硫

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%.

采用类似的缚酸剂体系成功地合成了硫代磷酸三(4-硝基苯)酯、硫代磷酸三(4-甲基苯)酯，并用简单的方法合成了硫代磷酸三(4-氨基苯)酯的马来酸酐衍生物——硫代磷酸三(4-马来酸氨基苯)酯，产率达90％以上。

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，对硫分的要求也是不同的；同时，煤中不同的硫分，脱除方法也是不相同的，无机硫的大部分可用传统的洗选技术和方法脱除，但有机硫就很难用传统的洗选技术和方法脱除了。

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.

正是基于以上考虑，本论文探索了合成下沿带有硫醚官能团，而上沿带有偶氮官能团的杯[4]芳烃衍生物的方法，进行了以下研究： 1采用ω-溴代羧酸和烃基硫醇在碱性条件下发生反应，或由ω-烯基羧酸和硫醇在AIBN的存在下反应，得到了ω-硫醚羧酸，使用氯化亚砜将羧酸转化为酰氯。

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.

在分析硫铝酸盐水泥应用现状及存在问题的基础上，提出了高硅贝利特-硫铝酸盐水泥与矿渣复合，能够进一步完善硫铝酸盐水泥的性能及扩大硫铝酸盐水泥的应用范围。

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。缺硫除了对小麦生长和产量有影响，籽粒偏向于合成和积累贫硫或低硫贮存蛋白，如ω-醇溶蛋白和高分子量谷蛋白亚基，而蛋白质组成的变化与面团流变学特性改变有关，大田条件下增施硫肥显著改善了面包品质。

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′-(1，3，4-噻二唑-2，5-二硫基)二乙酸、2，2′-邻苯二甲硫基二乙酸和2，2′-间苯二甲硫基二乙酸三个含硫二元羧酸配体。

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 研究了二碘化钐、金属钐促进的有机反应：1、二碘化钐促进下α，β-炔基酮的偶联环化反应，提供了一种制备多取代环戊二烯的新方法；2、二碘化钐促进下的二硫醚、二硒醚与α，β-炔基酮的Michael加成反应，为高产率地制备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；3、二碘化钐促进下的二硫醚、二硒醚与α，β-炔基酮和醛、酮的Michael—aldol串联反应，提供了一种一锅法高产率地制备多取代的含硫的烯丙基醇或含硒的烯丙基醇类化合物的方便可靠的原子经济性的新方法；4、烯丙基溴化钐与α，β-炔基酮的高度区域选择性的1，2-亲核加成反应；5、NiCl〓/PPh〓/Sm〓促进的卤代芳烃的偶联反应-一种从各种卤代芳烃制备联苯类化合物的有效方法。

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.

将自制合成的三种新型硫脲型螫合纤维素——硫晚棉纤维，氨基硫脲棉纤维和二苯硫脲棉纤维应用于钢的吸附性能的研究，采用火焰原子吸收法测定选择了吸附和解吸的最佳条件。

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.

经探讨后，以含水量40%之薏仁於30 ℃下培养17天后之麦角硫因量最高，可达574.0 mg/kg dw，再添加酵母萃取物为氮源可提高麦角硫因到824.8 mg/kg dw，生物质为139.0 mg/g dw；以含水量45%之荞麦於30 ℃下培养17天后之麦角硫因含量最高，可达580.6 mg/kg dw，生物质为163.4 mg/g dw，添加酵母萃取物为氮源，麦角硫因含量可达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.

在乙硫氮存在时，从0.35V开始乙硫氮与脆硫锑铅矿相互作用明显，电位增加到0.75V附近存在明显的氧化峰，试验结果表明在脆硫锑铅矿表面有PbD2、SbOD形成产生。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。