羟基苯

ABSTRACT Immobilized penicillin acylase (from E.coli) was used to catalyze 7 phenylacetamido 3 E propenyl cephalosporanic acid hydrolyzation into 7 amino 3 E propenyl cephalosporanic acid. Then, trans APRA was acylated with hydroxyethyl ester of 4 hydroxy D phenylglycine to obtain trans cefprozil.

以7 苯乙酰氨基 3 E 丙烯基 3 头孢菌素 4 羧酸为原料，在青霉素酰化酶作用下，首先酶法水解得到3 E 丙烯基 3 头孢菌素 4 羧酸，过滤固相酶，滤液调pH分离得到反式APRA固体；在青霉素酰化酶作用下，反式APRA再与对羟基苯甘氨酸乙二醇酯缩合，得到反式头孢丙烯；酶法合成所得的产品与进口反式头孢丙烯对照品一致。

According to the differences of the materials, there are many methods of synthesis for benzofuranol , such as the pyrocatechol method, the cyclohexanone method, the o-chlorophenol method, the nitrophenol method, the methoxy phenol method, and so on.

根据原料的不同，呋喃酚合成方法可分为邻苯二酚法、邻氯苯酚法、环己酮法、硝基苯酚法、愈创木酚法、邻异丙基酚法、羟基苯异酮法等，文章对前几种较常见的合成方法的原理及工艺进展进行了详细的综述，并展望了呋喃酚合成方法的发展趋势。

A novel epoxy resin was obtained through the condensation reaction of the azomethine and epichlorohydrin in NaOH solution.

通过对羟基苯甲醛双缩对苯二胺席夫碱与环氧氯丙烷在NaOH液中缩合，合成一种新型环氧树脂。

In leaf tissue of Arabidopsis, the most abundant hydroxycinnamic acidphenolics are sinapate esters, and the most abundant flavonoids are kaempferol derivatives.

拟南芥药用成分主要有酚类化合物，即羟基苯丙烯酸酚类化合物的芥子酸酯，黄酮类化合物的4，5，7-三羟基黄酮衍生物，芥子酸酯与这种黄酮类化合物具有优良的减少紫外线危害和抗氧化作用。

First, 4-(2, 3-epoxypropoxyl) benzaldehyde was obtained by reaction of 4-hydroxy benzaldehyde and epichlorohydrin. Then, the Wittig reaction was carried out to convert EBD to styryl glycidyl ether.

首先用对羟基苯甲醛和环氧氯丙烷反应制备4-(2， 3-环氧丙氧基)苯甲醛，然后通过Wittig反应将醛基转化为乙烯基得到含环氧基团的功能性单体苯乙烯基环氧丙基醚，最后用ATRP方法聚合单体SGE得到含环氧侧基的聚苯乙烯。

2AN oxygen radicle benzene Mao water solution reaction process in, the hydrogen bromine is sour with acetic acid Mo Er compare for 1:be tetrahydroxy and 2 mols at 1:00|weigh to crystallize in the L hydrochloric acid aqua, the product accepts to lead superior turn

甲氧基苯醌水解反应过程中，当氢溴酸与醋酸摩尔比为1：1时，四羟基苯醌与2mol/L的盐酸溶液中重结晶产品收率最佳

A novel type of photoalignment material based on the esterification reaction of 3,5-dihydroxyl benzyl alcohol and cinnamoyl chloride was firstly reported in this paper. The distinct property of this material is the nonlinear branch conformation and its polarity end with hydroxyl group.

通过在3，5-二羟基苯甲醇分子中的双酚基基团上引入双肉桂酰酯光敏基团的酯化反应，合成了一类新型的分子顶部为羟基极性基团，整个分子构型类似于树枝状的光敏小分子化合物。

Characteristics: According to the principle of forming acnes and furuncles, the product which contains oil-controlling genes, can quickly remove the bacteria on the surface of furuncles and get rid of remaining oil and dirt by soaking into the skin deeply.

主要成份：鲸蜡醇、硬脂醇、对羟基苯甲酯丙二醇、对羟基苯甲酸丁酯等。产品特性：针对痤疮、暗疮的形成原理，采用控油因子，迅速清除痤疮表面细菌，并渗透至肌肤深层，排出残余油脂和污物。

Adopting compound techniques of inorganic nanometer, sol-gel techniques and ultraviolet absorbers are used to obtain new protective materials of hydroxybenoic ketone, benzotriazole and polyvinyl alcohol for the protection of historical relics .

采用无机纳米复合技术，利用溶胶-凝胶方法的分配交联和紫外线吸收剂的添加等工艺手段，筛选出适于文物保护环境的防紫外线照射，又不影响文物展示效果的羟基苯酮类、苯并三唑类及能有效消除弦光，又不影响观赏效果的聚乙烯醇类新型防护材料，以便用以不同环境下的文物保护工作。

A reactive phosphorus-containing compound, bis-phenoxy (3-hydroxy) phenyl phosphine oxide was successfully synthesized to produce the phosphorus-containing flame retardant epoxy resin.

合成了一种含磷二羟基化合物双(3-羟基-苯氧基)苯基磷氧化物，并在此基础上合成了含磷环氧树脂BHPPO-EP。

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。