检索结果-南通市图书馆

nucleophiles promotes the decomposition of electrophilic functional groups of tetracycline in ZVI/H_(2)O_(2) system: Efficiency and mechanism

引用

Chinese Chemical Letters 2024年第10期35卷 414-420页

作者： Xin Li Wanting Fu Ruiqing Guan Yue Yuan Qinmei Zhong Gang Yao Sheng-Tao Yang Liandong Jing Song Bai Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission School of Chemistry and EnvironmentSouthwest Minzu UniversityChengdu 610041China Key Laboratory of General Chemistry of the National Ethnic Affairs Commission School of Chemistry and EnvironmentSouthwest Minzu University.Chengdu 610041China Institute of Environmental Engineering RWTH Aachen UniversityAachen 52062Germany

When zero-valent iron(ZVI)is prepared and applied under neutral conditions,it is easy to form oxides or hydroxides on its surface,which hinders the electron release of *** this end,a nucleophile was introduced into the ZVI system to inhibit the precipitation of iron ions,improve the conductivity of the solution,and promote the removal efficiency of electrophilic functional groups in organic *** this study,the addition of nucleophiles such as ethylenediamine,methylamine and dimethylamine to the ZVI/H_(2)O_(2)system resulted in an enhanced removal efficiency of tetracycline(TC)under neutral condition,while electrophiles such as EDTA-2Na and oxalic acid dihydrate impeded the removal of *** results demonstrated that the presence of nucleophiles could effectively promote the release of iron ions and increase the proportion of ferrous in both aqueous solution and solid surface of *** and theoretical calculation results revealed that the electrophilic functional group was eliminated in the TC molecule,and the toxicity of the treated solution was reduced ***,this work provides a selection of the conditions and pollutants applicable to ZVI under neutral pH conditions.

关键词： ZVI nucleophiles Tetracycline Electrophilicfunctionalgroup Electronic transfer

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Studies of Rhodium-catalyzed Ring Opening Reaction of N-Boc-azabenzonorbornadiene with Heteroatom nucleophiles

引用

Chinese Chemical Letters 2006年第6期17卷 717-719页

作者： Er Chang LIU Ding Qiao YANG Ying Feng HAN Jian Xia DONG School of Chemisry and Environment South China Normal UniversityGuangzhou510006

A rhodium-catalyzed ring opening reaction of N-Boc-azabenzonorbornadiene with heteroatom nucleophiles was described. Piperidine and piperazine＇s derivatives were nucleophiles in this reaction. The yields of the produ... 详细信息

关键词： Rhodium-catalyzed N-Boc-azabenzonorbornadiene nucleophiles ring opening.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chemical behaviours of 3-[1'-chloro-3'-(2"-phenyl-1",3"-oxazol-5"-one-4"-ylidene)propen-l'-yl]coumarin towards some nucleophilic reagents

引用

Chinese Journal of Chemistry 1998年第6期16卷 533-537页

作者： EL-DEEN Ibrahim Mohey Faculty of Education Suez Canal University Port-Said EgyptFaculty of Education Suez Canal University Port-Said Egypt

The chemical behaviours of 3-[1'-chloro-3'-(2'-phenyl-1',3'-oxazol-5'-one-4'-ylidene)-propen-1'-yl]coumarin towards nucleophilic reagents (such as hydrolysis,aminolysis,hydroxyl-aminolysis,methanolysis and hydrazinoly... 详细信息

关键词： Chemical behaviours coumarin derivatives nucleophiles

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A New Facile Route to Chlorination of Alcohols via Lewis Acid AlCl<sub>3</sub>

引用

International Journal of Organic Chemistry 2012年第1期2卷 21-25页

作者： Hengchang Ma Zhikang Bao Lianhua Bai Wei Cao Key Laboratory of Polymer Materials of Gansu Province Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou China

Halogenated aluminates AlCl3, applied as efficient chlorination reagent for hydroxyl groups of substitution alcohols is described. Primary and secondary benzylic alcohols could be transformed into corresponding aromatic halides with almost complete conversion and unique selectivity. As chlorination reagent, AlCl3 has an incomparable advantage over others, such as low material cost, commercial availability as well as convenient product isolation.

关键词： Alcohols Lewis Acid nucleophiles Chlorination

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：