乙酰氯

In this dissertation, the stable radical cation salts ofphenothiazine and 10 - alkylphenothiazine alky=〓(〓 hexachloroantimonate,perchlorate and iodide were prepared by one- electron oxidationwith 2,2,6,6-tetramethyl - 4 -acetyloxypiperidine oxoammoniumhexachloroantimonate, perchloric acid/hydrogen peroxide andmolecular iodine respectively, and they were characteried by UV -Vis spectroscopy and ESR spectroscopy.

本文的主要内容有：吩噻嗪和10-烃基吩噻嗪分别被碘、高氯酸／过氧化氢，2，2，6，6-四甲基-4-乙酰氧基哌啶氧铵六氯锑酸盐氧化为相应的正离子自由基碘盐、高氯酸盐、六氯锑酸盐，并用UV-Vis光谱和ESR波谱进行了鉴定和研究。

An improved method of preparation of acetylsalicylyl chloride was also described in this paper.

文中还对乙酰水杨酰氯的制备方法作了改进，收率为75.6％。

Monochloroethylene carbonate is prepared by chlorination of ethylene carbonate with sulfuryl chioride ,a solution of monochloroethylene carbonate in ethylene carbonate is reacted with triethylamine to give vinylene carbonate.A parameter design method was applied to select the optimum synthesis conditions.63.3％ and 78％ yields superior to the conventional for monochloroethylene carbonate and vinylene carbonate were obtained respectively,and the process was also simplified .

以碳酸乙烯酯为原料，用磺酰氯作为氯化剂生成一氯代碳酸乙烯酯，三乙胺为脱卤化剂在碳酸乙烯酯溶剂中合成碳酸亚乙烯酯，对一氯代碳酸乙烯酯和碳酸亚乙烯酯制备的工艺参数进行优化，收率分别达到63.3％和78％，均超过了传统方法，且简化了工艺，缩短了反应时间，易于工业化生产。

Acylamino acid-5-fluorouracil were prepared from acylamino acid chlorides and 5- fluorouracil in the presence of 〓.

邻苯二甲酰氨基酸酰-5-氟尿嘧啶则由邻苯二甲酰氨基酸酰氯与5-氟尿嘧啶在三乙胺的存在下制得。

The yield reached 67.0% The medicinal and pesticidal activities of a part of the compounds have been measured .

在进行氨基酰化时，论文克服了该类嘧啶环上4位氨基在常规条件下不与芳香类和带有强吸电子基如三氯乙酰基酰化试剂发生反应的困难，通过采用在强碱性条件下进行酰化，得以成功。

A novel fluorescent acrylamide monomer, N-(4-Benzooxazol-2-yl-phenyl)- acrylamide, was prepared from o-aminophenol, p-aminobenzoic acid and acryloyl chloride, with polyphosphoric acid as dehydrating agent and triethylamine as deacidification agent.

以邻氨基苯酚、对氨基苯甲酸和丙烯酰氯为原料，以多聚磷酸为脱水剂、三乙胺为脱酸剂，研制了一种新的荧光丙烯酰胺单体N-[4-（苯并噁唑-2-）苯基]丙烯酰胺。

Objective To establish a HPLC method for the determination of aceclofenac in human plasma.Methods Acidified samples of plasma (500μL) were extracted with 4 mL of ethyl acetate. The organic phase was evaporated to dryness by nitrogen at 40℃ water bath. The residue was redissolved in mobile phase and then was determined.

醋氯芬酸是一种具有镇痛作用的非甾体类抗炎药物[1]，化学名为[邻-(2，6-二氯苯基)氨基]苯乙酰乙酸，l992年首先于西班牙上市，具有明显广泛的抗炎作用和强力的解热镇痛作用，其生物半衰期较双氯芬酸长，胃肠耐受性较双氯芬酸好，抗炎活性优于萘普生和保泰松[2]。

Agriculture maize as Indicator plant, by raising it in soil with acetochlor, to study the herbicide antidote N-dichloroacetyl-2-methyl-1-oxa-4-aza-spiro-4.4-nonane on protect maize residual damage from acetochlor.the result of experiment is: the growths of maize is lower than comparison value.

以垦玉6号玉米为指示材料，采用土培法研究了除草剂解毒剂N-二氯乙酰基-2-甲基-1-氧杂-4-氮杂-螺[4.4]壬烷减轻除草剂乙草胺对玉米产生的残留药害。实验结果表明：在施用不同浓度的乙草胺土壤中，玉米植株的各项生长指标均低于空白对照值。

The asymmetric reduction of prochiral P-oxo ester, aromatic ketone and aliphatic ketone to its corresponding chiral alcohol by yeast cells were studied respectively in this work when ethyl 4-chloro-3-oxobutyrate, acetophenone and 2-octanone were as the model substrates.

本文以4-氯乙酰乙酸乙酯、苯乙酮和2-辛酮分别为β-羰基酯、芳香酮和脂肪酮的模型底物，研究了利用活性酵母细胞催化这三类前手性酮不对称还原合成相应手性醇的反应特性。

The quick results cold capsule contains have calculus bovis factitius , pedantic chlorobenzene pain namely agile , caffeine and acetophenetidin aminophenol internally , is that one kind of the people who is not that steroid is similar to analgesic-antipyretic , irritability body constitution is convinced among them to acetophenetidin aminophenol 责任编辑:admin

速效感冒胶囊内含有人工牛黄、酸氯苯即敏、咖啡因和乙酰氨基酚痛，其中对乙酰氨基酚痛是一种非类固醇类解热镇痛药，过敏体质的人服用，可致粒细胞减少，过敏性皮炎；若肾成果减退的病人服用，可致间质性肾炎，以致引起急性肾成果干涸。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。