除了脂肪胺外,多种异芳基溴代物甚至氯代物也能很好地与含N-H杂环化合物进行偶联。
Apart from alkyl amines, many aryl bromides, even heterochorides could be efficiently coupled by N-H heterocycles.
用氯醇法生产的环氧丙烷中所合杂质除有乙醛、丙醛外,还有烃类、环氧化物、卤代烷、丙酮、醇类等。
Chlorohydrin production of propylene oxide with the impurities except for acetaldehyde, propionaldehyde and hydrocarbon, epoxides, halogenated alkanes, acetone, alcohols, such as.
方法:以2氨基4 ,5二甲氧基苯甲酸为原料,分别经过环化、氯代、取代等反应,合成了五种目标化合物。
The five quinazoline compounds were prepared by using 2 amino 4,5 dimethoxy benzoic acid as original material, which underwent ring closing, halogenation and substitution.
因此,合适的合成方法是成功获得全氯代芳香化合物的关键。
So searching for suitable synthetical method is the key to succeed in obtaining PPAHs.
使用最多的卤代化合物是氯(次氯酸钠的形式)碘。
The most widely used halogenated compounds are chlorine (in the form of sodium hypochlorite) and iodine.
从扬子石化公司污水处理厂的曝气池出口处取活性污泥样品,经驯化、培养、分离得到能降解氯代酚类化合物的复合菌。
The complex bacteria able to degrade chlorinated phenols were enriched and isolated from the activated sludge sampled at the outlet of aeration tank of the WWTP of the Yangtse Petrochemical Company.
在所有检出的有机物中,有机氯农药类、卤代烃类检出率最高,分别达到60%、57.8%。
Among all the organisms, the organochlorine pesticide category and halohydrocarbon category get the highest detection rate as 60% and 57.8% respectively.
选用SE54型毛细管柱、氢火焰离子化检测器,以三氯代苯为内标物,采用较低的柱温,使内标物与TDI更好地分离,减少了副反应的发生。
The TDI and internal standard chemicals can be separated better and the side reaction is reduced at lower column temperature by use of SE54 capillary column and FID detector.
经过筛选确定苯系物、多环芳烃、有机氯农药、多氯联苯和挥发性卤代烃为主要污染物。
The main pollutants are benzene serial materials, polycyclic aromatic hydrocarbon, organochlorine insecticide, PCB and volatile halogenated hydrocarbon.
氯代芳香族化合物可在厌氧条件下通过还原脱氯作用得以降解。
In anaerobic environments, chlorinated aromatic compounds were usually degraded by reductive dechlorination.
氯代有机物是一类重要的难降解性有机化合物,对人类的健康和环境具有极大的危害性。
Chlorinated organic wastewater is harmful and resistant to degradation, which imperils human being's health and environment seriously.
为完善地下水中氯代烃污染物的处理技术,进行了用改性膨润土吸附模拟水样中四氯化碳的试验研究。
To improve the technology for treating chlorinated hydrocarbons in ground water, adsorption of carbon tetrachloride in simulated water sample by modified bentonite was investigated.
该类化合物是以香芹酮为起始原料,经过氯代反应,缩合反应、硼氢化钠还原和黄鸣龙还原反应得到的。
The compounds are obtained by using carvone as an initial raw material through chlorination reaction, condensation reaction, sodium borohydride reduction and Huang Min-lon reduction reaction.
在碘钨灯照射下,电镀锌板对偶氮染料和氯代有机物的还原降解速率倍增。
Reducing degradation rates of azo dyes and chloroorganics by the electrogalvanizing zinc plate were greatly increased under the irradiation of an iodinetungsten lamp.
硝基苯、2-氯代苯甲酸等污染物的降解率分别为1 0 0 %。
The degradability for nitrobenzene, 2 chloro butenoic acid are all 100%.
硝基苯、2-氯代苯甲酸等污染物的降解率分别为1 0 0 %。
The degradability for nitrobenzene, 2 chloro butenoic acid are all 100%.
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