期刊专题

《化学通报》网络版(Chemistry Online)2001年5月论文摘要

引用
引用方法:作者(多位作者间以逗号隔开).题目.化学通报,年,卷:W×××(×××为网络版目次中序号的后三位).[W01043] 多对强反应电解质形成的多移动化学反应界面研究Multi-moving Chemical Reaction Boundaries Formed by Multi-pairs of Strong Reaction Electrolytes周天承 (芜湖职业技术学院轻化系 安徽芜湖 241001)  文章推导出了由多对强反应电解质形成的多移动化学反应界面方程(MMCRBE:S),通过与移动化学反应界面方程(MBE)的比较以及对由Co2+、Cu2+与OH-或Br-、Cl-与Ag+形成的二个移动化学反应界面的实验研究,证实MMCRBE:S是正确的方程。该方程是对移动化学反应界面理论的推广,适用于多种离子的分离研究。  In this paper, the equations of multi-moving chemical reaction boundaries (MMCRBE:S) formed by multi-pairs of strong reaction electrolytes are derived. It has been confirmed by the comparison of the equations of moving chemical reaction boundary (MBE) and with the experimental investigations of the two moving chemical reaction boundaries formed by Co2+, Cu2+ and OH- or Br-, Cl- and Ag+. The MMCRBE:S is the development of the theory of MBE and can be used for the study of multi ionic species separation.[W01044] 马来海松酸三缩水甘油酯的合成The Synthesis of Maleopimaric Acid Triglycidyl Ester沈敏敏 哈成勇* 刘治猛# (中国科学院广州化学研究所 广州 510650  #东莞理工学院 东莞 523106)  以马来海松酸为原料经开环酯化和闭环等步骤合成出马来海松酸三缩水甘油酯, 经核磁、质谱、红外光谱证实是目标产物。研究了催化剂种类、碱浓度、闭环温度和时间等对反应的影响,得到适宜的反应条件。  The maleopimaric acid triglycidyl ester is synthesized and its structure is characterized by 13C NMR 、1H NMR 、MS and IR. The influences of different catalysts, the concentration of sodium hydroxide, reaction temperature and time are investigated. The optimum conditions of the reaction are presented.[W01045] 乙酰邻苯二甲酰亚氨基半乳糖端基乙酰基脱除的新方法A Novel Method for Anomeric Deacetylation of β-D-Tetra-O-acetyl-phthalimido-galactopyranose高拥军 李 庆 蔡孟深 李中军* (北京大学药学院化学生物学系天然药物与仿生药物国家重点实验室 北京 100083)  本文首次使用苄胺作为弱碱选择性脱除四乙酰邻苯二甲酰亚氨基半乳糖的端基乙酰基。本法将1.7∶1.0(摩尔比)的苄胺与1,3,4,6-四-O-乙酰基-2-脱氧-2-邻苯二甲酰亚氨基-β-D-吡喃半乳糖(2)溶于THF中, 室温搅拌24h, 目标产物收率82%。  First use of benzylamine as a mild and efficient reagent for removal of the anomeric acetyl group of 1,3,4,6-tetra-O-acetyl-2-deoxy-2-phthalimido-β-D-galactopyranose(2) is described. Treatment of 2 with an excess of benzylamine in anhydrous THF at room temperature for 24h gave 3,4,6-tetra-O-acetyl-2-deoxy-2-phthalimido-β-D-galactopyranose with the yield of more than 80%.  [W01046] 三链核酸稳定性的阳离子效应研究进展The Effects of Cations on the Stability of Triple Helix Nucleic Acid邬瑞光 尉志武* 周 蕊 (清华大学化学系生命有机磷化学教育部重点实验室 北京 100084)  三链DNA的稳定性是其研究领域的热点之一,而阳离子效应又是影响这一稳定性的重要因素。本文总结了近年来这方面工作的实验方法和结论,并讨论了目前还存在的需进一步研究的问题。  The effect of cations on the stability of triple helix DNA is of importance in the understanding of its structure-function relationship. Both experimental methods and latest findings concerning the stability of triple helix DNA are summarized. In the context of discussions of remaining problems, suggestions for further investigations are also made.[W01047] 超声波作用下的溶液结晶过程Effect of Ultrasonic Waves on Crystallization in Solution王 莅 祝翠红# 米镇涛 (天津大学化工学院 天津 300072  #天津药业股份有限公司 天津 300161)  本文引用功率超声在结晶过程中的应用实例,较为详细地介绍了超声空化效应对结晶产品粒度、粒度分布、操作时间和成核过程的影响。  In this paper, examples are quoted from appliances where power ultrasound has been used for the crystallization in solution. The effects of ultrasonic cavitation on particle sizes, particle size distribution and nucleation are described in detail.[W01048] 乙烯齐聚制备α-烯烃的催化剂研究进展Recent Progress in Catalysts for Ethylene Oligomerization阎卫东 王天凤# 姜 涛# 刘立新# 吴殿义 (河北工业大学化工学院高分子科学与工程研究所 天津 300130  #大庆石油学院石油化工系 黑龙江安达 151400)  综述了用于乙烯齐聚合成α-烯烃的镍系、铁系、铬系和锆系催化剂的国内外最新研究进展。比较了这些催化剂的性能。对铁系、锆系催化剂的配体结构与其催化剂性能的关系进行了一定的说明。  Recent progress in the catalysts based on Ni, Fe, Cr and Zr systems for ethylene oligomerization was reviewed in this paper. The performances of the catalysts were compared. The relations of the structure of some catalysts with their performances were illustrated as well.