消除反应的立体化学

本文应用构象分析讨论消除反应的立体化学,并给出满意的解释。     

含邻酚结构化合物氧化反应中自由基的检测

用电子自旋共振技术研究了水溶液中邻苯二酚、ＤＯＰＡ和槲皮素等化合物与Ｏ２－反应中产生的活性自由基中间体，根据所观察别的ＥＳＲ谱的超精细结构常数可以推断它们都是邻半醌负离子基，在自旋捕获实验中发现无水乙腈中碱性条件下这些化合物与Ｏ２反应时会产生Ｏ２－，这表明在某些重要的生物抗氧化剂的抗氧化过程中，可能产生新的活性氧．     

Studies on a series complexes of copper (II), zinc (II), cobalt (III) with Schiff base derived fromd-glucosamine and salicylaldehyde

Copper (II) zinc (II) cobalt (III) complexes with the Schiff base derived from salicylaldehyde andd-glucosamine were synthesized. These compounds abbreviated as SG, CuSG, ZnSG, CoSG were characterized by elemental analyses, IR, UV-Vis,¹H NMR and MS spectrum. ESR spectrum, magnetic susceptibility measured by Evans method for CuSG had also been done. It is suggested that the complexes in solution have pseudotetrahedral structure. It was found that SG would occur a photochemical reaction if a beach of 355 nm ultravisible light shone on its aqueous solution. The reaction was in further research. Supported by the National Natural Science Foundation of China Ye Yong: born in 1970, Ph. D graduate student     

The strong cooperativity of dioxygen binding by dicobalt (II) diporphyrin compounds in nonaqueous solution at room temperature

Thermodynamic data were determined for the reversible binding of O₂ to two compounds of dicobalt(II) di(meso-tetra-phenyl)porphyrin derivatives with different lengths of diamidoaliphatic bridge (abbreviated to Co₂PP₈ and Co₂PP₄) in N,N-dimethylformamide at room temperature. The partial pressure of dioxygen necessary for half-oxygenation (P _1/2) and hill coefficient (n) at 298 K were determined as follows:P _1/2=54.2 kPa,n=2.0 for Co₂PP₈ andP _1/2=6.8 kPa,n=1.8 for Co₂PP₄, respectively. The rate equations of reversible oxygen binding by Co₂PP₈ were determined and the reaction path was proposed. The results of ther-modynamic and kinetic studies indicate that there exists strong cooperative effect during oxygenation of the compounds. The ESR observation reveals that the dioxygen complexes formed in the solutions are of superoxo (Co-O ₂ ⁻ ) type. Supported by the Research Foundation of the State Education Commission of China Zhou Xiaohai: born in 1962, Ph.D. Associate professor     

聚硅氧烷类侧链型高分子液晶的合成与表征

合成了对－（４－烯丙氧基苯甲酰氧基）苯甲酸联苯酚酯，将其与聚甲基氢硅氧烷反应得到侧链型液晶聚硅氧烷。用红外及＾１Ｈ－ＮＭＲ方法证实了所合成的单体及聚合物的结构。从ＮＭＲ谱上得出，聚合物含有１７．６％的α－加成侧链，与作者不久前提出的液晶聚硅氧烷一般都含有一定比例的α－加成侧链的推测相吻合。此外还用热台偏光显微镜方法研究了单体与聚合物的相行为。     

电极反应标准常数及其应用

本文提出了电极反应标准常数的概念，运用该常数可以简便地判断氧化剂、还原剂的相对强弱及计算有关反应的平衡常数等。     

正常赖默—悌曼反应研究:超声波辐射与相转移催化合成方法

系统研究了正常及反常赖政－悌曼反应（NormalorAbnormalReliner－TiemannReavction，NRYorART）；研究了相转移住化方法和超声波辐射技术及其在正常Reliner—Tiemann（NRT）反应中的应用，从而使反应条件温和，效率增加，对邻比大，时间缩短，取得较好收效。     

对高锰酸钾测定双氧水含量的分析方法的研究和改进

研究ＫＭｎＯ４和双氧水在酸性条件下的自催化反应动力学，以及反应的诱导期与两种反应物浓度的关系，提出在各种浓度和ＫＭｎＯ４分析Ｈ２Ｏ２含量靠自身催化的分析方法，后的方法，适用浓度范围宽，反应速度快，滴定分析误差小。     

钨卡宾络合物的一种形成方法及其与醛、酮的反应

四氯氧化钨或六氯化钨与不含β Ｈ的Ｇｒｉｇｎａｒｄ试剂在无水四氢呋喃中反应，形成钨的卡宾铬合物，可与醛、酮反应得到烯烃，具有类似于Ｗｉｔｉｇ试剂的功能     

1,4,6,9—四硝基—1,4,6,9—四氮杂双环[4,4,0]癸烷合成工艺改进

以乙二胺和乙二醛为原料，合成了１，４，６，９－四氮杂双环（４，４，０）癸烷（１），反应得率为７７．５％，母体化合物（１）在硝酸－乙酐体系中硝化，制得１，４，６，９－四硝基－１，４，６，９－四氮杂双环（４，４，０）癸烷（２），文中研究了合成母体化合物（１）的缩合总得率高达６４．０％，熔点为２２４￣２３０℃，文中研究了合成母体化合物（１）的缩合反应的机理和影响因素，讨论了母体化合物（１）硝化反应的影响