对甲苯磺酰氯合成新工艺

本文报道了以甲苯为起始原料,与硫酸反应合成对甲苯磺酸,进而与氯磺酸进行酰氯化反应合成对甲苯磺酰氯的新工艺。该工艺与传统工艺相比,具有收率高,含量高,选择性高,成本低等优点,具有广阔的工业前景。     

新型磺酰类醛糖还原酶抑制剂的合成及活性研究

以2,4-二甲苯胺为原料,设计并合成了一系列环外磺酰胺(酯)类衍生物,对目标化合物的醛糖还原酶(ALR2)抑制活性进行了测定,并利用分子对接方法研究了抑制剂与醛糖还原酶蛋白的结合模式. 结果显示环外磺酰类化合物8a-d, 12a-b, 16a-b具有良好的体外醛糖还原酶抑制活性,分子模拟预测其能与酶蛋白的活性位点空腔较好结合. 化合物8a-d是一类新型醛糖还原酶抑制剂,活性良好,并可作为先导化合物探索活性更高的醛糖还原酶抑制剂.      

双十二醇磺酰亚胺盐合成与表面活性

用双氯磺酰亚胺 (BCSA)与十二醇作用合成了双十二醇磺酰亚胺 (BDSA) .在BCSA与十二醇的摩尔比为 1∶2 ,反应温度 5 0～ 6 0℃ ,反应时间 2h条件下 ,对BCSA的摩尔收率m达 88.6 % .用NaOH ,KOH和NH3中和BDSA制得BDSA的三种盐 ,三种盐对BDSA的摩尔收率均达 96 % ,用IR ,1HNMR对BDSA及其盐的结构进行了确证 .用电导率法、表面张力法测得三种盐的临界胶束浓度cCMC值均达 1× 10 4 mol/L .结果表明BDSA盐具有较高的表面活性 .     

苄基锡芳硫(亚砜、砜)乙酸酯的合成及光谱性质

合成了11种三苄基锡芳硫(亚砜、砜)乙酸酯。通过元素分析、IR、1H NMR、等手段对其结构进行了表征。     

双全氟十二醇磺酰亚胺盐合成与表面活性

用双氯磺酰亚胺 (BCSA)与 1,1 二氢全氟十二醇作用合成了双全氟十二醇磺酰亚胺 (BPSA) .在BCSA与全氟十二醇的摩尔比为 1∶2 ,反应温度 110℃ ,反应时间 1h条件下 ,对BCSA的摩尔收率m达到 90 % .用NH3 中和BPSA制得BPSA胺盐 ,BPSA胺盐对BPSA的摩尔收率m达 86 .6 % ,用IR ,1HNMR对BPSA及其胺盐的结构进行了确证 .用电导率法、表面张力法测得BPSA胺盐的临界胶束浓度cCMC达 1.1× 10 -4 mol/L .结果表明BPSA胺盐具有较高的表面活性     

萘酚磺酸类偶氮化合物酰氯化研究

以萘酚磺酸类偶氮化合物酸性橙7为原料,氯化亚砜为酰氯化试剂,N,N-二甲基甲酰胺(DMF)为催化剂,合成重要的染料中间体磺酰氯化合物.选择不同极性试剂作为酰氯化反应的溶剂,考查了不同溶剂对酰氯化收率和选择性的影响.并探讨了DMF在反应体系中的作用以及酰氯化反应的机理;其中以苯、甲苯和氯化亚砜作溶剂,反应选择性好,收率均高于89%.此外,鉴于磺酰氯在质谱与核磁分析中的不稳定性,以稳定的磺酰胺分析代替直接的磺酰氯分析,间接地证明了磺酰氯的分子结构.     

