微波辐射下一步合成2-甲氧基-3-氰基-4-芳基吡啶和2-氨基-3-氰基-4-芳基吡喃衍生物

2，5－双亚苄基环戊酮与丙二腈在氢氧化钠－甲醇或哌啶－乙醇中，经微波辐射一步合成了2－甲氧基－3－氰基－4－芳基吡啶和2－氨基－3－氰基－4－芳基吡喃衍生物，反应在3－9mi内完成，产率56％－78％。     

JK-951型测油仪在废水测定中的应用

本文介绍了用JK－951型红外测油仪测定废水中油含量的分析过程，该仪器与OCM－220油分析仪相比的明显特征是考虑了芳环中C－H键的伸缩振动，能准确地测出水体中油份浓度地全部含量。     

NBR增稠增韧α-氰基丙烯酸乙酯胶粘剂

以拉伸剪切强度，冲击剪切强度和光学相衬显微镜考察了丁腈橡胶（NBR）的含腈量，薄通次数以及加入量对α－氰基丙烯酸乙酯胶粘剂的表观粘度，胶接接头的力学性能和微观结构的影响。结果表明，NBR增稠效果明显，腈含量少的NBR增稠效果更佳，但随相对分子质量减少效果渐降；NBR增韧也显著，中腈含量的NBR增韧效果最好；薄通次数为40次，NBR26质量分数为9％的改性α－氰基丙烯酸乙酯胶粘剂中的NBR的粒径为5－20μm，并均匀分散于聚合物基体中，大大的提高了改性α－氰基丙烯酸乙酯胶粘剂的冲击剪切强度和粘度，它们分别是原来的11倍和250倍左右。     

3-(2-芳基-3-乙酰基-1,3,4-噁二唑啉-5-基)-1,1-二甲基- 1,2,5,.6-四氢吡啶碘化物的制备及结构确证

报道了烟酰肼与取代芳醛反应生成相应的烟酰芳腙在醋酐催化下生成2芳基－3－乙酰基－5－（吡啶－3－基）－1，3，4恶二唑啉，不经分离直接与碘甲烷作用生成相应的季铵盐，接着用硼氢化钠还原季铵化物而得含四氢吡啶环和恶唑啉环的新化合物3－（2－芳基－3－乙酰基－1，3，4－恶二唑啉－5－基）－1，1－二甲基－1，2，5，6－四氢吡啶碘化物，其结构经IR，^1HNMR，MS和元素分析确诊。     

含氰基单偶氮分散染料氰化工艺的探讨

一、含氰基单偶氮分散染料基本化学结构具有如下式(Ⅰ)所示,在重氮组份内偶氮基邻位至少含有一个氰基的单偶氮分散染料(尤其是深蓝色染料),具有色光鲜艳、分子消光系数大、各项牢度好、应用性能优良、制造简便、经济效果显著的优点。正是基于该点,国内许多科研单位和染料制造厂家正致力于含氰基单偶氮分散染料的研制工作。该类染料在化学结构上系属于芳腈。制备芳腈的方法很多,但用氰基置换芳卤分子内可     

2-氰基-2-对硝基苯基乙酸乙酯的合成研究

实验选用氨基钠、三苯甲醇钠和叔丁醇钠作催化剂，以代替高危险性的催化剂氢化钠来合成20氰基－2－对硝基苯基乙酸乙酯。经过实验，筛选出最佳反应条件：以二甲基亚砜作溶剂，三苯甲醇钠为催化剂，50℃时粗产品的收率达68．16％，比文献值高约10％。     

5—烷基—2—（4—氰基苯基）—1，3—二恶烷的合成

对5－烷基－2－（4－氰基苯基）－1，3－二恶烷的合成进行了研究，以5－烷基－2－（4－氰基苯基）－1，3－二恶烷的合成为例，论述了以溴代烷和丙二酸二乙酯为初始原料，采用相转移催化烃基化反应合成了2－戊基丙二酸二乙酯，收率91．7％；进而以四氢铝锂和硼氢化钠为还原剂于0－20℃在四氢呋喃溶剂中合成了2－戊基丙二醇，收率≥80％；再与对氰莽本甲醛在催化剂氯化钙存在下反应全盛了5－烷基－2－（4－氰基苯基）－1，3－二恶烷，收率≥90％，并通过核磁共振氢谱和红外光谱证实了其结构。     

N-丁基-3-甲酰胺基-4-甲基-6-羟基-2-吡啶酮的HPLC测定

研究了用高效液相色谱测定N－丁基－3－甲酰胺基－4－甲基－6－羟基－2－吡啶酮含量的方法，样品在ODS柱上分离，流动相为含0．2％四丁基氯化铵的甲醇－水体系，流速为1．0mL/min，紫外254nm检测，方法简便，快速，测定的变异系数为0．5％－0．9％。     

