（1R，3R）－（－）－1－甲氧基－5，6－亚甲二氧基－3－（3，4，5－三甲氧苯基）－异苯并二氢呋喃的选择性合成

在ＬｉＡｌＨ４及光学活性物质（５Ｒ）－孟氧基－２（５Ｈ）－呋喃酮（５）存在下，将６－（３′，４′，５′－三甲氧基羟卞基）－胡椒醛二甲缩醛（４）的甲苯溶液加热回流８小时，可得旋光性的（１Ｒ，３Ｒ）－（－）－１－甲氧基－５，６－亚甲二氧基－３－（３，４，５－三甲氧苯基）－异苯并二氢呋喃晶体（１），产率６１．８％．     

萘并呋喃及吡喃类化合物的光谱及杀菌活性

报道了一系列新的萘并呋喃、萘并呋喃及其衍生物的￣１３Ｃ核磁共振谱的化学位移、最大紫外吸收波长和消光系数、最大荧光波长和量子产率，以及农用杀菌活性。化合物２，３－二甲基－５－羟基－呋喃并［３，２－ｂ］茶（Ｉ－１）、２，７－二乙酸基－１，８－二乙酞基萘（ＩＩＩ－３）、４－甲基－７－羟基萘并［１，２－ｂ］吡喃－２－酮（ＩＩ－１）和３－氢－４，８，９－三甲基呋喃并［２＇，３＇：５，６］萘并［１，２－ｂ］吡喃－７－酮（ＩＩ－３）对炭疽病有很好的离体抑制活性，Ｉ－１和ＩＩＩ－３对该病还具有很强的活体防效。     

关木通中的苯丙素成分研究

首次从关木通（Ａｒｉｓｔｏｌｏｃｈｉａ ｍａｎｓｈｕｒｉｅｎｓｉｓ Ｋｏｍ．）的乙酸乙酯提取物中分离出７个苯丙素类化合物,其中两个为８－Ｏ－４′新木脂素：１－（４－羟基－３－甲氧基－苯基）－２－｛２－甲氧基－４－「１－（Ｅ）－丙烯－３－醇」－苯氧基｝－丙烷－１,３－二醇（赤式）（１）,１－（４－羟基－３－甲氧基－苯基）－２－｛２,６－二甲氧基－４－「１－（Ｅ）－丙烯－３－醇」－苯氧基｝－丙烷－１,     

新的筒状大三环穴醚的合成

由二苯并－１８冠－６与二元酸反应制得的冠醚酮酸１用黄鸣龙法还原成冠醚烷酸２，２经酰氯化生成４′，４″（５″）－双（氯甲酰基亚烷基）二苯并－１８－冠－６（３），再将３与４′，５′－二氨基二苯并－１８－冠－６缩合，制得新的筒状大五三环穴醚４ａ和４ｂ。     

巨枝大戟化学成分的研究

从巨大枝戟的全草中分离得到１０个化合物,分别鉴定为：１,２：５,６二－氧－异丙叉基－α－Ｄ－呋喃葡萄糖甙（１）,１,２：４,５－二氧－异丙叉基－β－Ｄ吡喃果糖甙 （２）,１,２氧－异丙叉基－α－Ｄ－呋喃葡萄糖（３）,１,２－氧化－异丙叉基－β－Ｄ吡喃果糖甙（４）,５－羟基甲基糖醛（５）,５－甲氧基甲基糖醛（６）,Ｄ－葡萄糖（７）,β－谷苗醇（８）,β－胡罗卜甙（９）,乔木萜醇（１０）,其中１－７为     

（1R,3R）—（—）—1—甲氧基—5,6—亚甲二氧基—3—（3,4,5—三甲氧苯基）…

在ＬｉＡｌＨ４及光学活性物质－孟氧基－３（５Ｈ）－呋酮存在下，将６－（３’，４，５－三甲氧基羟卞基）－胡椒醛二甲缩醛的甲苯溶液加热回汉８小时，可得旋光性的（１Ｒ，３４）－（－１）－１－甲氧基－５，６－亚甲二氧基－３－（３，４，５三甲氧苯基）－异苯并二氢呋喃晶体，产率６１．８％。     

庆阳乌蓼中黄酮类化合物的研究

从甘肃庆阳产中草药乌蓼中首次分离得到了５个黄酮类化合物：５７二羟基６７二甲氧基黄酮（１）,５７二羟基黄酮（２）,５７二甲氧基４′羟基黄酮（３）,桑色素７ＯβＤ葡萄糖甙（４）,５羟基３′甲氧基双氢黄酮７Ｏ芸香糖甙（５）．     

华荠薴中的黄酮类化合物

从华荠（ＭｏｓｌａｃｈｉｎｅｎｓｉｓＭａｘｉｍ）中分离鉴定了６种黄酮类化合物，经光谱分析及化学方法鉴定为：５－羟基－６，７－甲基黄酮；５，７－二羟基－４＇－甲氧基黄酮；洋芹素；鼠李柠檬素；桑色素－７－Ｏ－β－Ｄ－葡萄糖甙；山奈素－３－Ｏ－β－Ｄ－葡萄糖甙．均为首次从该植物中分得．     

溴素的有机化学：I.2,4,6—三溴苯甲酸溴代和非溴代芳酯的合成

用ｍ－氨基苯甲酸作原料，经溴代、重氮化、还原脱氨、酰氯化和酯化反应等步骤，合成了六种新型的三溴苯甲酸代和非溴代芳酯，即：双（２，４，６－三溴苯甲酸）－２′，３′５′，６′－四溴－１′，４′－苯二酯，２，４，６－三溴苯甲酸－２′，３′，４′，５′，６′－五溴苯酯，２，４，６－三溴苯甲酸－２′，４′，６′－三溴苯酯，２，４，６－三溴苯甲酸－４′－溴苯酯，２，４，６－三溴苯甲酸－４′－甲基苯酯和２，４，     

木香薷挥发油主要化学成分的研究

应用ＧＣ、ＧＣＭＳＣＯＭＰ法从采自甘肃天水地区的木香薷（ＥｌｓｈｏｌｔｚｉａｓｔａｕｎｔｏｎｉＢｅｎｔｈ）挥发油中分离出６９个化学成分．鉴定了以１８桉叶油素（２２３５％）、反式石竹烯（１３８６％）、莰醌（４６％）、反式β罗勒烯（３２１％）、苯甲醇（３７１％）、２（２′３′环氧３′甲基丁基）３甲基呋喃（１０６７％）等为主的５５个成分．其中有２６个成分为首次从木香薷中检出．其主要成分占挥发油总量的９４％以上     

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.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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