查询词典 hydroxy-acetophenone

A method for analysis of butyl hydroxy anisole in simvastatin had been established by HPLC.

建立了测定辛伐他汀中抗氧化剂叔丁基羟基茴香醚含量的高效液相色谱方法。

The results show that competitive adsorption does not exist between arsenate and chromate on hydroxy-Fe-montmorillonite complex under experimental conditions.

结果表明，低聚合羟基铁-蒙脱石复合体对砷酸根及铬酸根离子有不同的吸附能力，但在实验条件下砷酸根及铬酸根离子在低聚合羟基铁-蒙脱石复合体表面不发生竞争吸附。

The effect of the initial concentration and the addition order of arsenate and chromate on their uptake by hydroxy-Fe-montmorillonite complex was investigated.

在模拟氧化及酸性土壤条件下，用制备的低聚合羟基铁-蒙脱石复合体进行了砷酸根、铬酸根离子的竞争吸附实验，研究了砷酸根离子和铬酸根离子不同用量及不同添加顺序对竞争吸附的影响，并与蒙脱石和含水氧化铁进行了对比。

Induction of apoptosis by arsenic trioxide and hydroxy camptothecin in gastric cancer cells in vitro［J］.

王肇炎。食管癌化疗的演变及其在综合治疗中的作用［J］。

Abstract—3b-Hydroxy-12-oleanen-27-oic acid was an antitumor active oleanane-type triterpenoid from the rhizomes of Astilbe chinensis.

摘要- 3B型-羟基- 12 - oleanen - 27 -乌苏酸是一个抗肿瘤活性齐墩果烷型三萜从根茎 astilbe中华。

Chiral amino-hydroxy compounds have been proved to be a very efficient class of ligands in a variety of catalytic asymmetric syntheses and chiral auxiliary synthesis catalyzed by metallic ions.

手性氨基-羟基化合物是一类用于催化不对称合成和手性辅助合成的重要配体。

When treated withlow-valent titanium, a five-member ring 3H,4H-cycl[3,2,2]azine wasobtained.

发现〓可以促进羰基与双键偶联生成了不常见的六元环，制得了4H，5H，5H-3-Hydroxy-cycl[3，3，2]azine。

The effect of cobalt and nickel p-hydroxy benzoate s on the adhesion between NRand brass was studied.

研究了对羟基苯甲酸钴和对羟基苯甲酸镍对天然橡胶与黄铜粘合的影响。

The new methods to synthesize 6-hydroxy-3, 8-dioxabicyclo[3.2.1]octane, dihydrobenzofuran and benzofuran derivatives are described in this thesis.

本文主要论述了(5R)-6-羟基-3，8-二氧二环[3.2.1]辛烷，苯并二氢呋喃和苯并呋喃类衍生物的合成新方法。

Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.

采用"一勺烩"方法，以4-羟基苯甲腈为起始原料，首先与硫氢化钠和无水氯化镁在N，N-二甲基甲酰胺中反应，所得中间体不经分离，直接加入2-氯乙酰乙酸乙酯进行环合反应，得到2-(4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯（2）；然后通过六亚甲基四胺/三氟乙酸进行Duff反应，得到2-(3-甲酰基-4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯（3）；再经盐酸羟胺/甲酸/甲酸钠体系脱水得到目标化合物。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。