查询词典 bromo-cyanogen

A series of the ligands including 6-bromo-piperonal dimethyl acetal, bis (9-fluorenyl) silane, and the dimer of indene have been synthesized and characterized.

合成了溴代胡椒醛二甲基缩醛基配体，合成了手性配体甲基苯基双芴基硅烷，合成了茚的二聚体，对其进行表征，培养单晶并测定了晶体结构。

Odoquinazolin-4(3H)-one,7-methyl-4(3H)-quinazolinone,7-bromoquinazolin-4(3H)-one were synthesized by using anthranilic acid、2-amino-5-nitrobenzoic acid、2-amino-4-nitrobenzoic acid,6-nitro--4(3H)-quinazoline-one、o-amino-terephthalic acid, 2-amino-4-hydroxy benzoic acid、2-amino-5-bromo-benzoic acid、2-amino-5-iodine acid,1、4-butynediol、L-glutamine、isatin anhydride、formamide as starting materials and utilizing microwave-assisted synthetic approach.

本文利用微波辅助合成的方法，以邻氨基苯甲酸、2-氨基-5-硝基苯甲酸、2-氨基-4-硝基苯甲酸、邻氨基对苯二甲酸、2-氨基-4-羟基苯甲酸、2-氨基-5-溴苯甲酸、2-氨基-5-碘苯甲酸、5-甲基-2-氨基苯甲酸等为原料与甲酰胺反应，以及以1，4-丁炔二醇、L-谷氨酰胺与靛红酸酐反应，共合成了13个喹唑啉酮衍生。。。

Optically active 3-bromo-2-butanol is treated with KOH in methyl alcohol to obtain an optically inactive product having the formula .

答：有旋光性的3-溴-2-丁醇经过KOH的醇溶液得到一无旋光性的产物，写出该物质的结构

The bactericidal performance of Tetrakis Hydroxymethyl Phosphonium Sulfate, 2-Bromo-2-nitro-1.3-Propanediol and formalin was studied in a carrier quantitative germicidal test.

通过载体定量试验对四羟甲基硫酸磷、溴硝醇和甲醛溶液的杀菌效果进行测定。

The inhibiting efficiency of bromo-hexadecyl pyridine and 3-methyl pyridine is higher than that of the others.

其中溴化十六烷基吡啶和3-甲基吡啶的缓蚀性能较好。

Finally, 2-Bromo-5-formyl -3-methylpyrrole was prepared by refluence under the alkaline condition. The structures of the synthetic products were characterized by elemental analysis, infrared, gas mass and 1H nuclear magnetic resonance.

对上述各步的合成过程中，通过元素分析、红外光谱、气相质谱和核磁共振光谱等检测手段对所合成的化合物进行了结构表征。

In order to obtained the six-membered ring compound and a thorough assignment of the spectra, and further to prove that the six-membered ring compound was formed from the hydrogen transfer, the compound N-butyl-4-(N-methylphenylamino)-5-amino- 1, 8-naphthalimide 6 was designed to obtained with N-butyl-4-bromo-5-amino-1, 8-naphthalimide and N-methyl phenylamine as the starting material. However it was difficult to obtain the desired product as the different solvent giving the different products except the desired product.

为了能够得到六元环化合物作为定标的物质及其确切的谱图分析结果，并且为了进一步证明由五元环产物通过氢转移得到六元环产物的正确性，设计用N-丁基4-溴-5-氨基-1，8-萘酰亚胺与N-甲基苯胺反应生成N-丁基-4--5-氨基-1，8-萘酰亚胺6，结果发现这种方法很难实现，选择不同的溶剂会生成不同的产物，却都不是目标产物。

Bromo and the volcanic cone of the two, such as island Soaring on the gravel on the ground, Tengger is a local tribal sacred place.

婆罗摩和两个火山锥，如小岛般矗立的砂砾地上，是当地Tengger部族神圣之地。

The synthetic application of the multi-stereocenter β-bromo aldehyde 7a with quaternary carbon was demonstrated in the total synthesis of Amaryllidaceae alkaloid Lycoramine.

四、含有季碳的多立体中心β-溴代醛7a在天然石蒜科生物碱-Lycor--amine全合成中的应用研究。

Production of dye intermediates oxidation products have Anthraquinone, refined anthracene, carbazole, 1 - aminoanthraquinone refined benzene around anthrone, anthrone-bromo-benzene series around.

企业生产的染料中间体系列产品有氧化蒽醌、精蒽、咔唑、1--氨基蒽醌、精制苯绕蒽酮、溴代苯绕蒽酮系列等。

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。