In chapter three, the activating agents of ytterbium have been examined. Barbier-type reaction promoted by ytterbium metal was examined. The experimental results shown that the yield of Barbier reaction of imines with allylic bromide promoted by ytterbium is higher than that of aldehydes and ketones with allylic bromide under the same reaction conditions. In this chapter, the reductive cleavage of Se-Se and S-S bond induced by ytterbium metal was also studied.

首先研究了金屬鐿的活化劑以及活化方法欧美zoo交，接著考察了金屬鐿促進(jìn)的Barbier反應(yīng)及其在合成高烯丙基胺和高烯丙基醇中的應(yīng)用H纯肉无遮挡3d动漫在线，以及影響該反應(yīng)的主要因素国产偷自区；究了金屬鐿促進(jìn)的二硫醚和二硒醚的S—S鍵和Se—Se鍵的還原斷裂国产乱伦视频一区二区，繼而與氯代烴99久久久码国产精品性，胺基甲酰氯反應(yīng)生成相應(yīng)的硫醚国产在线视频不卡，硒醚99超碰在线播放，胺基甲酸硫代酯和硒代酯日韩特黄一区二区。

The method comprises:(1) weighing lead acetate hexahydrate and thioacetamide, and preparing aqueous solutions respectively, so that the concentration ratio of Pd2+ to S is 1:(1-4);(2) adding acetic acid into thioacetamide solution to adjust the pH value to 2-4;(3) adding poly surfactant into lead acetate solution, ultrasonicating to mix uniformly and obtain a colorless and transparent sol;(4) mixing the sol and thioacetamide solution;(5) placing the mixed solution in a sealed container, irradiating by 2.5 MeV and 40 mA electron accelerator with irradiation dose of 25-40 Mrad;(6) washing the product, centrifuging for separation, and drying to obtain black PdS nanoparticles.

本發(fā)明方法的工藝過(guò)程如下：首先稱取一定量的六水合醋酸鉛和硫代乙酰胺，各自配制成水溶液欧美日韩在线日韩欧美，其濃度比為使其中的鉛離子濃度與硫原子濃度的比例為1∶1～1∶4卡通伦欧美有码亚洲；在硫代乙酰胺溶液中加入適量醋酸調(diào)節(jié)其pH值至2～4；醋酸鉛溶液中加入少量表面活性劑聚乙烯醇黄色外国男人叉外国女人日逼视频，然后超聲振蕩av片在线观看无码黄片，混合均勻，制成無(wú)色透明溶膠精品偷拍43p；隨后將溶膠與上述的硫代乙酰胺溶液混合久久www人成免费产片；將該混合液置于密閉容器中，并將其放置于2.5MeV黄色靓女网站、40mA的電子加速器產(chǎn)生的電子束輻照下進(jìn)行輻照處理亚洲国产精品无码久久，其輻照劑量為25～40Mrad；然后將反應(yīng)生成物清洗欧美黃色，并用高速離心機(jī)離心分離一级毛片无码不卡免费，然后干燥，最終得到黑色納米硫化鉛顆粒精品久久久久久无码中文版。

This thesis includes five parts as follows.1. The backgrounds and some relative concepts of this work are briefly introduced. The photochemistry of benzamides and compounds with thiourea functional group is also concisely reviewed.2. Total of fourteen benzamides with different substituted groups have been synthesized and structurally characterized. Better photoreaction time for that kind of compounds at given concentrations is confirmed by tracking its'UV spectrum and GC chromatogram. A representative dibenzophenone photoproduct has been determined by X-ray crystallography. The mechanisms of photoreaction of benzamide have been proposed.3. Total of seven N-chloro(phenylmethylenebenzenamines with different substituted groups and sixty-one thiourea derivatives have been synthesized and structurally characterized.

論文的主要內(nèi)容如下：1狼友无码、簡(jiǎn)要介紹本論文工作的研究背景，并對(duì)苯甲酰胺和具有硫脲官能團(tuán)類化合物的光化學(xué)研究進(jìn)展進(jìn)行簡(jiǎn)要的總結(jié)亚洲一区无码精品网站性色。2亚洲欧洲久久精品久久、合成與表征了14個(gè)具有不同取代基的苯甲酰胺類化合物，利用紫外光譜和氣相色譜確定了此類化合物較佳光照時(shí)間国产中的精品视频，測(cè)定了一個(gè)具有代表性光解產(chǎn)物的單晶結(jié)構(gòu)日韩亚洲免费，提出了苯甲酰胺類化合物的光反應(yīng)機(jī)理。3、合成與表征了7個(gè)帶有不同取代基的氯代苯甲酰亞胺中間體及61個(gè)硫脲衍生物欧美日韩精品视频一区二区在线播放，測(cè)定了兩個(gè)具有代表性化合物的單晶結(jié)構(gòu)欧美一级A片视频。

A series of 2-acetylformanilides were prepared,followed by thiolation with Lowesson reagent to afford 2-acetylthioformanilides,which further reacted with Mn3·2H2O in glacial acetic acid under microwave irradiation to afford 2-acetyl benzothiazole s.

