苯基的
- 与 苯基的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Company will be completed and put into production new products flame-retardant materials CEPPA 2 - carboxy-phenyl ethyl phenyl DCPP Hypophosphorous and phosphorus dichloride.
公司即将建成并投产的新产品阻燃材料CEPPA 2-羧乙基苯基次磷酸及DCPP苯基二氯化磷。
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After esterification, the ethyl-2-chloro-3-phenylpropionate reacts with diethyl malonate under the catalysis of sodium ethylate, and we obtain the corresponding triethyl ester. The-benzylsuccinic acid is formed by the triethyl ester reacting with concentrate hydrochloric acid and taking place hydrolyzation and decarboxylation reaction at the same time. In order to avoid the formation of cinnamic acid, the sodium ethylate and diethyl malonate must be react sufficiently. The course has simple operation, inexpensive materials and better yield.
具体制备工艺为:首先以L-苯丙氨酸为原料采用重氮化方法得到-2-氯-3-苯基丙酸,再经酯化得到-2-氯-3-苯基丙酸乙酯后在乙醇钠催化作用下和丙二酸二乙酯缩合,发生SN2反应,得到相应的三乙酯,然后经水解和脱羧,得到-苄基丁二酸;在实验中乙醇钠要和丙二酸二乙酯充分反应,避免生成肉桂酸乙酯;该过程操作简单,原料便宜,产率较高,总收率可达到26.8%。
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Six derivatives of 4-phenyl-3-phenoloxymethyl-5-mercapto-1,2,4-triazlyole were synthesized from phenoloxyacetyl hydrazide by two-steps reaction under microwave irradiation, then reacted with 2-chloroacetic acid to give six novel derivatives of 2-(3-phenoxymethyl-4-phenyl-[1,2,4]triazole-5-thio)-acetic acid.
在微波辐射条件下,芳氧乙酰肼经两步反应制得4-苯基-3-芳氧甲基-1,2,4-三唑-5-硫酮衍生物,再与氯乙酸反应得到6种尚未见文献报道的2-(3-芳氧甲基-4-苯基-1,2,4-三唑-5-硫基)乙酸衍生物。
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The effect of addition of absorbent resin on the preparation of-1-phenyl-1,2-ethanediol from racemate by stereoinversion was investigated, with whole cells of Candida parapsilosis as catalyst.
以近平滑假丝酵母全细胞为催化剂,考察了添加吸附树脂对不对称氧化还原外消旋苯基乙二醇制备-苯基乙二醇的影响。
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Aniline compounds are used as raw material and reacted with anthranilic acid and then phenyl iodide as alkylating agents to give alkylating products followed by cyclizing with concentrated sulphuric acid to give a N-phenyl-acridone(or 3-ethoxyl-N-phenylacridone).The structure of intermediate and target compound are determined by IR and MS.
以苯胺类化合物为原料,先后以邻氯苯甲酸和碘苯为烷基化试剂进行了N 烷基化反应,再用浓硫酸使其环化制得N-苯基吖啶酮和3-乙氧基-N-苯基吖啶酮,并用红外光谱及质谱仪检测了各中间体及目标产物的结构。
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In this dissertation, synthesis of benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene]dichlororuthenium (41) has been improved.
本论文首先改进了钌卡宾配合物[1,3-二-(2,6-甲苯基)-4,5-二氢咪唑基]-苯亚甲基-三苯基膦-二氯合钌(41)的合成方法。
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A new conjugation molecule L2, based on 2,4,5-triphenylimidazole and 6-phenyl-2,2\'-bipyridine, was synthesized in two steps.
基于2,4,5-三苯基咪唑和6-苯基-2,2\'-二联吡啶,合成了一个新型的共轭分子L2。
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1-phenyl-3-methyl-4-caprylpyrazolone-5 was synthesized from 1-phenyl-3-methyl-pyrazolone-5 and caprylyl chloride, and some extraction parameters were investigated such as the acidity, the concentration of Sr, the time of the extraction and the thinners.
通过1-苯基-3-甲基-吡唑啉酮-5与辛酰氯合成萃取剂1-苯基-3-甲基-4-辛酰基吡唑啉酮-5,并对其萃取Sr的影响因素,如酸度、Sr浓度、萃取时间和稀释剂等进行研究。
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R-1,c-2, t-3, t-4-1,3-bis(4-biphenyl)-2,4-di(4-pyridyl)cyclobutane was obtained in diluted sulfuric acid by photodimerization reaction.
通过反-1-(4-联苯基)-2-(4-吡啶基)乙烯在稀硫酸中的光二聚反应合成了r-1,c-2,t-3,t-4-1,3-双(4-联苯基)-2,4-二(4-吡啶基)环丁烷。
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College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072A novel diselenide porphyrins dimmers was synthesized using 5(4- hydroxylphenyl)-10,15,20- triphenyl porphyrin and selenium as raw materials. The structure of the novel porphyrin was confirmed by 1H NMR, IR, UV, and MS.
以5-(4-羟基苯基)-10,15,20-三苯基卟啉和硒粉为原料,合成了新型二硒双卟啉,用紫外可见光谱,红外光谱,核磁共振氢谱(1H NMR),高分辩质谱对目标产物的结构进行了确认。
- 推荐网络例句
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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。
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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。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。