对硝基苯磺酰基乙酸酯的二烷基化反应

对硝基苯磺酰基乙酸酯(1_a-e)在固-液相转移催化条件下,可以进行烷基化反应生成二烷基化产物.1_a-e 中苯环上的硝基使反应活性增加,多种类型的烷基化试剂,如溴乙烷,溴丙烯和氯苄均可与其反应得到烷基化产物。本文中合成了18种二烷基化产物,4-O_2NC_6H_4SO_2CR~1R~2CO_2R(2a-i,3a-i)。方法的优点是反应条件温和,产率高(88-98％)。     

十二烷基苯磺酰叠氮的合成

以十二烷基苯磺酸为原料、氯化亚砜为酰化剂,先合成中间产物十二烷基苯磺酰氯,然后合成目标产物十二烷基苯磺酰叠氮。实验结果表明,合适的反应条件为：n（氯化亚砜）︰n（十二烷基苯磺酸）=1.2︰1,反应温度50℃,反应时间5h,产品收率达85%,产品纯度大于90%。     

聚多氟烷氧基磺酰亚胺锂盐的合成及性能研究

利用HN (SO2 Cl) 2 和不同的含氟二醇 ,合成了 6个新的聚多氟烷氧基磺酰亚胺锂盐 ,并用IR ,1HNMR ,19FNMR等进行了结构表征 .经GPC测定出这些多氟聚合物的重均相对分子质量为 1 2 0 0～ 4 90 0 ,聚合度为n =4～ 9.用DSC研究表明 ,这些聚合物锂盐具有很好的热稳定性 .电化学研究表明 ,它们在有机溶剂中的导电性能和阳极抗氧化性能均十分优越 .     

碳酸氢铵生产母液中烷基磺酰氯测定──混合指示剂两相滴定法

建立了应用百里酚兰（Ｔ．Ｂ）──亚甲基兰（Ｍ．Ｂ）混合指示剂测定碳酸氢铵母液中的烷基磺酰氯（活性物）含量的新方法，通过加入过氧化氢排除了硫化物干扰，方法的回收率９６％～１０３％，对实际样品测定相对标准偏差（Ｒ．Ｓ．Ｄ）≤３．３％。     

由十二烷基苯磺酰氯制备两亲性聚合物

以十二烷基苯磺酰氯为引发剂、氯化亚铜（CuCl）/2,2'-联吡啶为催化剂进行了甲基丙烯酸甲酯（MMA）的原子转移自由基聚合,结果表明聚合为活性自由基聚合过程。在此基础上,进行了甲基丙烯酸叔丁酯（t-BMA）的原子转移自由基聚合,得到了窄分子量分布的聚合物,并且引发剂的引发效率较高。将所得聚甲基丙烯酸叔丁酯水解,得到了以十二烷基苯基为疏水端、甲基丙烯酸链段为亲水端的两亲性聚合物。该聚合物具有表面活性,可以明显降低水的表面张力。     

荧光性二氯苯腈类除草剂的合成与性能(英文)

用 ３硝基２,６二氯苯腈（ Ｎ Ｄ Ｃ Ｂ）经 Ｓｎ Ｃｌ２ 还原得到的产物 ３氨基２,６二氯苯腈（ Ａ Ｄ Ｃ Ｂ）与磺酰氯反应合成了一种具有生理活性的化合物 ５ Ｎ, Ｎ二甲氨基萘磺酰（３腈基２,４二氯）苯胺（ Ｄ Ｃ Ｂ Ｆ）,研究了其对 Ａ． ｌｏｎｇｉｐｅｓ的细胞外基体聚糖的合成的抑制作用,发现此化合物具有与其母体 Ｄ Ｃ Ｂ 类似的功效．     

盐酸兰地洛尔原料药中3-[4-(3-硝基苯磺酰氧基)苯基]丙酸的检测方法学研究

为了检测并控制合成盐酸兰地洛尔原料药物的质量,依托高效液相色谱-三重串联四级杆质谱建立了一种测定其中痕量基因毒性杂质3-[4-(3-硝基苯磺酰氧基)苯基]丙酸的方法。方法采用多级反应监测模式,检测灵敏度可达到0.50 mg/kg,加标回收率在91.9%~97.8%之间,且精密度的相对标准偏差为3.28%(n=6),均能满足杂质检测的需要。该研究方法操作简单、结果可靠,可实现快速、低成本检测。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.