2种ω-1H-1,2,4-三氮唑基-2,4-二氯苯乙酮肟羧酸酯的合成及生物活性

以 2 ,4 二氯苯乙酮为原料 ,经溴化得ω 溴 2 ,4 二氯苯乙酮 ,该化合物在以三乙胺做缚酸剂 ,温度 0℃的条件下与 1H 1,2 ,4 三氮唑反应 5h ,所得产物ω 1H 1,2 ,4 三氮唑基 2 ,4 二氯苯乙酮与盐酸羟胺在添加吡啶 ,加热回流条件下反应 4 5h ,得到的酮肟分别与乙酰氯、苯甲酰氯在以三乙胺做缚酸剂 ,常温条件下反应 12h ,合成了目标产物ω 1H 1,2 ,4 三氮唑基 2 ,4 二氯苯乙酮肟乙酸酯与ω 1H 1,2 ,4 三氮唑基 2 ,4 二氯苯乙酮肟苯甲酸酯两种肟羧酸酯 ,总收率分别为 32 4 %与 34 8%,化合物的结构经元素分析、气质联用及核磁共振所证实。对目标产物进行了初步的杀菌、杀虫与除草活性测定 ,结果表明 ,ω 1H 1,2 ,4 三氮唑基 2 ,4 二氯苯乙酮肟苯甲酸酯对粘虫 (Mythimnaseparata)具有杀虫活性。     

含1,2,3-三氮唑哌啶衍生物的合成

1,2,3-三氮唑环作为药效基团呈现出多种生物活性,以六氢吡啶和环氧氯丙烷为底物,在微波辐射条件下,合成了叠氮基哌啶,并以此为原料,CuI为催化剂,MeCN-H2O(10∶1,v/v)为混合溶剂,与端基炔烃进行1,3-偶极环加成反应,合成含1,2,3-三氮唑功能基的哌啶衍生物,收率70%,其结构经核磁共振谱表征。     

Synthesis,Characterization, and Energetic Properties of N‐Rich Salts of the 4,5‐Dicyano‐2H‐1,2,3‐triazole Anion

The synthesis and characterization of the 4,5‐dicyano‐2H‐1,2,3‐triazole anion in its 5‐aminotetrazole, 1,5‐diaminotetrazole, and 1,5‐diamino‐4‐methyl‐tetrazole salts are reported. All compounds were characterized by IR, ¹H NMR, and ¹³C NMR spectroscopy, as well as elemental analyses. Their thermal decompositions were investigated by TG‐DSC. The densities, combustion heats, and sensitivity properties were tested. Additionally, enthalpies of formation, detonation pressures, detonation velocities, and heats of detonation were calculated. The compounds have potential application in the energetic materials field.     

点击化学在三羰基铼标记2,2’-二吡啶甲基胺衍生物中的应用

首先合成了2,2'-二吡啶甲基胺的炔基衍生物(c)和叠氮衍生物(d),再通过"点击化学"生成了两种含有吡啶环的三齿螯合剂。2,2'-二吡啶甲基胺上的3个氮原子和三羰基铼进行配位生成冷标记产物,点击化学产率大于90%,冷标记率大于80%。以炔丙基甘氨酸为原料,合成了1,2,3-三唑化合物,利用三唑环上的(N3)氮原子和氨基、羧基3个配位基团与三羰基铼水合物前体配位,点击化学产率大于90%,冷标记率大于90%。所合成的两种含有吡啶环的三齿配体和含有氨基酸的三唑化合物均可作为双功能螯合剂,是很有潜力的三羰基铼水合物放射性前体的标记配体。     

双子阳离子助剂在冷轧堆染色中的应用

将自主研发的三氮唑基Gemini型阳离子表面活性剂ADAC TZ处理冷轧堆染色前的棉针织物,结果表明,ADAC TZ适用于多类活性染料及新型碱剂。在棉针织物BES活性染料的冷轧堆染色中,配合使用新型碱剂QF-4,ADAC TZ能显著改善染料的染色性能,包括表观色深值K/S值、耐摩擦色牢度和耐皂洗色牢度等。     

