Besides, the derivatives were synthesized successfully by the similar acid binding agent system, such as tris(4-nitrophenyl) thiophosphate, tris(4-toluene)thiophosphate. The derivative of maleic anhydride was synthesized by the simple method, and its yield was above 90%.

采用類似的縛酸劑體系成功地合成了硫代磷酸三(4-硝基苯)酯“超碰中文在线”、硫代磷酸三(4-甲基苯)酯伊人久久久久亚洲色综网，并用簡單的方法合成了硫代磷酸三(4-氨基苯)酯的馬來酸酐衍生物——硫代磷酸三(4-馬來酸氨基苯)酯，產(chǎn)率達(dá)90％以上在线国产视频网欧洲。

The average sulfur content of 11 # is 3.99%, and the organic shlfur is 55%～90% of its total sulfur. The correlation relations between the sulfur and coal ash, as weel as geneses of sulfur in the coal seam are studied too.

煤的用途不同国产精品九，對(duì)硫分的要求也是不同的国产免费观看下载AV大片的网站；同時(shí)，煤中不同的硫分男人网站天堂，脫除方法也是不相同的求一个免费在线观看的黄色网站，無機(jī)硫的大部分可用傳統(tǒng)的洗選技術(shù)和方法脫除，但有機(jī)硫就很難用傳統(tǒng)的洗選技術(shù)和方法脫除了日韩视频在线国产。

1A series ofω-alkylmercapo acid were synthesized by two methods:one involved the reaction of the appropriateω-bromoalkyl acid with mercaptide under the presence of base;the other method was used only for the long alkyl compound by the reaction ofω-alkenyl acid and alkanethiol in the presence of AIBN.

正是基于以上考慮尤物视频入口，本論文探索了合成下沿帶有硫醚官能團(tuán)，而上沿帶有偶氮官能團(tuán)的杯[4]芳烴衍生物的方法性欧美日本，進(jìn)行了以下研究： 1采用ω-溴代羧酸和烴基硫醇在堿性條件下發(fā)生反應(yīng)人人妻人人添人人爽欧美一区91，或由ω-烯基羧酸和硫醇在AIBN的存在下反應(yīng)，得到了ω-硫醚羧酸免费黄色欧美，使用氯化亞砜將羧酸轉(zhuǎn)化為酰氯国产精品H在线播放第一页。

Basic experiments prove the possibility of composite of high silica belite aluminosulphate cement and blastfurnace slag , and at the same time discusses the composite mechanism.

在分析硫鋁酸鹽水泥應(yīng)用現(xiàn)狀及存在問題的基礎(chǔ)上，提出了高硅貝利特-硫鋁酸鹽水泥與礦渣復(fù)合久久是出精品，能夠進(jìn)一步完善硫鋁酸鹽水泥的性能及擴(kuò)大硫鋁酸鹽水泥的應(yīng)用范圍人人射人人操人人骑人人插。

Apart from the clear effects on crop growth and grain yield, limiting availability of S has been shown to favour the synthesis and accumulation of S-poor or low-S storage proteins such as ω-gliadin and high molecular weight subunits of glutenin at the expense of S-rich proteins. These changes in protein composition are associated with alterations of dough rheology. Significant responses of breadmaking quality to the addition of S fertilisers have been observed under field conditions.

hm^(-2)左右。缺硫除了對(duì)小麥生長和產(chǎn)量有影響91人妻久久久精品99系列，籽粒偏向于合成和積累貧硫或低硫貯存蛋白无码免费A片久久，如ω-醇溶蛋白和高分子量谷蛋白亞基，而蛋白質(zhì)組成的變化與面團(tuán)流變學(xué)特性改變有關(guān)激情文学综合区图片区小说区，大田條件下增施硫肥顯著改善了面包品質(zhì)亚州美日韩一区二区三区。

Inthis papor,we synthesize and symbolize three sulphide bicarboxylate ligands such as 2.5-bis-1.3,4-thiadiazole;2,2 -(o-phenylenedimethylenethio) diacetic acid(L11); 2,2 -(m-phenylenedimethylenethio) diacetic acid.

