2,5-二芳基-1,3,4-噁二唑化合物的合成研究

以水杨酸为原料,通过硝化和酯化反应得到5-硝基水杨酸甲酯;三氯氧磷催化作用下,对5-硝基水杨酸甲酯和单酰肼缩合反应得到的芳香双酰肼进行环合,制备得到2个2,5-二芳基-1,3,4-噁二唑类化合物,其结构和荧光性能经IR、1HNMR和荧光测试技术加以确证。     

含噁二唑的新三唑类化合物的合成与生物活性研究

以氯乙酸乙酯、1-H-1,2,4-三氮唑、水合肼、芳香醛和醋酸酐为主要原料,通过N-烷基化、肼解、缩合、环化等反应合成了6个新型三唑类化合物.其结构经IR、1H NMR、EA 和MS确证.初步生物活性测试表明,此类化合物具有一定的杀菌活性.     

含呋喃环双噁二唑的合成与光谱性质

合成了6个3,4-二(2’-芳基-1’,3’,4’-噁二唑基)呋喃,化合物的结构经1H NMR、FTIR、MS表征。初步发光性能表明,在272～293 nm出现最大紫外-可见吸收峰;在DMF溶液中,341～375 nm出现最大荧光发射峰,是一类紫色发光材料。     

二苯乙烯基双苯并噁唑类化合物的合成及光谱性能的研究

以对氰基氯苄为原料与取代的邻氨基苯酚反应，合成了标题化合物。测定了此类化合物的紫外光谱和荧光光谱，并以硫酸喹宁为参比标准测定了化合物的荧光量子产率。研究了分子结构与紫外光谱、荧光光谱的关系。     

含1,2,4-噁二唑噻唑类化合物的设计合成及生物活性

为了解决目前的农药抗性问题,采用活性亚结构拼接法,以噁虫酮和噻虫嗪为先导化合物,设计合成了一系列含1,2,4-噁二唑噻唑类化合物,使用核磁共振波谱以及高分辨质谱确认了目标化合物的结构,并对目标化合物进行了杀二斑叶螨卵室内生物测试实验,结果表明,目标化合物对二斑叶螨卵的孵化均具有一定的抑制活性,其中目标化合物I4e在质量浓度为500 mg/L时,螨卵孵化抑制率为100%,在质量浓度为50 mg/L时,目标化合物I4a、I4b、I4e对二斑叶螨卵的孵化抑制率分别为64%,62%,77%。     

1,3,4-噁二唑-2-酮类化合物的合成及生物活性

研究合成了一系列5-苯基-3-氢-1,3,4-噁二唑-2-酮的衍生物,其结构经1H NMR和质谱确认.所有目标化合物经生物活性测试,发现具有一定的杀菌、杀虫活性.     

含腈基的三苯胺基二苯乙烯化合物的合成及其电致发光性能研究

本文成功地合成了集空穴传输基因三苯胺和电子受体基团腈基于一个分子中的腈基取代的三苯胺基二苯乙烯系列化合物,获得电子和空穴都能够高效注入和传输的新型电致发光材料,由于这种材料制备的电致发光器件的性能稳定,启动电压显著降低,发光为黄绿色。     

邻杂环(噁二唑)甲酰苯胺类化合物的设计合成及杀虫活性初步研究

以超高效杀虫剂氯虫苯甲酰胺为先导,在酰胺部分引入了邻杂环(噁二唑),设计并合成了16个含邻杂环(噁二唑)甲酰苯胺类新化合物。生测结果表明,化合物普遍具有高杀虫活性,在10 mg/L剂量下对小菜蛾的致死率均大于80%。本研究结果为该类化合物的创制提供了参考。     

含有三氟乙氧基噁唑化合物的合成

唑化合物是一类生理活性物质。当其分子中引入含氟基团时能增强其活性．提出了引入含氟基团的典型方法。     

2，6-二（2’-芳基-1’，3’，4’-噁二唑基）吡啶的合成与光谱性质

合成了3个2,6-二(2'-芳基-1',3',4'-(噁)二唑基)吡啶化合物,用1HNMR、FT-IR、MS对其结构进行了表征.研究了它,们的UV-Vis吸收光谱、荧光光谱.紫外.可见吸收光谱表明:目标化合物在278～309 nm出现最大吸收峰;荧光光谱表明:目标化合物在DMF溶液中发射强的紫色荧光,在364～398 nm出现最大发射峰;固体发射强的紫蓝色荧光,在376～414 nm出现最大发射峰.     

Synthesis, characterization and fluorescence quenching of conjugated polymer containing triphenylamine group

Poly(triphenylamine-p-phenylenevinylene)s with two different end-groups were obtained through a Wittig polycondensation. The structures of two copolymers were characterized. Ultraviolet and visible spectroscopy (UV-Vis) and photoluminescence (PL) spectra show the end-capped polymer emits intensive green light in both solution and film state. Their applications in the detection of nitro compounds were investigated, and the results show high fluorescence quenching sensitivity of the end-capped polymer towards o-nitrotoluene (o-NT). When the concentration of o-NT was 21.5 × 10⁻³ mol/L, the fluorescence quenching reached 96%. Additionally, after the exposure of polymer film in three different quenchers such as dinitrotoluene (DNT), p-nitrobenzoquinone (p-BQ) and p-nitrotoluene (p-NT) for 600 s, its fluorescence quenching reached 93.6%, 11.5% and 77.9%, respectively. This kind of polymer has great advantages in preparation and may find applications in the detection of nitro explosives. __________ Translated from Journal of Functional Polymers, 2008, 21(1): 11–16 [译自: 功能高分子学报]     