New Ammonium- and 1,2,4-Triazolium-Based Ionic Liquids for Wood Preservation

Biological activity of new potential wood preservatives—ammonium- and triazolium-based ionic liquids—was determined employing screening agar-plate, agar-block, and perlite-block methods. Experiments were carried out on Scots pine (Pinus sylvestris L.) and beech (Fagus sylvatica L.) wood. This study examined the effect of the ionic liquid structure on anti-fungal efficacy, depth of penetration, and fixation in wood. It was stated that the fungicidal value of new ammonium compounds depended, above all, upon the cation structure; for Coniophora puteana, it ranged from 2.7 kg m^?3 to 4.6 kg m^?3. These compounds effectively protected Scots pine wood against the action of mold fungi. Ammonium ionic liquids with a nitrite anion were characterized by strong fungitoxic properties, stronger than ammonium nitrates. The application in the amount of 15 g m^?2 caused an insignificant growth of mold fungi on the surface of Scots pine wood. For the mixture of 7.5% tebuconazole and 7.5% propiconazole dissolved in ionic liquids, the synergistic effect against mold fungi at the application of 15 g m^?2 was found. Dissolving tebuconazole in didecyldimethylammonium nitrate repeatedly lowered the fungicidal value against brown-rot fungi, as well as increased penetration of the ionic liquids in wood. This was associated with reduced viscosity of this ionic liquid caused by the addition of 1,2,4-triazole derivatives. Quaternary derivatives of 1,2,4-triazoles showed very high activity against blue stain and wood-decaying fungi. Additionally, most of the test compounds were well-fixed in Scots pine wood. The spectral study in infrared confirmed that nitrite, nitrate anions, and didecyldimethylammonium cation were retained in the treated wood.     

3-氨基-5-羧基-1,2,4-三唑席夫碱的合成

含1,2,4-三唑环的席夫碱化合物一般都具有很好的生物活性。为了进一步探讨1,2,4-三唑席夫碱的合成,文中以3-氨基-5-羧基-1,2,4-三唑为原料,与取代芳醛反应,合成了8个3-氨基-5-羧基-1,2,4-三唑类席夫碱化合物。采用的反应条件为:3-氨基-5羧基-1,2,4-三唑与取代芳醛的摩尔比为1∶1,N,N-二甲基甲酰胺(DMF)为溶剂,冰醋酸为催化剂,在回流温度下反应3.5—4.5 h。化合物的结构通过IR,1H NMR和元素分析进行了表征。样品分析结果表明,在红外光谱中,所得目标产物在波数ν=1 600—1 625 cm-1处均出现C N的特征吸收峰;在1H核磁共振中,化学位移δ9附近有CH N的质子的化学位移出现。     

4-氨基-1,2,4-三唑苦味酸盐的合成与性能

以4-氨基-1,2,4-三唑和苦味酸为原料合成了含能化合物4-氨基-1,2,4-三唑苦味酸盐(4-ATPA),其结构经元素分析、FTIR、MS和1HNMR表征。在甲醇和乙醇溶液中获得了两种不同显微形貌的4-ATPA晶体,SEM分析表明,它们分别为长柱形和椭球形,XRD及DSC分析表明它们的晶型相同。X射线单晶衍射计算得到晶体密度为1.720g/cm3。经测定,4-ATPA的部分热性能及机械感度为:熔点195.26℃,400℃下不分解,真空安定性实验(VST)0.16mL.g-1(120℃,48h),失重(TG)0.14%(120℃,48h);撞击感度为4%、摩擦感度为0%(90°)、特性落高H50=87.4cm(5kg落锤),均优于TNT,静电火花感度V50=3.909kV,E50=0.233J,与环三亚甲基三硝胺(RDX)相当,5s爆发点360℃,1000s临界温度251℃。结果表明:4-ATPA有良好的综合热稳定性和较低的机械感度,是一种综合性能优良的炸药。     

3-氨基-3′-硝胺基-5,5′-联-1H-1,2,4-三唑的合成与表征

以3-氨基-1H-1,2,4-三氮唑-5羧酸为原料首次合成不对称结构的联三唑类富氮含能化合物3-氨基-3′-硝胺基-5,5′-联-1H-1,2,4-三唑(3),并通过红外,核磁,质谱等表征产物结构。采用差示扫描量热─热重分析联用法研究了其热稳定性和分解历程。结果表明,化合物3的分解温度达到160℃;利用氧弹量热仪测得标准摩尔燃烧焓Δ_CH_m~θ为-1952.25 kJ·mol~(-1),根据Hess定律计算得标准摩尔生成焓Δ_fH_m~θ=-336.245 kJ·mol-1,采用粉末密度仪测得粉末密度为1.6137 g·cm~(-3),用EXPLO 5程序预测爆压为9.6 GPa,爆速为5745.5 m·s~(-1),撞击感度为80 J,摩擦感度为360 N,表明该物质是一种新型不敏感含能材料。