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Sulfamic Acid Supported Zr-MOF: An Effective Catalyst for One-Step Synthesis of Novel 6-Amino-5-(4-Amino-2-Oxo-2H-Chromen) Analogs 氨基磺酸支撑的 Zr-MOF:一步合成新型 6-氨基-5-(4-氨基-2-氧代-2H-色烯)类似物的有效催化剂
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2276238
Sulfamic acid-functionalized Zr-MOF-NH2 was used as an active acidic metal-organic framework catalyst for the synthesis of new 6-amino-5-(4-amino-2-oxo-2H-chromen) (AAOC) analogs via a one-step reaction between 2-hydroxy-5-(aryldiazenyl)benzaldehyde, 4-aminocumarin, and 6-amino-1,3-dimethyluracil or 6-amino-uracil in EtOH under reflux conditions. The resulting UiO-66-NHSO3H was characterized by employing different types of spectroscopic techniques such as XRD, BET, FESEM, EDS, FT-IR, and TGA. In addition, ease of procedure, short reaction time, and recycling of the catalyst without much change in the catalytic activity are the advantages of this method.
利用氨基磺酸功能化 Zr-MOF-NH2 作为活性酸性金属有机框架催化剂,通过 2-羟基-5-(芳基二氮基)苯甲醛、4-氨基古柯碱和 6-氨基-1,3-二甲基脲嘧啶或 6-氨基脲嘧啶在 EtOH 中的一步反应,在回流条件下合成了新的 6-氨基-5-(4-氨基-2-氧代-2H-Chromen) (AAOC) 类似物。通过采用不同类型的光谱技术,如 XRD、BET、FESEM、EDS、FT-IR 和 TGA,对得到的 UiO-66-NHSO3H 进行了表征。此外,该方法还具有操作简便、反应时间短、催化剂可回收且催化活性不会发生太大变化等优点。
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引用次数: 0
Synthesis and Biological Activity of Indeno-Pyridine and Indeno-Pyran Derivatives in One-Pot Reaction 一锅反应合成茚并吡啶和茚并吡喃衍生物及其生物活性
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2273884
The peculiar one-pot reaction involving Carbaldehydes, malononitrile, and indane 1,3-dione was used to explain the alternative synthesis of indeno-pyridine and indeno-pyran derivatives. The synthesis of indeno-pyridine or indeno-pyran derivatives has been examined based on an effective modification in the Michael addition of indane 1,3-dione or malononitrile on Knoevenagel product throughout the reaction process. The reaction required up to 30 min to complete utilizing CuO nanoparticles (NPs) in water at room temperature, making the approach innovative and environmentally benign. All of the produced compounds have been validated using spectroscopic data. And they were then tested for their antimicrobial activities. All tested compounds showing greater efficacy against Sertaconazol and Chloramphenicol.
利用羰基醛、丙二腈和茚-1,3-二酮的奇特单锅反应来解释茚并吡啶和茚并吡喃衍生物的替代合成。在整个反应过程中,对茚-1,3-二酮或丙二腈与克诺文纳格尔产物的迈克尔加成反应进行了有效的改良,从而研究了茚并吡啶或茚并吡喃衍生物的合成。利用 CuO 纳米粒子(NPs)在室温水中进行的反应最长需要 30 分钟才能完成,这使得该方法具有创新性且对环境无害。所有生成的化合物都通过光谱数据进行了验证。然后对它们进行了抗菌活性测试。所有测试化合物对舍他康唑和氯霉素都有较好的疗效。
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引用次数: 0
Synthesis of 11H-Benzo[b]Fluoren-11-One via an Unprecedented Cascade Reaction of O-Phthaladehyde 通过邻苯二甲醛前所未有的级联反应合成 11H-苯并[b]芴-11-酮
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2270124
Developing multicomponent reactions in a cascade manner is a long-standing interest to chemists to access valuable organic materials more economically. Herein, we described a simple, economically viable method for synthesizing 11H-benzo[b]fluoren-11-one, a dual-state organic fluorophore, starting from ortho phthalaldehyde (OPA) in DMSO solvent. Simple and rapid product isolation, high atom economy, short reaction time, and scalability are the attractive features of the method. During the optimization of the reaction condition, we observed that DMSO, DMF, and acetone served one carbon to form the said compound besides their role as solvents. A plausible mechanism has been proposed based on the evidence obtained from LCMS analysis of the incomplete reaction mixture.