[W01049] 蒙脱土负载Me2Si(Ind)2ZrCl2原位插层聚合制备蒙脱土纳米复合聚乙烯材料Prepared Polyethylene-Montmorillonite Composite by Using Catalyst of Me2Si(Ind)2ZrCl2 Supported on Montmorillonite柳忠阳 徐德民 贾 明 贺大为 胡友良* (中国科学院化学研究所分子科学中心工程塑料国家重点实验室 北京 100080)  本文以H-蒙脱土负载MeSi(Ind)2ZrCl2/MAO为乙烯常压均聚催化剂, 成功地原位聚合制备了纳米蒙脱土聚乙烯复合材料, 并对聚合过程中催化性能和蒙脱土纳米分散行为进行了研究。  Me2Si(Ind)2ZrCl2 supported between the layers of montmorillonite by reaction of MAO with hydroxyl groups of montmorillonite and then Me2Si(Ind)2ZrCl2 reaction with MAO on carrier. It is found that it has high activity on the ratio of MAO and AlEt3 about 1 as its cocatalysts. The supported catalyst was dispersed into nano-scale.[W01050] 黄樟素衍生物应用研究进展Progress in the Application Researches of Sapole Derivatives申东升 (湘潭大学化学化工学院 湖南湘潭 411105)  黄樟素是一种重要的精细化工原料,是我国的重要出口精油之一。本文依据大量的参考文献,系统地综述了以黄樟素为基本原料,合成了几十种高附加值精细化工产品,并按香料、医药和农药增效剂等三个方面分别予以讨论。同时指出国内应加强以黄樟素为原料的精细化工产品的研究开发。  Safrole is an important chemical material used for exportation. This paper systematically described a variety of pine chemicals derived from rafrole with high addition value and separately discussed their applications in the fields of perfume, drug and synergists for agriculture pesticide, etc. Meanwhile, the paper also emphasized that the utilization and exploitation of safrole should be strengthened in our country.[W01051] 聚合物光纤的研究及其应用The Research and Application of Polymer Optical Fiber戴新华 张小莉 韩布兴 徐 坚* (中国科学院化学研究所分子科学中心高分子物理和化学国家重点实验室 北京 100080)  本文描述了聚合物光纤的发展、制备技术及其基本参数的测试方法,并给出了聚合物光纤的各种应用。  The development of polymer optical fiber (POF) has been reviewed in this paper. The preparation and the measurement methods of optical parameter as well as the application of POF are briefly introduced.[W01052] 煤中微量污染元素研究进展Advance of Researching on Harmful Trace Elements in Coal吕海亮 李 文 李保庆 (中国科学院山西煤炭化学研究所煤转化国家重点实验室 太原 030001)  从赋存形态、定性和定量检测方法及在煤转化过程中的变迁规律三个方面,介绍了对煤中微量污染元素的研究状况,并建议了今后的一些研究方向。  The studies on harmful trace elements in coal, including the mode of occurrence, the methods of qualitative and quantitative analysis, and the transformation of trace elements in coal conversion were reviewed. The research field in the future about harmful trace elements in coal was also suggested.[W01053] N-(5-烷基-1,3,4-噻二唑-2-基)-N′-(2′,3′,4′,6′-四-O-乙酰基-β-D-吡喃葡萄糖基)硫脲的合成Synthesis of N-(5-alkyl-1,3,4-thiadiazol-2-yl)- N′-(2′,3′,4′,6′tetra-O-acetyl-β-D-glucopyranosyl) thiacarbamides李 明 文丽荣 杨丰科 李国强 张书圣 (青岛化工学院应用化学系 青岛 266042)  本文通过2,3,4,6-四-O-乙酰基-β-D-吡喃葡萄糖异硫氰酸酯与2-氨基-5-烷基-1,3,4-噻二唑反应,合成了五种新的N-(5-烷基-1,3,4-噻二唑-2-基)-N′-(2′,3′,4′,6′-四-O-乙酰基-β-D-吡喃葡萄糖基)硫脲类化合物。经元素分析,IR,1H NMR,MS分析证明产物为β-型。  The reaction of 2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl isothiocyanate(II)with 2-amino-5-alkyl-1,3,4-thiadiazoles(III)gives five new compounds of N-(5-alkyl-1,3,4-thiadiazol-2-yl)-N′-(2′,3′,4′,6′-tetra-O-acetyl-β-D-glucopyranosyl)thiacarbamides(IV)whose structures have been characterized by elemental analysis,IR,1H NMR and FAB-MS. Those products are of β-configuration.  [W01054] 绘制化学结构式方法的新进展--ACD/Chemsketch 4.5New Development of Drawing Chemical Structure--ACD/Chemsketch 4.5阚 炜 张钟宁* (中国科学院动物研究所 北京 100080)  ACD/Chemsketch 4.5是一个化学绘图用软件,本文对其功能及如何使用作了较详细的介绍。  ACD/Chemsketch 4.5 is a powerful chemical drawing software package. In this paper, directions of software is given in detail.

移动化学反应界面、网络版、Chemical Reaction、国家重点实验室、Trace Elements、中国科学院、Ethylene Oligomerization、催化剂、Polymer Optical Fiber、乙酰基、Maleopimaric Acid、化学研究、精细化工产品、蒙脱土、马来海松酸、邻苯二甲酰、聚合物光纤、吡喃葡萄糖、黄樟素、合成

64

O64;O6

2004-01-08(万方平台首次上网日期,不代表论文的发表时间)

共2页

395-396

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化学通报

0441-3776

11-1804/O6

64

2001,64(6)

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