溴

The monomer ofbromostyrene was synthesized fromβ-bromobenzene by eliminating hydrogenbromide under sodium hydrate.

溴乙基溴代苯在氢氧化钠的作用下，发生溴化氢脱除反应，得到溴代苯乙烯单体。

Within the range of 200mg/L—1000mg/L, the more the initial concentrations of ABA, the more the decolorize velocity of it. The functional relationships between specific growth rate of N1 and temperature, degradation rate of ABA and temperature were constructed, respectively.

通过测定菌株的生长曲线和降解曲线，表明N1菌株的菌体生长和溴氨酸的降解过程是同步进行的；N1菌株对溴氨酸的脱色作用是酶促降解反应的结果，脱色酶需经溴氨酸诱导产生；在一定浓度范围内（200mg/L—1000mg/L），随着溴氨酸浓度的增加，其脱色速度逐渐变慢。

This paper studied two new processes for catalytic synthesis of decabromodiphenyl ether which were carried out distinguishingly by brominating diphenyl oxide with bromine and bromine chloride in the presence of a novel metal catalyst.

本文研究了采用新型金属型催化剂催化合成十溴二苯醚的溴素法和氯化溴法两种新工艺；利用均匀实验设计和单纯形优化试验技术对两种新工艺的工艺条件进行了优化研究，分别确定了两种工艺路线的最佳工艺条件；通过筛选，确定了一种十溴二苯醚的精制新工艺。

With intermediates 1,ω-hexadecanediol and ω-bromo pentadecanol as starting materials,ω-bromo hexadecanoic acid and ω-bromo octadecanoic acid were prepared in four and seven steps of reactions separately.

分别以1，ω-十五烷二酸和1，ω-十六烷二酸为原料，各经过四步有机反应，制备了ω-碘代十六烷酸及含十四、十五、十六碳原子的ω-溴代直链脂肪酸；再以中间产物15-溴代十五烷醇、1，ω-十六烷二醇为原料，各经过四步、七步有机反应，制备了ω-溴代十六烷酸及ω-溴代十八烷酸。

In order to decrease toxicities of retinods and enhance pharmacal effects and gain the relative derivatives with better curing effect and selectivity, structures of retinoic acids were modified by inducing glycosyl groups in this paper.

方法一是在氢氧化钾存在下，以4-二甲氨基吡啶做相转移催化剂，将溴代-O-乙酰基葡萄糖(5a)、溴代-O-乙酰基木糖(5b)、溴代-O-乙酰基乳糖(5c)和溴代-O-乙酰基麦芽糖(5d)分别与异维A酸反应制得1-O-异维A酰-乙酰基单糖(6a，6b)和1-O-异维A酰-乙酰基二糖(6c，6d)，收率为53～65%。

Methods 30 patients with chronic respiratory disease were randomly divided into two groups in a double-blind,parallel comparison study,16 patients in the group received Fudosteine tablets,400 mg,po,tid,and 14 patients in the control group received Ambroxol hydrochloride tablets,60 mg,po,tid,both were treated postprandially and for consecutively 7 days.

方法以盐酸氨溴索片为对照药，采用随机双盲、平行对照的试验方法，将30例有慢性呼吸道疾病的患者随机分为两组，即福多斯坦组16例和盐酸氨溴索组14例。福多司坦组给予福多司坦片，每次400 mg，tid，饭后服用；盐酸氨溴索组给予盐酸氨溴索片，每次60 mg，tid，饭后服用。

Propargyl alcohol was protected by dihydrophran with the catalysis of PPTS ,and then reacted with Ethyl Mag bromide to prepare its corresponding Grignard reagent.

炔丙醇在 PPTS 催化下由二氢吡喃保护，与溴乙烷格氏试剂反应生成相应的格氏试剂，然后与氯甲酸甲酯反应得到羟基丁炔酸甲酯四氢吡喃醚，在 PPTS 催化下脱保护后进行甲磺酰化，由溴化钠进行溴取代后合成了4-溴-2-丁炔酸甲酯，总收率达53%。

The target compound was cut off from the middle of the two benzene ring of Biphenyl Tetrazole and the key step was accomplished through Suzuki Coupling reaction.

第二部分：抗高血压药物——缬沙坦的新合成路线研究我们分别以对溴甲苯，对溴苄溴和对溴苯甲醛为起始原料分三条路线完成了缬沙坦的全合成。

The bromo-polyethylenegylcol-monomethacrylate was synthesized by two steps. Firstly, methylacrylic acid was esterified with polyethylene glycol (PEG, M=200, 400) to give polyethyleneglycol-monomethacrylate Secondly, treatment of PEG-MA with phosphorus tribromide gave the aim product.

以聚乙二醉（M分别为200，400）和甲基丙烯酸进行单酯化反应，所得单酯再与三溴化磷进行溴化反应合成了一种新的两端具有功能团的不饱和溴化物，即溴代甲基丙烯酸单聚乙二醇酯。

Two types of P Br N contained flame retardant,O (2,4,6 1 trioxo 1 oxyphosphabiscyclooctane 4 methylene) O (2,3 dibromopropyl)phosphoric melamine salt and O (2,4,6 tribromophenyl)phosphoric melamine salt,were synthesized from phosphorus oxychloride,pentaerythritol,2,3 dibromopropanol,2,4,6 tribromophenol and melamine,etc.

以三氯氧磷、季戊四醇、2 ，3 二溴丙醇、2 ，4，6 三溴苯酚及三聚氰胺等为原料合成了两种含磷溴氮阻燃剂，即O (2 ，4，6 三氧杂 1 氧基磷杂双环 [2 。2 。2 ]辛烷 4 亚甲基) O 2 ，3磷酸三聚氰胺盐和O (2 ，4，6 三溴苯基)磷酸三聚氰胺盐。

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。