以级联方式开发多组分反应是化学家们长期以来一直关注的问题,目的是以更经济的方式获得有价值的有机材料。在本文中,我们介绍了一种以邻苯二甲醛(OPA)为原料,在二甲基亚砜(DMSO)溶剂中合成双态有机荧光体 11H-苯并[b]芴-11-酮的简单、经济可行的方法。该方法具有产品分离简单快速、原子经济性高、反应时间短和可扩展性强等优点。在优化反应条件的过程中,我们观察到 DMSO、DMF 和丙酮除了作为溶剂外,还可以作为形成上述化合物的一个碳。根据对不完全反应混合物进行 LCMS 分析所获得的证据,我们提出了一种合理的机理。
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引用次数: 0
Synthesis of 1,2,4-Triazole Derivatives via 1,3-Benzothiazole-2,5-Diamine Supported on Nanocellulose as Novel Recyclable Nano Catalyst 通过纳米纤维素作为新型可回收纳米催化剂支持的 1,3-苯并噻唑-2,5-二胺合成 1,2,4-三唑衍生物
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2270117
The study aimed to design a novel nanocatalyst, 1,3-Benzothiazole-2,5-diamine supported on nanocellulose (BTDA@CNC), which was characterized using various analytical techniques such as FT-IR, XRD, TGA, SEM, TEM, and CHN. The nanocatalyst was utilized for the synthesis of 1,2,4-triazole derivatives through a simple and efficient three-component reaction between aldehyde derivatives, semicarbazide, and ethanol. The protocol offered advantages such as a simple procedure, high yields, short reaction time, and an environmentally benign method. The nanocatalyst could be readily separated by filter and reused without significant loss of its catalytic efficiency. The synthesized compounds showed moderate activity against both Gram-positive and Gram-negative bacteria, and the antifungal properties of the candida albicans synthesized derivatives were also investigated.
该研究旨在设计一种新型纳米催化剂--纳米纤维素(BTDA@CNC)上支撑的 1,3-苯并噻唑-2,5-二胺,并利用傅立叶变换红外光谱、XRD、TGA、SEM、TEM 和 CHN 等多种分析技术对其进行了表征。利用该纳米催化剂,通过醛衍生物、半咔嗪和乙醇之间简单高效的三组分反应,合成了 1,2,4-三唑衍生物。该方法具有程序简单、产率高、反应时间短和对环境无害等优点。纳米催化剂可以很容易地通过过滤分离出来并重复使用,其催化效率不会明显降低。合成的化合物对革兰氏阳性菌和革兰氏阴性菌都有一定的活性,同时还研究了合成的白念珠菌衍生物的抗真菌特性。
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引用次数: 0
Synthesis and Insecticidal Activity of Novel Trifluoromethylbenzimidazole Linked N-Phenylamide Compounds 新型三氟甲基苯并咪唑连接 N-苯基酰胺化合物的合成与杀虫活性
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2273885
A series of new 5-(trifluoromethyl)-benzo[d]imidazole linked N-phenylamide compounds was designed and synthesized using 1-chloro-2-nitro-4-(trifluoromethyl)benzene as raw material via five steps. Their structures were confirmed by 1H NMR, 13C NMR and HRMS. The bioassay results indicated that some of them exhibited moderate insecticidal activity (>50% inhibition) against Mythimna separata and Nilaparvata lugens at 500 μg/mL.
以 1-氯-2-硝基-4-(三氟甲基)苯为原料,通过五个步骤设计并合成了一系列新的 5-(三氟甲基)-苯并[d]咪唑连接 N-苯基酰胺化合物。通过 1H NMR、13C NMR 和 HRMS 确认了这些化合物的结构。生物测定结果表明,其中一些化合物在 500 μg/mL 的浓度下对 Mythimna separata 和 Nilaparvata lugens 具有中等程度的杀虫活性(抑制率为 50%)。
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引用次数: 0
Computational and Experimental Investigation of Antibacterial Properties of Some Fluorinated Thioureas 一些氟化硫脲类化合物抗菌特性的计算和实验研究
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2270114
Herein, fluorinated thioureas with various substituents (F1-F3) were synthesized and characterized spectroscopically and analytically to investigate their properties as antibacterial agents. Prior to experimental studies, Density Functional Theory (DFT) modeling was performed at B3LYP/6-31G (d,p) to complement and offer comparative overview with the experimental findings. With regards to all theoretical analyses, the Frontier Molecular Orbital (FMO) demonstrated a desirable low HOMO-LUMO gap for all three designated derivatives, particularly F1 (1.60 eV), which is consistent with its GCRDs values, namely its high electronegativity and low hardness values that corresponds to low LUMO energy, suggesting higher bacterial activity. Agar diffusion assay was used for the preliminary screening of in-vitro antibacterial activity against pathogenic Gram-positive and Gram-negative bacteria. All three derivates successfully inhibit at least two bacterial strains (B. cereus, S. aureus), but none were able to penetrate into E. coli. The highest inhibition rate was exhibited by F3 at 33.33 ± 0.71% against S. aureus, whilst F1 only managed to gain 29.63 ± 0.00% of inhibition rate for the same bacterium. Meanwhile, the lowest penetration rate was recorded at 1.53 ± 0.35% by F2 against B. cereus.