含氯苯基的双噁唑啉类化合物的合成及表征

对苯二甲酸二甲酯与水合肼反应制得对苯二甲酰肼,对苯二甲酰肼分别与4-氯苯甲醛、2-氯苯甲醛、2,4-二氯苯甲醛反应生成相应的对苯二甲酰腙,再与乙酸酐环合成3个含氯苯基的双噁唑啉化合物,并利用IR,1H NMR,MS和元素分析对3个目标化合物(4a-4c)的结构进行了表征。     

吡啶环化合物的合成与结构表征

以2,6-二甲基吡啶、正丁基锂为初始原料,在温和的条件下,经1倍正丁基锂去氢后与苯乙酮加成得到含N,O-二齿配体化合物[2-(6-(CH3)C5H4N)CH2C(OH)(Ph)CH3],应用1 H NMR技术对其进行了结构表征。     

一种含吡啶环的单阳离子表面活性剂的合成

在三氟化硼乙醚溶液催化下,正辛醛与环氧溴丙烷首先反应生成2-庚基-4-溴甲基-1,3-二氧杂环戊烷,然后再与吡啶反应,研究合成了一种新型的含吡啶环的单阳离子表面活性剂(2-庚基-1,3-二氧杂环-4)甲烷-1-吡啶盐。产物结构经红外光谱和1HNMR分析表征并测定其电导率,该表面活性剂的临界胶束浓度为4.0×10~(-3) mol/L,表面活性强于传统表面活性剂。     

Synthesis,characterization and fluorescence quenching of conjugated polymer containing triphenylamine group

Poly(triphenylamine-p-phenylenevinylene)s with two different end-groups were obtained through a Wittig polycondensation. The structures of two copolymers were characterized. Ultraviolet and visible spectroscopy (UV-Vis) and photoluminescence (PL) spectra show the end-capped polymer emits intensive green light in both solution and film state. Their applications in the detection of nitro compounds were investigated, and the results show high fluorescence quenching sensitivity of the end-capped polymer towards o-nitrotoluene (o-NT). When the concentration of o-NT was 21.5 × 10^-3 mol/L, the fluorescence quenching reached 96%. Additionally, after the exposure of polymer film in three different quenchers such as dinitrotoluene (DNT), p-nitrobenzoquinone (p-BQ) and p-nitrotoluene (p-NT) for 600 s, its fluorescence quenching reached 93.6%, 11.5% and 77.9%, respectively. This kind of polymer has great advantages in preparation and may find applications in the detection of nitro explosives.     

新型含吡啶环双酰胺衍生物的合成及生物活性

以吡啶羧酸和取代邻氨基苯甲酸为起始原料,设计并合成12个双杂环双酰胺类化合物,其结构经1HNMR、13CNMR、IR及元素分析确证。初步生物活性测试结果表明,在200、500μg/mL浓度下部分化合物对青枯病病原菌(Pseudomonas solanacearum)进行活性测试,结果表明所合成的化合物对青枯病病原菌有一定抑菌活性,其中N-(2-(6-乙氧基苯并噻唑-2-氨基甲酰基)-4-甲基苯基)-3-吡啶甲酰胺在500μg/mL浓度下对青枯病病原菌的抑菌活性为60%。     

Synthesis and photophysical properties of novel organo-soluble polyarylates bearing triphenylamine moieties

Two series of new blue photoluminescent aromatic polyesters (polyarylates) were synthesized from 4,4′-dicarboxytriphenylamine and 4,4′-dicarboxy-4″-methyltriphenylamine with various bisphenols by the diphenylchlorophosphate (DPCP) activated direct polycondensation in a medium of pyridine and lithium chloride. These polymers were amorphous and readily soluble in various common organic solvents including DMAc, THF, and chloroform, and could be cast from their chloroform solutions into transparent films due to their excellent solubility. These polyarylates exhibited moderately high T _g values (186–264 °C) and thermal stability. In THF solution, these triphenylamine-containing polyarylates showed UV-Vis absorption bands at 359–365 nm and photoluminescence peaks around 427–451 nm in the blue region. Figure Two series of new blue photoluminescent aromatic polyesters (polyarylates) were synthesized from 4,4’-dicarboxytriphenylamine and 4,4’-dicarboxy-4”-methyltriphenylamine with various bisphenols by the diphenylchlorophosphate (DPCP) activated direct polycondensation in a medium of pyridine and lithium chloride. These polymers were amorphous and readily soluble in various common organic solvents including DMAc, THF, and chloroform, and could be cast from their chloroform solutions into transparent films due to their excellent solubility. These polyarylates exhibited moderately high Tg values (186-264 oC) and thermal stability. All the PL spectra of these polymers showed a blue shift when the solvent was changed from NMP to THF or chloroform. Solvation should increase the interaction between polymer chain and solvent, which may consume certain excitation energy and lead to increase on the emission wavelength.     

Synthesis and biological activity of some more heterocyclic compounds containing benzothiophene moiety

3-Chloro-1-benzothiophene-2-carbonylchloride 1 was allowed to react with hydrazine hydrate to give carbohydrazide 2. The reaction of 3-chloro-1-benzothiophene-2-carbohydrazide 2 with potassium thiocyanate gave compound 3, which was cyclized to form thioxotetrahydropyrimidine 4, thiazoles 5a–e, triazoles 7a–e and oxadiazoles 10a–h. The structures of all the synthesized compounds were confirmed by spectral data and have been screened for antimicrobial, analgesic and anthelmintic activities.

     

含喹喔啉环1,3,4-睧二唑衍生物的合成及结构鉴定

报道了果糖与邻苯二胺反应制得喹喔啉 -2 -甲醛后 ,与芳酰肼作用得到相应的芳酰腙 ,芳酰腙在不同的条件下环化分别得到 1 ,3 ,4 -睧二唑衍生物 ,产物经元素分析、IR、1 HNMR和 MS确证了其结构