微波加热法合成蒽/2-氰基丙烯酸乙酯加成物

本文研究了利用微波加热法在甲苯溶剂中通过２－氰基丙烯酸乙酯与蒽进行Ｄｉｅｌｓ－Ａｌｄｅｒ反应合成了标题化合物。     

β-取代丙烯酸的合成研究

研究了β－取代丙烯酸的Ｋｎｏｅｖｅｎａｇｅｌ－Ｄｏｅｂｎｅｒ的一种新合成方案,由此合成了一系列β－取代丙烯酸类化合物。结果表明,新合成法用于取代芳醛合成β－取代丙烯酸,操作简便,反应迅速,收率提高,具有实用价值。     

Synthesis and Characterization of Polyimides Derived From Cyano-Containing 1,4-Bis(4-aminophenoxy)benzene Monomers

Summary A series of three new cyano-containing diamines based upon 1,4-bis(4-aminophenoxy)benzene was synthesized and polymerized with six different dianhydrides to yield 18 different polyimides. Due to the high dipole moment of the cyano group, it was believed that these polymers would display differing degrees of electroactivity depending upon the degree and position of cyano substitution. The type of dianhydride bridging group and length are also factors that affect the electroactivity of polyimides. Polyimides based upon 1,4-bis(4-aminophenoxy)benzene were used as reference materials by which the respective cyano-containing analogs were compared. As the degree of cyano group substitution increased, the glass transition temperature increased. As cyano substitution increased, the polymer chain flexibility decreased due to hindered rotation about the phenyl-ether-phenyl linkages in the diamine portion of the polymer. The tensile moduli ranged from 2.97 to 4.57 GPa and ultimate tensile strengths from 79 to 156 MPa, which are typical values of aromatic polyimides.     

Lead Evaluation of Tetrahydroquinolines as Nonsteroidal Selective Androgen Receptor Modulators for the Treatment of Osteoporosis

Tetrahydroquinoline (THQ) was deemed to be a suitable scaffold for our nonsteroidal selective androgen receptor modulator (SARM) concept. We adapted the strategy of switching the antagonist function of cyano‐group‐containing THQ (CN‐THQ) to the agonist function and optimized CN‐THQ as an orally available drug candidate with suitable pharmacological and ADME profiles. Based on binding mode analyses and synthetic accessibility, we designed and synthesized a compound that possesses a para‐substituted aromatic ring attached through an amide linker. The long‐tail THQ derivative 6‐acetamido‐N‐(2‐(8‐cyano‐3a,4,5,9b‐tetrahydro‐3H‐cyclopenta[c]quinolin‐4‐yl)‐2‐methylpropyl)nicotinamide ( 1 d ), which bears a para‐acetamide‐substituted aromatic group, showed an appropriate in vitro biological profile, as expected. We considered that the large conformational change at Trp741 of the androgen receptor (AR) and the hydrogen bond between 1 d and helix 12 of the AR could maintain the structure of the AR in its agonist form; indeed, 1 d displays strong AR agonistic activity. Furthermore, 1 d showed an appropriate in vivo profile for use as an orally available SARM, displaying clear tissue selectivity, with a separation between its desirable osteoanabolic effect on femoral bone mineral density and its undesirable virilizing effects on the uterus and clitoral gland in a female osteoporosis model.     

New soluble polyamides and polyimides containing polar functional groups: pendent pyrazole rings with amino and cyano groups

A series of aromatic polyamides and polyimides containing pendent pyrazole rings with amino and cyano groups were prepared from a new monomer, 1-(2,4-diaminophenyl)-3-phenyl-4-cyano-5-aminopyrazole, which was prepared from (chloromethylene)propanedinitrile and 2,4-dinitrophenyl hydrazine with two steps. In addition, model compounds were synthesized and characterized by elemental analyses, Fourier transform infrared (FTIR), and nuclear magnetic resonance (NMR) spectroscopy. The amino and cyano groups on the pyrazole ring were not affected during the polymerization process. The synthesized polymers, with intrinsic viscosities of 0.33–0.53 dL/g, were soluble in various organic solvents. They showed no T_g values before degradation, and the 5% weight loss temperature of the polyamides and the polyimides occurred at approximately 420 and 470 °C, respectively. They also underwent no thermal transitions, such as degradation or crosslinking, up to 440 °C in spite of the presence of pendent amino and cyano groups.     

