nitration相关论文
Nitration of Jharia basin coals,India:a study of structural modifications by XRD and FTIR techniques
Four coal samples from Jharia basin,India are treated with nitric acid in glacial acetic acid and aqueous media to find ......
Nitration-mediated deficiency of cystathionine β-synthase activity in diet-induced hyperhomocysteine
Deficiency of cystathionine β-synthase (CBS) activity is the most common cause of hyperhomocysteinemia (HHcy),and incre......
Nitration of Thioredoxin Reductase Increased Susceptibility to Myocardial Ischemia/Reperfusion Injur
The age-related loss of antioxidant defense reduces the recovery from myocardial ischemia/reperfusion injury (MI/R) in a......
本文通过对荣华二采区10...
This paper reviews the achievements in the field of synthesis of new thermally resistant explosive compounds in the year......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
以间羟基苯甲酸、3、4-二氯三氟甲苯为起始原料,以水做溶剂、在催化剂作用下进行醚化反应合成中间体3-[2-氯-4-(三氟甲基)苯氧基]......
本文通过对荣华二采区10...
本文通过对荣华二采区10...
Wet carbon-based solid acid/NaNO3 as a mild and efficient reagent for nitration of aromatic compound
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Fast and Efficient Nitration of Salicylic Acid and Some Other Aromatic Compounds over H_3PO_4/TiO_2-
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
KHSO_4 as an Efficient Catalytic System for the Regiospecific Nitra-tion of Phenols with Metal Nitra
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
A Mild Procedure for the Preparation of o-Nitrophenols by Nitro Urea or Ammonium Nitrate in the Pres
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Selective nitration of phenols using bismuth subnitrate/charcoal in the presence of trichloroisocyan
A mild,efficient and regioselective method for the mononitration of phenolic compounds is described using bismuth subnit......
Zn(NO3)2·6H2O/2,4,6-trichloro-1,3,5-triazine(TCT)a mild and selective system for nitration of phenol
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Mononitration of phenol derivatives by guanidinium nitrate and silica sulfuric acid under mild condi
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Melamine-(H2SO4)3 and PVP-(H2SO4)n as solid acids:Synthesis and application in the first mono- and d
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
A new method for the mononitration of phenol derivatives by poly(4-vinylpyridinium nitrate) and sili
This procedure works efficiently for high selective mono nitration of phenol and substituted phenol to corresponding nit......
采用A/O工艺处理高浓度氨氮废水，考察了在水力停留时间为24h，pH为7.5，硝化反应的适宜温度和溶解氧浓度。结果表明：硝化反应的适宜温度......
Wet carbon-based solid acid/NaNO3 as a mild and efficient reagent for nitration of aromatic compound
Nitro aromatic compound can be obtained in high yields via nitration of aromatic compound with wet carbon-based solid ac......
以双环[3.3.1]壬烷-2,6-二酮为原料,经腙化、消除、环氧化、环合、乙酰化、硝化等步骤,合成了一种新型硝基笼形化合物2-硝基-2-氮......
研究了硝酸铁与水杨酸甲酯的绿色硝化反应.主要产物为3-硝基水杨酸甲酯(O)和5-硝基水杨酸甲酯(P),其选择性与工业化生产比得到了提......
Experimental results in this work demonstrate that PW12-H2SO4/SiO2 catalyst is a good and durable catalyst for vapor pha......
A new efficient synthesis of p-nitrocalix[4]arene from calix[4]arene by using nitrogen dioxide is described. The compoun......
Melamine-(H2SO4)3 and PVP-(H2SO4)n as solid acids:Synthesis and application in the first mono- and d
Melamine and poly vinylpyrrolidone (PVP) reacted with neat sulfuric acid readily to form two new organic solid acids nam......
Mononitration of phenol derivatives by guanidinium nitrate and silica sulfuric acid under mild condi
A mixture of guanidinium nitrate and silica sulfuric acid acts as mild and heterogeneous media for the efficient mono ni......
A mild,efficient and eco-friendly process for the electrophilic nitration is described using N2O5 as a green nitrating a......
A new method for the mononitration of phenol derivatives by poly(4-vinylpyridinium nitrate) and sili
This procedure works efficiently for high selective mono nitration of phenol and substituted phenol to corresponding nit......
A novel and green nitrating reagent has been developed for the nitrification and nitration of arylboronic acids,which ca......