本文合成了具有不同取代基(F1-F3)的含氟硫脲类化合物,并对其进行了光谱和分析表征,以研究其作为抗菌剂的特性。实验研究之前,在 B3LYP/6-31G (d,p)下进行了密度泛函理论(DFT)建模,以补充和提供与实验结果的比较概况。在所有理论分析中,前沿分子轨道(FMO)显示所有三种指定衍生物都具有理想的低 HOMO-LUMO 间隙,尤其是 F1(1.60 eV),这与其 GCRDs 值一致,即高电负性和低硬度值,这与低 LUMO 能量相对应,表明其具有更高的细菌活性。采用琼脂扩散法对致病性革兰氏阳性菌和革兰氏阴性菌进行了体外抗菌活性初步筛选。所有三种衍生物都成功抑制了至少两种细菌菌株(蜡样芽孢杆菌和金黄色葡萄球菌),但没有一种衍生物能渗透到大肠杆菌中。F3 对金黄色葡萄球菌的抑制率最高,为 33.33 ± 0.71%,而 F1 对同一细菌的抑制率仅为 29.63 ± 0.00%。同时,F2 对蜡样芽孢杆菌的渗透率最低,为 1.53 ± 0.35%。
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引用次数: 0
Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Seafood from Orashi River in Omoku, Rivers State of Nigeria and Human Health Risk Assessment 尼日利亚河流州奥莫库奥拉希河海产品中的多环芳香烃 (PAH) 评估及人类健康风险评估
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2270121
This study investigated the level of polycyclic aromatic hydrocarbons (PAHs) in seafood, namely, C. sapidus (Crab), P. mollusca (Mollusc), Cambarus sp. (Crayfish), Caridea (Shrimp) from Orashi River in Omoku, Rivers State of Nigeria. The PAHs in the samples were determined by gas chromatography–mass spectrometry. There was no variation in the relative level of PAHs congeners. The mean concentrations of individual PAHs decreased in the order: D(a,h)ant > Pyr > Fluth > B(g,h,i)p > B(a)A >  B(b)f > Ind (1,2, 3)pyr > B(a)pyr > Chr > B(k)flu > Ant > Flu > Phen > Aceth >  Ace > Nap. Anthracene contributed the highest PAHs values, with 51.685% in Caridea. The EDI values of B(a)P, Ʃ2PAH, Ʃ4PAH, Ʃ8PAH across all the seafood were within the maximum permissible limit recommended by EFSA; this suggests that the accumulation of the PAHs in the body system are within the permitted levels. Similarly, the HI of the PAHs congeners obtained from this study were less than 1 which is the safe limit recommended by USEPA. The total Excess Cancer Risk of the PAHs congeners obtained from this study exceeded the permissible maximum limit recommended by USEPA. This study suggests that the water may be contaminated with PAHs which have the tendency to cause non-carcinogenic and carcinogenic risk because of frequent and high consumption of seafoods.
本研究调查了尼日利亚河流州奥莫库奥拉希河(Orashi River)海产品,即螃蟹(C. sapidus)、软体动物(P. mollusca)、螯虾(Cambarus sp.)和虾(Caridea)中多环芳烃(PAHs)的含量。样品中的多环芳烃采用气相色谱-质谱法进行测定。多环芳烃同系物的相对含量没有变化。单个 PAHs 的平均浓度依次降低:D(a,h)ant > Pyr > Fluth > B(g,h,i)p > B(a)A > B(b)f > Ind (1,2, 3)pyr > B(a)pyr > Chr > B(k)flu > Ant > Flu > Phen > Aceth > Ace > Nap。蒽的多环芳烃含量最高,在 Caridea 中占 51.685%。所有海产品中 B(a)P、Ʃ2PAH、Ʃ4PAH、Ʃ8PAH 的 EDI 值均在欧洲食品安全局建议的最大允许限值范围内;这表明 PAHs 在人体系统中的累积量在允许水平之内。同样,这项研究得出的 PAHs 同系物的 HI 值也小于 1,这是美国环保局建议的安全限值。这项研究得出的 PAHs 同系物的总超额癌症风险超过了美国环保局建议的允许上限。这项研究表明,由于人们经常大量食用海产品,海水可能受到多环芳烃的污染,从而有可能导致非致癌和致癌风险。
{"title":"Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Seafood from Orashi River in Omoku, Rivers State of Nigeria and Human Health Risk Assessment","authors":"","doi":"10.1080/10406638.2023.2270121","DOIUrl":"10.1080/10406638.2023.2270121","url":null,"abstract":"<div><div>This study investigated the level of polycyclic aromatic hydrocarbons (PAHs) in seafood, namely, <em>C. sapidus</em> (Crab), <em>P. mollusca</em> (Mollusc), <em>Cambarus sp.</em> (Crayfish), <em>Caridea</em> (Shrimp) from Orashi River in Omoku, Rivers State of Nigeria. The PAHs in the samples were determined by gas chromatography–mass spectrometry. There was no variation in the relative level of PAHs congeners. The mean concentrations of individual PAHs decreased in the order: D(a,h)ant &gt; Pyr &gt; Fluth &gt; B(g,h,i)p &gt; B(a)A &gt;  B(b)f &gt; Ind (1,2, 3)pyr &gt; B(a)pyr &gt; Chr &gt; B(k)flu &gt; Ant &gt; Flu &gt; Phen &gt; Aceth &gt;  Ace &gt; Nap. Anthracene contributed the highest PAHs values, with 51.685% in <em>Caridea</em>. The