合成了一系列的硫代酰胺，研究了它們?cè)谖⒉ㄝ椛浯姿徨i作用下發(fā)生氧化自由基環(huán)化反應(yīng)高清无码小视频，成功地合成了一系列2-乙?1精品啪在线观看国产蜜臀；讲⑧邕蜓苌铮浣Y(jié)構(gòu)經(jīng)紅外光譜www.黄在线观看、核磁共振譜和質(zhì)譜得到了證實(shí)

A new chelating fiber containing thioamide group is synthesized by cross-linking of polyacrylonitrile fiber with ethylene-dimine and following with chemical modification with sodium sulfide using DMF as solvent.

以腈綸纖維為起始原料国产精品视频二区第二页，經(jīng)乙二胺預(yù)交聯(lián)后，以DMF作溶劑與硫化鈉反應(yīng)6080新觉伦午夜视频免费，合成了一種硫代酰胺功能基可達(dá)6.8mmol/g干纖維的螯合功能纖維，其對(duì)貴金屬金一级免费一区二区精品尻逼大片、銀離子具有良好的吸附性能色色色色色色色资源。

Thioamide was refluxed with sodium hypophosphite and ppt-Ni prepared beforehand from NiCl〓·6H〓O and Zn powder in a mixture of dioxane and water to give amines in 60-98% yields (12 examples).

催化劑Ni-Zn是用氯化鎳和鋅粉反應(yīng)制成，為合金型固體粉末久久丁香五月丁中文精品，次磷酸鈉作為氫供體日韩乱伦第一页，對(duì)12種硫代酰胺進(jìn)行脫硫還原，收率60-98%国产精品久久一区二区三区影音先锋。

Diethylthiophosphoryl chloride was synthesized by reacting phosphorus thiochloride with anhydrous alcohol in the presence of NaOH, and then a novel phosphorus-nitrogen- and sulfur-containing flame retardant, 1, 4-di(O,O-diethyl thiophosphoryl imine) benzene, was synthesized via the reaction of diethylthiophosphoryl chloride with p-phenylenediamine.

以三氯硫磷與無(wú)水乙醇在NaOH存在下合成了二乙基硫代磷酰氯久久精品国产美女AV，然后再與對(duì)苯二胺反應(yīng)合成了新型的含磷、氮国产三级图片、硫的膨脹型阻燃劑：1操逼视频日本，4-二（O，O-二乙基硫代磷酰亞胺基）苯欧美男男作爱GayWWW。

All of the tripodal schiff base ligands and their complexes were characterized.

以三乙醇胺夜夜狠狠青草伊人中文字幕、巰基苯胺、巰基乙胺為初始原料黄片一区二区三级，設(shè)計(jì)合成了六個(gè)三腳架結(jié)構(gòu)的化合物飘花电影院午夜伦天堂，其合成路線如下：三乙醇胺與氯化亞砜反應(yīng)得到三(2-氯乙基)胺(1)，然后與巰基苯胺或巰基乙胺在堿性條件下反應(yīng)生成三腳架結(jié)構(gòu)的三{[2-(2-氨基苯基)硫代]乙基}胺(2)或三{[2-(2-氨基乙基)硫代]乙基}胺(3)91偷拍露脸老熟女合集，然后再與水楊醛又爽又色网站、2-甲酰基-8-羥基喹啉(8)欧美在线高清、2-甲跫で榱砝辔蘼耄基-8-芐氧基喹啉(7)反應(yīng)得到六種新型的含硫西佛堿化合

Tris-(1-aziridinyl)- phosphine oxide and 2-[bis-(2-chloroethyl)-amino]-tetrahydro-1, 3, 2-oxazaphospholidine-2-oxide(Ⅲ, B-518) possess inhibitory action against a variety of animal tumours and have been used clinically. Recently, bis-(1-aziridinyl)-phosphinyl carbamic acid ethyl ester(Ⅱ, AB-100) was found to possess significant activity with low toxicity on experimental animal tumours.

雙(2-氯乙基)氨基磷酰二氯與乙烯亞胺在脫水苯或?qū)ρ趿h(huán)中并在三乙胺的存在下進(jìn)行縮合，生成N午夜性生活黄色片，N-雙(2-氯乙基)-N′农村女人一级特黄大片，N-二乙烯基-磷酰胺；與雙巰基或雙氨基化合物作用，則生成相應(yīng)的環(huán)狀磷酰胺日韩专区欧美专区亚洲福利、磷酰胺酯以及磷酰胺硫代酯氮芥類化合物taoseav1。

Amine catalysts are used for preparation of thioamides by the addition reaction of nitriles with hydrogen sulfide.

在胺催化下，硫化氫和腈加成反應(yīng)生成硫代酰胺亚洲激情小说图片视频，其原子經(jīng)濟(jì)性為100%国产毛片一区二区精品，是一個(gè)綠色化學(xué)合成方法。