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- AROMATIC COMPOUNDS: Structure and Reactions. 28芳香化合物:结构和反应。
- Humic acids are usually regarded as polymers of aromatic compounds. 腐殖酸通常被看作是芳烃化合物的聚合物。
- Direct alkoxylation of aromatic compounds is virtually unknown. 事实上还不知道芳香族化合物的直接烷氧基化的方法。
- The course also provides an introduction to the chemistry of aromatic compounds. 本课程同时提供芳香化合物化学的介绍。
- To subject to a reaction that converts a substance into an aromatic compound. 芳构化使某物质经过反应转变为芳香化合物。
- QSAR research of chlorinated aromatic compounds toxicity to Selenastrum capricornutum. 氯代芳香族化合物对羊角月牙藻的毒性及QSAR分析。
- His group has found hundreds of genes that encode enzymes which produce flavourings and aromatic compounds. 他的团队还揭秘了几百种酶的基因,正是这些酶的基因控制了造成浓郁口味和芬芳气味的化合物。
- They found that it was composed of various aromatic compounds and sulfides in addition to large quantities of carbon. 他们发现原来它的组成除了大量的碳,还有各类芳香族化合物和硫化物。
- It included hydroxylic acids,hydrocarbons,alcohols,esters,aldehydes,ketones,aromatic compounds,and steroids,etc. 呈现有较高的隐性致死作用。
- Polycyclic aromatic compounds which are widespread in water, soil and atmosphere are harmful to human health. 摘要多环芳香化合物广泛分布于水体、土壤和大气中,对人类的健康造成了严重的危害。
- In anaerobic environments,chlorinated aromatic compounds were usually degraded by reductive dechlorination. 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。
- Oxidation reaction is an important method for the conversion of functional groups in aromatic compounds. 氧化反应是对芳香族化合物进行官能团转化的重要方法之一。
- Aromatic compounds are easy to take place nucleophilic addition and nucleophilic substitution. 带有吸电子基团的芳环容易与亲核试剂发生亲核加成或亲核取代反应。
- The aromatic compounds in indoor air of Hangzhou have been researched with the method of desorption and GC/MS. 用热解吸/气质联用技术研究了杭州市居室空气中芳香族化合物的组成。
- Active aromatic compounds were bromizated by using bromine-supporting resin as bromizating agent. 用载溴树脂作为间甲基茴香醚、间甲酚等活泼芳香化合物的溴化剂,得到一溴代产物,产率为75-85%25。
- Vitrinite is mostly composed of aromatic compounds,in addition to large amount of short aliphatic-side chain compounds. 与此相反,丝质体结构组成中芳香烃占绝对优势,而脂族结构含量则很少;
- The process is enviro-economics and represents an attractive method for the clean synthesis of a range of nitro aromatic compounds. 该方法在合成硝基芳烃化合物领域具有环境和经济双重意义。
- The photochemical reaction and mechanism of chlorofluorocarbons and aromatic compounds in solid ice was introduced chiefly. 重点介绍了氟氯烃和芳香族化合物在固态冰相中的光化学反应和反应机理。
- The catalytic nitration of the different aromatic compounds was studied on solid acidic catalyst (sulfuric acid-adsorbing silica gel). 研究了固体酸催化剂(硅胶吸附浓硫酸)催化不同种类芳族化合物的硝化反应。
- There were some difference among species.Health ashleaf maple released more terpenoids, but poplars and willow produced more aromatic compounds. 挥发物在种间存在差异,正常的复叶槭挥发大量的萜烯,而杨柳产生苯系物较多。