formaldehyde and i-butyraldehyde by using triethylamine as catalyst was studied.

以异丁醛和甲醛为原料，三乙胺为催化剂，羟醛缩合法合成了2，2-二甲基－3-羟基丙醛。

Interactions between zinc dialkydithiosphate and succcinimide dispersants synthesized by different feeds and processes were investigated through changes in solutions behaviors, as determined by viscometry, infrared spectrometer, mass spectrometry and chemical analysis.

借助红外光谱、紫外光谱、粘度、浊度等分析测试方法，考察了用不同的原料和工艺合成的丁二酰亚胺无灰分散剂与 ZDDP 的相互作用。

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。