烯丙胺

It afforded a practical method to synthesize chiral allylic amines.

该方法是合成手性烯丙基胺类化合物的一个非常适用方法。

This paper reviews the recent advances in synthesis of chiral allylic amines, mainly discussing the effects of ligands on chemo-and regio-selectivities.

综述了近年来手性烯丙基胺的合成进展，重点介绍了催化剂配体对化学选择性和对映选择性的影响，并阐述了各种类型的反应机理

We studied effects of additives in the allylic amination reaction. We found that4NF could improve the reactivity and enantioselectivity.

对于烯丙基胺化反应，我们研究了外加添加剂对对映选择性的影响，我们发现四丁基氟化铵的加入可以大大提高反应速度及对映选择性。

The Km and Vmax values of amidase for acrylamide were 2.64 mmol/L and 0.6 μmol/, respectively.

以丙烯酰胺为底物时，该酶的Km和Vmax值分别为2.64 mmol/L和0.6 μmol/。

The K m and V max values of the amidase for acrylamide were 2.64 mmol·L-1 and 0.6 μmol·min-1·ml-1, respectively.

以丙烯酰胺为底物时，该酶的 K m和 V max值分别为2.64 mmol·L-1和0.6 μmol·min-1·ml-1。

Modified flocculants were prepared in ionic liquids by grafting AM onto MCC or fir powder, which were dissolved by microwave heating at first. The flocculations of the flocculants were studied by treating with coal slurry water and argil waste water.

以离子液体为介质，用微波(400w， 90℃)溶解过的微晶纤维素或杉木粉和单体丙烯酰胺接枝共聚分别制备了改性的纤维素絮凝剂和木素絮凝剂，考察了改性絮凝剂对煤泥水和陶土污水的絮凝性能。

Photo-induced grafting polymerization of acrylamide onto polyetherurethane was studied with benzophenone as sensitizer under irradiation of 365 nm.

本文研究了以二苯酮为光敏剂，在365nm光照下丙烯酰胺在聚醚氨酯表面的接枝聚合。

Zibo sea of FA factory, covering 20,000 square meters, business owners 10 million yuan in fixed assets 2, 5 10 million yuan of liquidity, is set the strength of the economy, advanced production technology, quality inspection, self-analysis, human resource-rich The integration of chemical manufacturing companies, is China's Anti-corrosion Technology Association member units, Zibo City with the contract and trustworthy enterprises, enterprises have passed ISO9001-2000 international quality management system certification, with import and export right, and its products FA, Acrylamide Crystal has been the international market, exported to Russia, South Korea, Japan, India, New Zealand, more than 10 countries and won wide acclaim and appreciation.

淄博海化糠醇厂，占地面积2万平方米，企业拥有固定资产2千万元，流动资金5千万元，是集经济实力雄厚、生产工艺技术先进、质量检验、分析设备齐全、人力资源丰富于一体化的化工制造企业，是中国防腐蚀技术协会会员单位，淄博市重合同守信用企业，企业已通过ISO9001-2000国际质量管理体系认证，已具备自营进出口权，其产品糠醇、丙烯酰胺晶体已走向国际市场，远销俄罗斯、韩国、日本、印度、新西兰等十几个国家，并赢得了广泛赞誉。

In addition, solvents such as chloroform may help reduce the disassociation energy.

同时PMMA的构像对丙烯酰胺杯芳烃的解离能也有一定的影响。

Using potassium persulfateas initiator and N, N′-methylenebisacrylamideas crosslinker, the graft copolymerization of acrylic acidonto modified cornhusk fiber was carried out.

将玉米秸秆进行提纯改性，采用过硫酸钾为引发剂、N，N-亚甲基双丙烯酰胺为交联剂，使其与丙烯酸接枝共聚合成农用高吸水树脂，通过试验对比最终确定最佳条件为改性玉米秸秆与丙烯酸的质量比为1∶6、丙烯酸中和度为70%、反应时间为4h、烘干温度为60°C；对最佳条件下制备的树脂进行了吸水倍率的测试；对秸秆预处理前后及接枝产物进行了红外谱图分析。

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。