3-Nitrodiphenylamine is generally synthesized by the Ullmann condensation of N-（3-nitrophenyl） acetamide with bromobenzene.

摘 要：間-乙酰氨基硝基苯與溴苯發(fā)生Ullmann縮合反應(yīng)是制備3-硝基二苯胺最常用的方法久久视频一二区。

The obtained compound (2) was treated with borane-tetrahydrofuran (B2H6–THF) complex under nitrogen atmosphere in excessive THF for 18 h to give a kind of dark brown oil,followed by ammonolysis with NH3·H2O in autoclave at 100 ℃ for 6 h to produce 2-(5-amino-2- nitrophenyl) ethanol (3) in 84.4% yield.

用硼烷還原5-氟-2-硝基苯乙酸后，接著用氨水在高壓釜中加熱到100 ℃氨解性色av免费精品观看，得到2-(5-氨基-2-硝基苯)乙醇（84.4%）韩国日本在线精品网站。

Temperature is key factor for natural attenuation of nitrobenzene. The present study investigated the nitrobenzene of natural attenuation and nitrobenzene of bio-argumentation at 4℃and 20℃.

利用人工配制的2種不同濃度（1000和100μg·kg-1）的硝基苯污染底泥，研究了4℃和20℃ 2種溫度條件下硝基苯的自然衰減和生物強(qiáng)化降解情況肏屄自拍视频。

My company can provide pesticide, medicine, veterinary medicine intermediates, have 48 kinds of products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane Triethyl Citrate 1,2,3 - three Bromopropane 3 - Chlorine -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-C methyl 1,6 - dibromo-hexane 1 - bromo --4 - p-methoxy benzaldehyde o-bromo-acetic acid propyl bromide p-fluorotoluene dodecane four bromoethane of iodine bromide toluene tert-butane Tributyl Citrate 2 - bromo-p inter - Hydroxybenzaldehyde bromine butane 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide Cyclohexane Cyclopentane bran bromate bromide Malay Dibutyl Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) expressed the hope that customers contact us!

我公司可提供農(nóng)藥日本黄页网站免费大全在线观看，醫(yī)藥，獸藥中間體亚洲一区二区三区无码国产，有四十八種產(chǎn)品(對(duì)溴苯酚對(duì)溴甲苯溴仿 1-溴庚烷檸檬酸三乙酯 1久久福利热久久免费精品，2，3-三溴丙烷 3-氯-4-氟溴苯對(duì)溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1曰曰鲁国产，6-二溴己烷 1-溴-4-硝基苯鄰甲氧基苯甲醛溴乙酸丙酯對(duì)氟甲苯溴代十二烷對(duì)碘甲苯四溴乙烷溴代叔丁烷檸檬酸三丁酯 2-溴氯苯間羥基苯甲醛溴丁烷 2-溴丙酸黎蘆醛溴已烷間溴三氟甲苯對(duì)溴苯腈對(duì)溴乙苯鄰溴甲苯溴代環(huán)已烷溴代環(huán)戊烷糠溴酸馬來(lái)酸二丁酯溴丙烯乳酸乙酯間溴苯胺間溴苯甲醚鄰氟苯酚鄰氟苯腈對(duì)氨基苯甲醛對(duì)溴苯胺對(duì)溴苯甲醛對(duì)溴苯甲酸)希望廣大客戶與我司聯(lián)系香蕉五月开心婷婷！

The main products are: HH-01 fungicides HH-02 organic dispersant HH-03 cationic starch Wood HH-04 cationic starch Department HH-05 modified starch warp sizing agents also sell German Baker Chemical Co., Ltd. Main Products Defoamer series product: E640, T50 Surface Sizing Agent: A281, A288, K532, pesticides / medicine / veterinary medicine a variety of intermediate products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane triethyl citrate 1,2, 3 - Three Bromopropane 3 - chloro -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-methyl 1,6 C - Dibromo Hexane 1 - bromo -4 - nitrobenzene o-methoxy benzaldehyde acid propyl bromide p-fluorotoluene bromo dodecane toluene four of iodine bromide bromoethane three citric acid tert-butane n-butyl 2 - bromo-p-bromo-butane Hydroxybenzaldehyde between 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide bromide Cyclohexane Cyclopentane bran acid dibutyl maleate Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) and other relevant units have been in substantial promotion, and client set up a good relationship of cooperation has been the user's praise.

