植物细胞培养液作为生物转化系统在不对称有机合成中的研究进展

综述了植物细胞培养液作为生物转化系统，以前手性酮类为底物，不对称合成手性羟基化合物。该合成方法新颖独特，操作简便，反应条件温和，产物高度立体选择性，产率适中。此方法还适用于某些难以得到的天然产物和合成。此方法为手性羟基某些天然产物的合成提供了一些新的途径。     

二并哌嗪的合成与硝化研究

由乙二胺与乙二醛的缩合反应制备了二并哌嗪，以硝酸－乙酸酐作用化剂硝化二并哌嗪得到四硝基二并哌嗪。通过研究反应时间，反应温度，溶剂，ｐＨ值，料比和加料方式等因素对反应的影响，确定了缩合和硝化过程较佳的工艺条件，两步反应的收率分别达到７７％和８２％，根据缩合和硝化反应的理论，对实验结果进行了分析讨论。     

用Z—scan法研究推拉型偶氮化合物的非线性光学性质

利用Ｚ－ｓｃａｎ法，对掺有以偶氮苯作为母体的一个系列推拉型偶氮化合物的有机聚合物薄膜的非线性光学系数进行了测量，实验结果的分析表明，材料的非线性折射率来源于共轭π电子效应。     

Physicochemical and microbiological effects of biosurfactant on the remediation of HOC-contaminated soil

Remediation of soil contaminated by hydrophobic organic compounds using biosurfactants as additives involves interactions between soil matrix, hydrophobic organic compound contaminants, biosurfactants and microorganisms. In this paper, the mechanism for biosurfactants to enhance the contaminant degradation is basically revealed. Biosurfactants can enhance solubilization of the contaminants in the soil matrix, change their mass transfer properties into the aqueous phase, as well as affect their sorption properties. Furthermore, biosurfactants can act on microorganisms and change their surface properties, accordingly cause new growth and uptake behavior of the bacteria in the soil matrix. Both the physicochemical and the microbiological effects can basically increase the bioavailability of the contaminants and enhance their degradation.     

光谱学事件的时间标度与稀土配合物的荧光性质

阐述了光谱学动态事件的时间标度与稀土配合物的荧光性质及其相互关系，通过动态事件时间标度上的相对性来讨论稀土配合物的某些发光问题，着重探讨一种把复杂问题进行简化处理的方法．     

三元石墨插层化合物的合成与表征

采用混合熔盐法，以CuCl2，FeCl3为客体材料，粒径1—10μm天然鳞片石墨为主体材料，合成出2，3阶结构的三元石墨层间化合物CuCl2—FeCl3—GICs．简述其制备工艺，应用XRD，SEM，EDS对产物的晶体结构、表面形貌及元素组成进行测试表征，并检测和分析其电磁传导性能．测试结果表明CuCl2—FeCl3—GICs是一种新型轻质导电材料．     

新型手性杂环并环丁内酯的合成研究

研究5－（l-孟氧基）－3－溴－2－（5H）－呋喃酮与硝基烷烃之间的Michael不对称加成反应和取代反应，通过该串联反应得到了一系列其他方法无法得到的新型多手性杂环并环化合物；丰富了5－（l－孟氧基）－3－溴－2－（5H）－呋喃酮的反应，通过IR，^13CNMR，^1HNMR，Ms等确证了新型多手性杂环并环化合物的结构和构型。     

Carcinogenesis switched on by DNA cross-link between complementary bases aroused by aflatoxin and N-nitroso compounds

The di-region theory put forward by Dai Qianhuan, a molecular mechanism of chemical carcinogenesis, concluded that the carcinogenesis induced by most of the environmental carcinogens is switched on by the cross-linking between DNA complementary bases aroused by the bifunctional alkylation of their metabolic intermediates. It was evidenced in this paper with DNA filter elution method that one carcinogenic mycotoxin, aflatoxin G1, four carcinogenic N-nitroso compounds, N-nitrosodiethyl-amine, N-nitrosodibutyl-amine, N-nitrosomorpholine and N-nitrosopyrrolidine, one carcinogenic diazo color, 4-dimethylaminodiazobenzene and one carcinogenic nitrogen-containing heterocyclic compound, quinoline, all induced DNA interstrands cross-linking with dosage correlation after metabolic activation. However, the non-carcinogens in corresponding series for control, aflatoxin B2, N-nitroso-diphenylamine, 4′-bromo-4-dimethylaminodiazobenzene and isoquinoline, cannot induce DNA interstrands cross-linking at all in the same condition. A method for the determination of cross-linking ratio between DNA complementary bases in total DNA interstrands cross-linking, which has no monitoring measure as yet, has been established for the first time based upon a 24 hour repairing experiment. The DNA complementary pair cross-linking ratio induced by a metabolized carcinogen is correlated with its carcinogenic potential. It may be concluded that the mutations including point and frameshift mutagenesis induced by aflatoxin and other carcinogens are switched on by their corresponding cross-linking base pair between complementary bases. Therefore, the di-region theory is a reasonable molecular mechanism for chemical, endogenous and physical carcinogenesis.     

杂多化合物在C4催化中的应用

概述杂多型催化剂的特性，回顾近些年来杂多化合物用于异丁烯的催化氧化，丁烷的催化异构，异丁烷的烷基化及催化氧化的进展，分析目前存在的一些问题和一些反应的机理。     

天然水沉积物中吸附态多氯芳烃缺氧脱氯生物降解研究进展

在缺氧环境中 ,多氯代芳烃类化合物一定程度上能够被微生物降解 ,而还原脱氯 ,共代谢在此过程中具有重要的作用。物质本身的化学经构 ,环境外加碳源、能源的不同 ,环境温度及 p H值的差异 ,都对其降解过程具有很强的影响作用。其中 ,厌氧—好氧交替处理 ,共代谢的机制研究以及应用研究将是今后主要的研究趋势。