以对甲基苯胺为母体,合成了邻硝基对甲苯胺.产品收率在85%以上.在乙酰化、硝化反应中引入了四氯化碳溶剂.最佳原料配比为对甲基苯......
使用负载型杂多酸为催化剂,N2O5为硝化剂的新型硝化体系,对氯苯的硝化反应进行研究。分别考察了杂多酸类型、载体种类、杂多酸负载......
用硝酸铁对水杨酸甲酯硝化合成了3-硝基水杨酸甲酯和5-硝基水杨酸甲酯。考察了反应时间、反应物配比、反应溶液酸碱性对产物收率和......
用离子交换法制备了改性的Y型分子筛,考察了制备条件对其催化氯苯硝化反应活性的影响,并与其他固体酸催化剂进行了比较.结果表明,......
硝酸铁溶于氨水得到Fe（OH）3后再用硫酸浸泡，经过滤、焙烧制得固体超强酸催化剂Fe2O3／SO4^2以固体超强酸Fe2O3／SO4^2为催化剂、苯和硝酸......
以间二氯苯为原料，经硝化，氟代及还原反应合成２，４－二氟苯胺。探索了各步反应的工艺条件，对提高收率难度较大的氟供的反应，研究了使用季铵盐......
研究了一种微球树脂经混酸硝化后,对轻质烃类中硫醇的吸附行为.研究发现大孔硝化微球树脂对模拟汽油中的1-戊硫醇有很强的吸附能力......
在采用活性污泥法对NH3-N废水进行脱氮处理时,氮的硝化效果是最关键的环节.要使硝化过程获得良好的硝化效果,就必需了解硝化动力学......
研究了以１００％和９８％的硫酸为底酸的两种硝化工艺对合成酸性媒介黑Ｔ质量的影响，结果表明，采用１００％硫酸为底酸比以９８％硫酸为底酸合成的酸性媒介黑Ｔ的质量......
垃圾渗滤液作为一种难处理的有机废水,主要通过生物法对其进行处理.利用陈垃圾反应器对渗滤液进行处理,稳定运行的反应器中存在厌......
借助气相色谱发现正十二烷基苯在硝硫混酸和硝磷混酸中硝化时，一硝化产物中对位异构体可达６０％，较在硝酸乙酸酐中硝化时的对位选择性高１０％，利......
聚苯醚硝化，还原，分别合成了硝化聚苯醚和胺化聚苯醚，最高硝基，氨基取代度分别为９５％，６５％，讨论了各种反应条件对取代度的影响，并对修饰改性的聚苯......
制备了一种低毒性的新型BrCnsted酸性离子液体己内酰胺对甲基苯磺酸（[CP]PTSA）作为催化剂和溶剂，用于催化甲苯与等摩尔的体积分数为67......
在不同焙烧温度下制备了一系列固体铌酸催化剂。测定了固体铌酸催化剂的比表面积、表面酸强度及表面酸量。研究了催化剂焙烧温度、......
研究了硫酸氢钠催化下甲苯用硝酸的硝化。结果表明，在醋酐存在条件下，以CCl4为溶剂，以质量分数为95％的硝酸为硝化剂，反应温度控制在45℃......
用负载型杂多酸为催化剂，N2O5为硝化剂的新型硝化体系，对甲苯的硝化反应进行研究。分别考察了杂多酸类型、载体种类、杂多酸负载量及......
以三氟甲磺酸和己内酰胺为原料制备了一种新型离子液体己内酰胺三氟甲磺酸（[CP]OTf）,用1H NMR、FTIR测试技术对其结构进行了表征。并......
将稀土金属盐负载在己内酰胺类离子液体上组成稀土金属盐和离子液体的复合物作为催化剂和溶剂,用于催化甲苯与等摩尔67%HNO3的硝化......
考察了甲苯在不同离子液体中用NO2／空气体系硝化反应。反应在稍过量的NO2（甲苯与NO2摩尔比为1：1．4）中先于-10～0℃反应一段时间，然后在25℃......
采用高压蒸汽闪爆技术对天然棉纤维素进行预改性处理，以硝酸混酸作为硝化剂，对改性后的纤维素进行硝化，并对硝化产物的含氮量，硝酸酯基......
以苯甲醛为原料,经过自身缩合、氧化、硝化合成间二硝基苯偶酰.重点考察了硝化反应工艺条件对影响反应的因素,对反应温度、混酸浓......