氰基取代苯基噻吩棒状线圈嵌段分子的合成与液晶行为研究

以Suzuki偶合反应为关键步骤,合成了以苯基噻吩为刚性棒状核,核的一端是带在噻吩环上的氰基,另一端是带在苯基上的极性多醚链的两亲性嵌段分子,采用POM测试方法考察了极性多醚链的末端基团为羟基、羧酸钠盐及可聚合的丙烯酰基的嵌段分子的液晶性质,以及通过丙烯酰基聚合形成的侧链型高分子的液晶性质,仅在极性多醚链的末端基团为羧酸钠盐的嵌段分子中观察到了层列相的液晶性质,而其他的嵌段化合物及高分子都没有热致性的液晶性质,对挑选出的样品的溶致性液晶性能也进行了研究,加水可以导致液晶相形成,提高液晶相的稳定性。     

对甲苯甲酸的氰化

本文报道了对甲苯甲酸与尿素反应，进行直接氰化浆羧基转变化氰基生成对甲腈的情况，详细研究了对甲苯甲酸直接氰化的工艺条件。当对甲苯甲酸与尿素的摩尔比为１：１．６，采用分段保温的加热方式，产品收率达７５．６％，对未反应完全的原料，中间体及反应中使用的溶剂进行了回收和循环利用，没有严重的环境污染问题。     

Systematic Study of the Influence of Several Parameters on Physicochemical Properties of Oligoanilines and their Derivatives

Abstract

In this work we study the influence of asymmetry, chain length, oxidation state, counterions and substituents groups over the physicochemical properties of oligoanilines.

We present some semiempirical quantum chemistry calculations of optimized structures, charge distributions, energy gaps and enthalpies of formation (ΔHf) for aniline oligomers in different oxidation states using the AMI method. Also, substituted structures are caicuiated. The substituents studied are methoxy, methyl and cyano groups located at positions 2 or 3 in the benzenoid ring. Methoxy substituted tetraanilines show hydrogen bridge formation; therefore, these are the most stable structures. The cyano group (σ-π acceptor) induces a lowering of charge on the terminal amine group in all oxidation states. Our calculations show that a linear relationship exists between charge on terminal amine group and the IP. having different slope values depending on the substituents position. Theoretical energy gaps and experimental ones (from references) display a quite linear relationship. Tetraanilines substituted with cyano groups show the lowest energy gap and is the most interesting material that we have studied. Moreover, charged structures have been analyzed. Calculations on radical cation and dication structures are introduced. The influence of the counterions on the electronic properties of charged structures is presented.     

Design,Synthesis, and Biological Evaluation of (+)-Camphor- and (−)-Fenchone-Based Derivatives as Potent Orthopoxvirus Inhibitors

In this work, a library of (+)-camphor and (−)-fenchone based N-acylhydrazones, amides, and esters, including para-substituted aromatic/hetaromatic/cyclohexane ring was synthesized, with potent orthopoxvirus inhibitors identified among them. Investigations of the structure-activity relationship revealed the significance of the substituent at the para-position of the aromatic ring. Also, the nature of the linker between a hydrophobic moiety and aromatic ring was clarified. Derivatives with p-Cl, p-Br, p-CF_3, and p-NO₂ substituted aromatic ring and derivatives with cyclohexane ring showed the highest antiviral activity against vaccinia virus, cowpox, and ectromelia virus. The hydrazone and the amide group were more favourable as a linker for antiviral activity than the ester group. Compounds 3 b and 7 e with high antiviral activity were examined using the time-of-addition assay and molecular docking study. The results revealed the tested compounds to inhibit the late processes of the orthopoxvirus replication cycle and the p37 viral protein to be a possible biological target.     

4-氨基-1,2,4-三氮唑并芳香醛类希夫碱的合成与表征

三氮唑环为抗真菌药物的基本药效基团,为探索芳香醛缩氨基三氮唑的合成条件,以4-氨基-1,2,4-三氮唑与芳香醛为原料,在冰醋酸催化下合成了9种芳香醛类希夫碱,收率71.6%~92.3%,并通过元素分析、IR和1H NMR确定了目标化合物的结构。其中几种鲜见文献报道。同时讨论了影响反应收率的因素。     

姜黄素衍生物的生物活性研究概况

姜黄素衍生物具有杀虫、抑菌、抗病毒、消炎抗氧化、抗癌等多种生物活性。概述了对姜黄素芳环及芳环上酚羟基、β-二酮、活泼亚甲基进行修饰,或者对去掉活泼亚甲基和一个羰基后的1,4-戊二烯-3-酮类化合物进一步修饰后,得到的化合物具有较高的生物活性,并展望了其未来的发展前景。     

极性基团（-CN）对水性聚氨酯涂料附着力的影响

以聚丙二醇（PPG）、聚己内酯（PCL）、聚碳酸酯二醇（PCDL）和自制含氰基大分子二醇（PZJ）等为混合软段,异佛尔酮二异氰酸酯（IPDI）等为硬段,合成含氰基水性聚氨酯乳液。通过红外光谱表征了含氰基聚氨酯膜的结构,用动态光散射法（DLS）测定了乳液的粒径及其分布,并研究了氰基含量对聚氨酯膜的附着力的影响。