羟基苯

Two: Synthesized a novel rhodamine derivative with a single amidogen, then analyzed and characterized the dye by 1H NMR and EI-MS.

二、以对硝基苯甲醛和八羟基久洛尼定为原料，合成了一种新型的罗丹明荧光染料，并通过核磁共振、质谱等手段对染料结构进行了表征。

Sodium Benzoate, Amyl Cinnamal, Benzyl Alcohol, Eugenol, Hydroxy Citronellol, Benzyl Salicylate, Geraniol, Linalool, Citronellol, Benzyl Benzoate.

苯甲酸钠，戊Cinnamal ，苯甲醇，丁香酚，羟基香茅醇，水杨酸苄酯，香叶醇，芳樟醇，香茅醇，苯甲酸苄酯。

However, the presence of steric hindrance and electron-withdrawing groups on the benzene ring would decrease the activity of phenols.

苯环上有供电子基团的酚类化合物反应活性比较好，而钝化基团的存在，则会降低酚羟基的反应活性。

The optimal separating condition of chromatography analysis was: Shimadzu VP-ODS 150mm4.6mm as chromatographic column; acetonitrile/water (12/88,V/V, Contained 1.25mmol/l phosphoric acid) as mobile phase with flow rate of 1.0ml/min. Macroporous ion exchange resins and activated carbon were applied to enrich the trace level impurities and the main impurities was determined by LC-MS and GC-MS.They were : Benzonitrile , 2-Methyl-8-hydroxyquinoline, 2,6-Pyridinediamine , O-ethyloxime Cyclo-hexanone and compound with 220 molecular weight .

采用离子树脂和活性炭吸附富集这些微量的杂质，并通过液质联用和气质联用对杂质进行了定性分析，鉴定了影响290nm吸收的主要杂质为苯甲腈，2甲基-8羟基喹啉，2，6二氨基吡啶，O-乙基环己酮肟和分子量220的物质。

Hydroxy-2-methyl-1-phenyl propan-1-one (1173) was a more effective photoinitiator to these monomers than that of benzophenone.

与二苯甲酮相比，2-羟基－2-甲基－1-苯基丙酮(1173)对两种单体具有较好的引发效果。

Dihydroxybenzoic acid was prepared by carboxylation of resorcinol in solvent under under atmospheric pressure was studied.

研究了间苯二酚常压羧化法制备2，6-二羟基苯甲酸。

One method of preparation new membrane materials was presented with putting multi-wall carbon nanotube and carboxylic multi-wall carbon nanotube in collodion solution. Carbon nanotubes complex filtering membranes can be obtained by salivate method. Resorcin and alizarin red can be percolated using new membrane individually.

分别将碳纳米管和羟基化碳纳米管均匀分散在火棉胶溶液中，采用流涎法制备出碳纳米管复合膜；并用分光光度法对样液、滤液中的间苯二酚和茜素红的吸光度进行了对比测定，以考察膜的吸附性能。

Benzene,pitch coke, phenol,ocresol,m,pcresol,xylenol,coumarone resin,ammonium sulphate,pure naphthalene,quinoline,refined quinoline 98%,isoquinoline,8hydroxyquinoline,2methyl naphthalene,anthraquinone,carbazole,carbon black.

纯苯，沥青焦，苯酚，邻甲酚，间对甲酚，二甲酚，古马隆树脂，硫酸铵，精萘，喹啉，精喹啉，异喹啉，8羟基喹啉，2甲基萘，蒽醌，咔唑，炭黑。

First, the precursor polymer with azobenzene groups on main-chain was obtained by condensation polymerization between 4,4'-dihydroxyazobenzene and N,N-(2-bromoethyl)aniline through Williamson reaction. Then the azo polymer containing azobenzene groups both on main-chain and side-chain was prepared through an azo-coupling reaction between the precursor polymer and the diazonium salt of 4-nitroaniline.

设计并合成了一种新型的主侧链均含偶氮生色团的聚合物，首先通过4，4'-二羟基偶氮苯与N，N-二溴乙基苯胺之间的Williamson反应缩聚得到主链含偶氮苯基团的先驱聚合物，再通过重氮偶合反应得到目标产物，并利用核磁共振、红外光谱、紫外可见光谱、热分析等手段确认了所制备聚合物的结构。

2,4,4,trichloro-2,-hydroxydiphenylether(HD-244) is one of the most well-marked germicide and germ inhibitor.

中文摘要： 2，4，4'-三氯-2'-羟基二苯醚(HD-244)是市场畅销的一种杀菌剂。本文介绍了 HD-244 的三种合成工艺，并进行了比较。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。