本文合成和表征了2，2′-(1乱伦强奸欧美，3在线看的a片，4-噻二唑-2，5-二硫基)二乙酸黄色视频制服网站、2桃花在线观看国产电影，2′-鄰苯二甲硫基二乙酸和2，2′-間苯二甲硫基二乙酸三個(gè)含硫二元羧酸配體国产欧美日韩另类一区。

The chapter two was focused on the samarium diiodide promoted organic reactions and their applications in organic synthesis, firstly, a new synthesis of highly substituted cyclopentadienes from a,β-alkynone promoted by samarium diiodide was investigated and the highly substituted cyclopentadienes were prepared in moderate to good yields under mild conditions. Secondly, the Michael addition and Michael-aldol tandem reaction of diorganyl diselenides or diorganyl disulfides with α,β-alkynones mediated by samarium diiodide were studied and a series of alkenylsulfides and alkenylselenides were prepared in good yields. Then the highly regioselecfive nucleophilic addition of the allylsamarium bromide to α,β-alkynones were explored. We found that the allylsamarium bromide reacts with α,β-alkynones to afford regiospecificly 1. 2-nucleophilic addition products in good yields under mild condition. At last we studied the coupling reaction of aryl halides promoted by NiCl〓/PPh〓/Sm〓.

第二章 研究了二碘化釤99色精品视频、金屬釤促進(jìn)的有機(jī)反應(yīng)：1、二碘化釤促進(jìn)下α成品网站黄色网站高清，β-炔基酮的偶聯(lián)環(huán)化反應(yīng)精品视频一区二区在线导航，提供了一種制備多取代環(huán)戊二烯的新方法；2麻豆AV免费看、二碘化釤促進(jìn)下的二硫醚欧美性爱做、二硒醚與α，β-炔基酮的Michael加成反應(yīng)，為高產(chǎn)率地制備多取代的烯基硫或烯基硒化合物提供了方便可靠的新方法亚洲黄色一级a片；3日韩系列在线精品视频观看网站大全、二碘化釤促進(jìn)下的二硫醚、二硒醚與α国产国产精品偷在线观看，β-炔基酮和醛国产区精品系列一区二区、酮的Michael—aldol串聯(lián)反應(yīng)，提供了一種一鍋法高產(chǎn)率地制備多取代的含硫的烯丙基醇或含硒的烯丙基醇類化合物的方便可靠的原子經(jīng)濟(jì)性的新方法Aa一级片公司室；4国产精品俺来也在线观看了、烯丙基溴化釤與α，β-炔基酮的高度區(qū)域選擇性的1色欲天天影院视频，2-親核加成反應(yīng)国产亚洲精品国产91；5、NiCl〓/PPh〓/Sm〓促進(jìn)的鹵代芳烴的偶聯(lián)反應(yīng)-一種從各種鹵代芳烴制備聯(lián)苯類化合物的有效方法性视频亚洲网站。

Three new kinds of thiourea - type chelating cotton cellulose, thiourea cellulose, thiosemicarbazide cellulose and diphenylthiourea cellulose, were synthesized in our Lab, and their absorptive characteristics for copper was investigated.

將自制合成的三種新型硫脲型螫合纖維素——硫晚棉纖維黄片免费一级，氨基硫脲棉纖維和二苯硫脲棉纖維應(yīng)用于鋼的吸附性能的研究，采用火焰原子吸收法測(cè)定選擇了吸附和解吸的最佳條件国内外激情在线视频频。

Results showed that optimal conditions for high content of ergothioneine were moisture content at 40%, temperature at 30℃and polished adlay as medium, cubation 17 days (574.0 mg/kg dw), biomass was 139.0 mg/g dw.

經(jīng)探討后欧美日韩免费粉嫩人妻视频专区，以含水量40%之薏仁於30 ℃下培養(yǎng)17天后之麥角硫因量最高亚洲综合色图小说，可達(dá)574.0 mg/kg dw欧洲性网站，再添加酵母萃取物為氮源可提高麥角硫因到824.8 mg/kg dw，生物質(zhì)為139.0 mg/g dw性欧美XXXX18HD视频；以含水量45%之蕎麥於30 ℃下培養(yǎng)17天后之麥角硫因含量最高1000部国产怕怕怕精品，可達(dá)580.6 mg/kg dw，生物質(zhì)為163.4 mg/g dw日韩精品美女网页在线观看免费，添加酵母萃取物為氮源五月天色色综合网，麥角硫因含量可達(dá)651.6 mg/kg dw。

When the potential increased to about 0.75V, there is obvious oxidation peak. The test results show that there are PbD2 and SbOD formed on the surface of jamesonite.

在乙硫氮存在時(shí)干天天干，從0.35V開始乙硫氮與脆硫銻鉛礦相互作用明顯玩弄少妇视频在线播放，電位增加到0.75V附近存在明顯的氧化峰，試驗(yàn)結(jié)果表明在脆硫銻鉛礦表面有PbD2啪啪啪精品、SbOD形成產(chǎn)生7160无码视频在线观看。