乙酰苯

Electron-withdrawing groups (F, CF 3 ) decreased the efficiency of the transformation, which has as byproducts benzonitrile and phenethyl N -acetamide.

电子集团撤回(六，比照3)转换效率降低，而作为副产品和苯氮苯甲-乙酰胺。

Experimental solubilities of terephthalic acid dissolved in N,N-dimethyl propionamide, N,N-diethyl propionamide and N,N-diethyl acetamide were determined in the temperature range of

测定了303.2~363.2K温度范围内，对苯二甲酸在N，N-二甲基丙酰胺、N，N-二乙基丙酰胺和N，N-二乙基乙酰胺中的溶解度。

3-Nitrodiphenylamine is generally synthesized by the Ullmann condensation of N-（3-nitrophenyl） acetamide with bromobenzene.

摘 要：间-乙酰氨基硝基苯与溴苯发生Ullmann缩合反应是制备3-硝基二苯胺最常用的方法。

The activity of the co-catalysts consisting of H form zeolites ( HY, H-β and HZSM-5) and SnO in the reaction of anisole with acetyl chloride mainly depended upon the SiO2/Al2O3 molar ratio of the zeolite used.

由H型沸石(HY和H-ZSM-5沸石)和SnO组成的复合催化剂在苯甲醚与乙酰氯的酰化反应中的催化活性主要取决于所用沸石的硅铝比。

In the acylation reaction between anisole with acetyl chloride, The catalyst of ZnCl〓/HY-98 prepared by MWI had the best catalytic activity and the selectivity of p-methoxy acetopheone. The catalytic active centers were ZnCl〓 dispersed in zeolite and the Bronsted acid sites in HY-98 zeolite itself.

在苯甲醚与乙酰氯的酰化反应中，微波固相法制备的ZnCl〓／Y催化剂有相对较好的催化活性和选择性，起催化作用的主要是分散在分子筛表面的ZnCl〓和分子筛本身的B酸。

After the use niter benzene even treatment and the treatment all around, separately makes the electroencephalogram inspection to two groups of case of illness.results: after the use niter benzene even treatment all around, the treatment group electroencephalogram restores quickly to the comparison group, exceptionally leads obviously to be lower than the comparison group.conclusions: the niter benzene is even is treats the recovery period fluorine acetamide to be poisoned patient's effective method, may enable his/her the brain harm to obtain the as soon as possible repair, improves the brain function, makes the unusual electroencephalogram to restore normal or the change for the better as soon as possible.

在使用硝苯地平治疗前和治疗4周后，分别对两组病例均作脑电图检查。结果：使用硝苯地平治疗4周后，治疗组脑电图恢复快于对照组，异常率明显低于对照组。结论：硝苯地平是治疗恢复期氟乙酰胺中毒患者的有效手段，可使其脑损害得到尽快修复，改善脑功能，使异常的脑电图尽早恢复正常或好转。

Project Background and Conditions: The company started research new chemical products in 1998. After two years of efforts, a series of pharmaceutical intermediate sulfathiazole leave instructions, including : 3- methyl sulfathiazole leave instructions, 2- sulfathiazole leave instructions ethanoic acid, 2- acetyl sulfathiazole leave instructions, 2-thiofuran amino ethane ,2-thiofuran acetic, 3,4,5- tighter nitrobenzene have been successfully developed. 2-thiofuran amino ethane are the precursors raw materials of series antibiotic analgesic.

二、项目建设背景及条件：1998年公司开始研究开发高新精细化工产品，经过两年的努力，已成功研制出噻吩系列医药中间体，包括：3-甲基噻吩、2-噻吩乙酸、2-乙酰噻吩、2-噻吩乙胺、2-噻吩乙醇、3，4，5-三氯硝基苯等。2-噻吩乙胺系列噻吩产品使用于血小板及血栓有关的心脏血管病及消炎镇痛等如氯吡格雷、兴孢噻吩钠、兴孢西丁、噻吩洛酸等十几种新药的前体原料，是国家政策鼓励发展和有自主知识产权的项目。

Mm, 5 μm and a UV detector. Elution was performed at a flow rate of 1 mL/min, with a gradient of methanol-acetonitrile-water starting at 80∶10∶10, increasing linearly to 86∶10∶4 in 35 min, then returning to the initial conditions in 5 min. Elution of phenacyl esters was monitored by absorbance at 254 nm. Pentadecanoic acid was used to be an internal standard.

分析所用色谱柱为ZORBAXSB C18柱，以十七酸作为内标，甲醇-乙腈-水为流动相，采用梯度洗脱(梯度洗脱程序为甲醇-乙腈-水由80∶10∶10在35 min内线性变化到86∶10∶4，然后在5 min内恢复到起始比例，流动相流速为1 mL/min)，通过测定苯乙酰甲酯在254 nm处的吸光度值来测定脂肪酸含量。

A series of lanthanide complexes (Ln = Er, Nd, Yb) with infrared emission properties were designed and synthesized by using different anionic ligands [1 -phenyl-3-methyl-4-(4-tertbutylbenzoyl)-5-pyrazolone and l-phenyl-3-methyl-4--5-pyrazolone and 2-naphtoyl trifluoroacetone] and netural ligands (2,2-dipyridine, phenanthroline, triphenylphosphine oxide and water). Three crystal structures of these complexes were obtained and structure studied, and the properties of photoluminescence and fluorescent lifetime were studied in detail.

我们通过选用不同的第一配体[1-苯基-3-甲基-4-(4-异丁酰基)-5-吡唑酮，1-苯基-3-甲基-4-(4-叔丁基苯甲酰基)-5-吡唑酮和2-萘基三氟乙酰丙酮]和第二配体(2，2-联吡啶，邻菲啰啉，三苯基氧膦)合成了16个稀土红外配合物(Ln=Er，Nd，Yb)，获得了其中三个配合物的单晶结构，研究了这些稀土红外配合物的光致发光和荧光寿命等性质。

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。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新