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久久WW黄色1级视品，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，以及影響該反應(yīng)的主要因素女人特黄大片视频；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18岁以下黄色网站，繼而與氯代烴，胺基甲酰氯反應(yīng)生成相應(yīng)的硫醚谁有可以直接看av的网站，硒醚在线观看黄A片免费AV网站，胺基甲酸硫代酯和硒代酯。

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欧美www在线观看，各自配制成水溶液怡红院老首页主页入口，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；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日韩丝袜清纯自拍视频在线观看；醋酸鉛溶液中加入少量表面活性劑聚乙烯醇亚洲欧美自拍另类日韩，然后超聲振蕩，混合均勻国产精品自拍一区在线播放，制成無(wú)色透明溶膠欧美性爱A√视频在线；隨后將溶膠與上述的硫代乙酰胺溶液混合；將該混合液置于密閉容器中av呦呦，并將其放置于2.5MeV欧美特黄岛国片免费看、40mA的電子加速器產(chǎn)生的電子束輻照下進(jìn)行輻照處理，其輻照劑量為25～40Mrad久久青草国产精品一区；然后將反應(yīng)生成物清洗免费黄色片999，并用高速離心機(jī)離心分離，然后干燥人人操人人干人人爱人人做，最終得到黑色納米硫化鉛顆粒在线无码观看黄片。

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、簡(jiǎn)要介紹本論文工作的研究背景一级大黄片欧美性爱，并對(duì)苯甲酰胺和具有硫脲官能團(tuán)類(lèi)化合物的光化學(xué)研究進(jìn)展進(jìn)行簡(jiǎn)要的總結(jié)全球持级黄毛片免费。2、合成與表征了14個(gè)具有不同取代基的苯甲酰胺類(lèi)化合物一级夫妻生活a片在线观看，利用紫外光譜和氣相色譜確定了此類(lèi)化合物較佳光照時(shí)間久久精品免费福利网，測(cè)定了一個(gè)具有代表性光解產(chǎn)物的單晶結(jié)構(gòu)，提出了苯甲酰胺類(lèi)化合物的光反應(yīng)機(jī)理大家操大家日超碰。3福利视频免费、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，測(cè)定了兩個(gè)具有代表性化合物的單晶結(jié)構(gòu)久久精品视频大全。

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手噜国产，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)99这里只有精品99，成功地合成了一系列2-乙酰基苯并噻唑衍生物精品国产污污的网站，其結(jié)構(gòu)經(jīng)紅外光譜,一级不卡黄色视频免费观看、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，經(jīng)乙二胺預(yù)交聯(lián)后男女赤裸裸插鸡视频在线观看，以DMF作溶劑與硫化鈉反應(yīng)91色国产在线，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)貴金屬金欧美动图、銀離子具有良好的吸附性能日韩AV无码超碰一区二区三区。

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，為合金型固體粉末肏屄在线观看国内，次磷酸鈉作為氫供體6080免费三级片，對(duì)12種硫代酰胺進(jìn)行脫硫還原，收率60-98%猛操视频。

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伊人中文字幕色综合，然后再與對(duì)苯二胺反應(yīng)合成了新型的含磷、氮免费黄图视频、硫的膨脹型阻燃劑：1国产精品三级啪啪，4-二（O，O-二乙基硫代磷酰亞胺基）苯青草青草久热精品视频不卡。

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

以三乙醇胺欧美日韩黄色小说小电影网、巰基苯胺、巰基乙胺為初始原料综合亚洲伊人午夜网，設(shè)計(jì)合成了六個(gè)三腳架結(jié)構(gòu)的化合物干人网站，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)亚洲综合色色色，然后再與水楊醛久久avabb、2-甲酰基-8-羥基喹啉(8)一级片久久、2-甲趺蘼胛缫构悠担基-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性大片免费看，N-雙(2-氯乙基)-N′在线中文字幕日本，N-二乙烯基-磷酰胺；與雙巰基或雙氨基化合物作用日本爆乳视频，則生成相應(yīng)的環(huán)狀磷酰胺尤物在线观看视频、磷酰胺酯以及磷酰胺硫代酯氮芥類(lèi)化合物。

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)生成硫代酰胺日韩夜色精品影院视频，其原子經(jīng)濟(jì)性為100%九九一级黄色视频，是一個(gè)綠色化學(xué)合成方法国产丝袜在线观看视频黄。

alcohol：醇

目的:觀察茶多酚對(duì)四氯化碳(CCl4),硫代乙酰胺(TAA),醋氨酚(AAP),氯化鎘(CdCl2),乙醇(alcohol),dl-乙硫氨酸(dl-E)等肝毒物所致小鼠肝損傷的影響. 方法:預(yù)先給小鼠ig茶多酚后再給肝毒物,檢測(cè)血清谷丙轉(zhuǎn)氨酶(ALT)活力和肝臟甘油三酯(TG)含量,

thioaldehyde：乙硫醛

thioalcohol 硫醇 | thioaldehyde 乙硫醛 | thioamide 硫代酰胺

trypsin：胰蛋白酶

24 cm)等均為Amersham Biosciences產(chǎn)品; 過(guò)硫酸銨、 丙烯酰胺伊人草在线视频、甲*雙丙烯酰胺日本色一区二区三区、 甘氨酸、 硫代硫酸鈉欧美激情第欧美精品、 碳酸氫銨乱伦亚洲色图片、 鐵氰化鉀、 三氟乙酸及乙腈等為Sigma-Aldrich公司產(chǎn)品; 胰蛋白酶(Trypsin)為Promega公司產(chǎn)品;

dibenzyl disulfide：二芐二硫

dibenzoyl 聯(lián)苯酰 | dibenzyl disulfide 二芐二硫 | dibenzyl dithiooxamide 二芐基二硫代草酰胺

thioacetal：硫縮醛

thio acid 硫代酸 | thioacetal 硫縮醛 | thioacetamide 硫代乙酰胺

thioamide：硫代酰胺

thioaldehyde 乙硫醛 | thioamide 硫代酰胺 | thiocarbamide 硫脲

TC; TCA thiocarbanilide：硫代磺酰胺[促進(jìn)劑]

Terylene warp and cotton weft特麗綸經(jīng)線棉緯線 | TC; TCA thiocarbanilide硫代磺酰胺[促進(jìn)劑] | T.C. thermocouple熱電偶

TCP thiocarbonyl perchloride：硫代炭酰過(guò)氯化物[防焦劑]

TCM trichloromelamine三氯三聚氰酰胺[乙丙膠硫化劑] | TCP thiocarbonyl perchloride硫代炭酰過(guò)氯化物[防焦劑] | tricresyl phosphate磷酸三甲苯酯[增塑劑]

thionic acid：連硫酸,硫逐酸,硫羰酸

thiomalic acid 硫代蘋(píng)果酸 | thionic acid 連硫酸,硫逐酸,硫羰酸 | thionyl amines 亞硫酰胺

captan：商N(yùn)-三氯代甲基硫四氫化鄰苯二酰亞胺殺菌18岁禁看网站在线看、防霉劑

Capsanthin 辣椒紅辣椒質(zhì) | Captan 商N(yùn)-三氯代甲基硫四氫化鄰苯二酰亞胺殺菌欧美在线黄片小视频、防霉劑 | Captan 商N(yùn)-三氯代甲基硫四氫化鄰苯二酰亞胺殺菌、防霉劑