現(xiàn)主要產(chǎn)品：HH—01殺菌劑 HH—02有機(jī)分散劑HH—03陽(yáng)離子淀粉 HH—04木署陽(yáng)離子淀粉 HH—05 經(jīng)紗上漿變性淀粉同時(shí)還代理銷售德國(guó)貝克化學(xué)公司系列產(chǎn)品主要產(chǎn)品消泡劑：E640 、T50 表面施膠劑：A281免费91专区网站、A288 91精品福利观看、K532，農(nóng)藥/醫(yī)藥/獸藥中間體多種產(chǎn)品(對(duì)溴苯酚對(duì)溴甲苯溴仿 1-溴庚烷檸檬酸三乙酯 1九九国产黄色视频上传在线观看，2女人爽到高潮视频，3-三溴丙烷 3-氯-4-氟溴苯對(duì)溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1，6-二溴己烷 1-溴-4-硝基苯鄰甲氧基苯甲醛溴乙酸丙酯對(duì)氟甲苯溴代十二烷對(duì)碘甲苯四溴乙烷溴代叔丁烷檸檬酸三丁酯 2-溴氯苯間羥基苯甲醛溴丁烷 2-溴丙酸黎蘆醛溴已烷間溴三氟甲苯對(duì)溴苯腈對(duì)溴乙苯鄰溴甲苯溴代環(huán)已烷溴代環(huán)戊烷糠溴酸馬來(lái)酸二丁酯溴丙烯乳酸乙酯間溴苯胺間溴苯甲醚鄰氟苯酚鄰氟苯腈對(duì)氨基苯甲醛對(duì)溴苯胺對(duì)溴苯甲醛對(duì)溴苯甲酸)等在相關(guān)單位得到了大量推廣www.天天干.com，與客戶建立了良好的合作關(guān)系www26uu欧美，得到了用戶的贊譽(yù)。

In this dissertation, the liquid phase oxidant of p-nitrotoluene and 2,4-dimethylnitrobenzene with oxygen/air to aromatic acid was discussed.

論文研究了氧氣液相氧化對(duì)硝基甲苯黄色电影视频网址、2国产男女色黄大片，4-二甲基硝基苯制取對(duì)硝基苯甲酸、3-甲基-4-硝基苯甲酸的反應(yīng)播放在线你懂。

The oxidation of p-nitrotoluene-2-sulfonic acid to prepare 4, 4'-dinitrostilbene-2, 2'-disulfonic acid was monitored, and the mechanism for the formation of by-products 4-nitrobenzaldehyde-2-sulfonic acid and 4-nitro-2-sulfobenzonic acid was suggested.

跟蹤了對(duì)硝基甲苯鄰磺酸制備48X免费视频国产区，4'-二硝基二苯乙烯－2亚洲一区二区区，2'-二磺酸的過(guò)程，推測(cè)了4-硝基苯甲醛2-磺酸鈉與4-硝基苯甲酸2-磺酸鈉雜質(zhì)的生成機(jī)理又黄又大又硬又爽。

Can induce the reaction of cleavage H atom from methyl on the ring of deactivated toluenes,such as nitrotoluene. The carbanions caused by base are the very important reaction intermediums, which determined the reaction rate and reaction effect.

該反應(yīng)體系中国产啊v操妞操网站，NaOH的加入對(duì)此催化反應(yīng)起著相當(dāng)關(guān)鍵的作用，研究表明強(qiáng)堿也能像溫度一樣促進(jìn)苯環(huán)卜甲基的摘?dú)渌俣裙墒悠稻镁冒沟孜镄纬上鄳?yīng)的硝基苯甲基陰離子欧美一级A片a爱视频免费，穩(wěn)定的硝基苯甲基陰離子是氧化反應(yīng)進(jìn)行的重要中間體。

Four new compounds,substituted-benzyloxyindole-3-formaldehyde-(4′-nitro) phenylhydrazone ,were synthesized by the condensation of 4-nitrophenylhydrazine with substituted-benzyloxyindole-3-formaldehyde in ethanol.

以取代芐氧基吲哚-3-甲醛和4-硝基苯肼為原料538在线精彩视频，乙醇為溶劑色哟哟无码一区二区，通過(guò)縮合脫水反應(yīng)合成了4個(gè)新化合物——取代芐氧基吲哚-3-甲醛-(4′-硝基)苯腙，其結(jié)構(gòu)經(jīng)1H NMR欧美日韩另类精品重口综合手机，IR亚洲产在线精品亚洲第一站一，MS和元素分析表征。

We have synthesized 4,4'-dinitro-3 4''-dimethyl triphenylamine,(1), in 84% yield in an one-step condensation process between 3,4-dimethyl aniline and 4-fluoro-nitrobenzene. After the auto-oxidation of (1) and the subsequent hydrogenation of the nitro-groups, an AB2 type triphenylamine polyimide intermediate bearing two amine groups and one acid-anhydride group each on individual phenyl ring,{AB2 PI Intermediate}, was prepared successfully. The yields of the autoxidation and the hydrogenation steps are 81% and 90% respectively.

中文摘要本研究以3A片在线观看的免费网站无码，4-二甲苯胺及4-氟硝基苯為原料羞羞漫画官方在线观看，經(jīng)一步驟縮合反應(yīng)得到產(chǎn)率為84 %之4，4'-二硝基-3&国产一级A片免费观看网，4&-二甲基三苯胺(1)欧美视频在线观看aaaa，由(1)經(jīng)自氧化法后再以氫化法還原硝基，成功地制備出帶有二胺基與一羧基的三官能基之AB2型三苯胺中間體(AB2型PI中間體)www性爱区，自氧化反應(yīng)與氫化法的產(chǎn)率各為81%及90%95在线视频精品免费观看。