EDI values of B(a)P, Ʃ<sub>2</sub>PAH, Ʃ<sub>4</sub>PAH, Ʃ<sub>8</sub>PAH across all the seafood were within the maximum permissible limit recommended by EFSA; this suggests that the accumulation of the PAHs in the body system are within the permitted levels. Similarly, the HI of the PAHs congeners obtained from this study were less than 1 which is the safe limit recommended by USEPA. The total Excess Cancer Risk of the PAHs congeners obtained from this study exceeded the permissible maximum limit recommended by USEPA. This study suggests that the water may be contaminated with PAHs which have the tendency to cause non-carcinogenic and carcinogenic risk because of frequent and high consumption of seafoods.</div></div>","PeriodicalId":20303,"journal":{"name":"Polycyclic Aromatic Compounds","volume":"44 9","pages":"Pages 5811-5828"},"PeriodicalIF":2.4,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135169403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Finding the Best Proposed Mechanism for Ugi Multi-Component Reaction by DFT Study 通过 DFT 研究寻找 Ugi 多组分反应的最佳拟议机理
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2273886
The one-pot four-component condensation of benzoic acid (R1), aniline (R2), benzaldehyde (R3), and 2-isocyano-2-methylpropane was investigated at the B3LYP/6-311G** level to explore the reaction mechanism as a theoretical study. All routes were studied and structure of intermediates (IM) was optimized and all of the respective transition states (TS) were found. The calculation results proved that the proposed mechanism consists of eight steps that rate determining the state is nucleophilic attack of isocyanide to benzaldehyde.
在 B3LYP/6-311G** 水平上研究了苯甲酸 (R1)、苯胺 (R2)、苯甲醛 (R3) 和 2-异氰基-2-甲基丙烷的一锅四组份缩合反应,作为理论研究探索反应机理。研究了所有反应路线,优化了中间产物(IM)的结构,并找到了所有相应的过渡态(TS)。计算结果证明,所提出的机理由八个步骤组成,其速率决定状态是异氰酸酯对苯甲醛的亲核攻击。
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引用次数: 0
Development of a New Manufacturing Route for Benzoylphenylureas and Their Key Intermediates 开发苯甲酰基苯基脲及其关键中间体的新制造路线
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2272013
A new and efficient manufacturing technology is disclosed in the present work for the preparation of benzoylphenylureas and their key intermediates. This new route significantly reduces the number of reaction steps from six to three, resulting in a streamlined process. Additionally, the overall yield is increased from 56% to over 69%. Compared to the original process route, the new manufacturing route has the advantages of fewer chemical steps, higher overall yield, less process safety hazard and environmental impact. Considering these factors, the new manufacturing route exhibits considerable potential for industrialization.
本研究揭示了一种新的高效生产技术,用于制备苯甲酰苯基脲及其关键中间体。这条新路线将反应步骤从六个大幅减少到三个,从而简化了工艺流程。此外,总产率从 56% 提高到 69% 以上。与原来的工艺路线相比,新的生产路线具有化学步骤更少、总收率更高、工艺安全隐患更少以及对环境影响更小等优点。考虑到这些因素,新的生产工艺路线具有相当大的工业化潜力。
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引用次数: 0
Numerous Heterocyclic Compounds with an Isonicotinic Moiety have Been Studied for Their Synthesis, Antibacterial, Anticancer, Docking Simulation, and DFT Characteristics 研究了许多具有异烟酸分子的杂环化合物的合成、抗菌、抗癌、Docking 模拟和 DFT 特性
IF 2.4 3区 化学 Q2 CHEMISTRY, ORGANIC Pub Date : 2024-10-20 DOI: 10.1080/10406638.2023.2266549
In this elucidation, we focused on the synthesis of isonicotinic heterocyclic molecules through reaction of isonicotinic acid hydrazide with phthalic anhydride, which produced an excellent yield of the equivalent N-(1,3-dioxoisoindolin-2-yl)isonicotinamide (3), and isonicotinic acid hydrazide can react easily with different aldehydes to form derivatives of Schiff bases. Furthermore, the reactivity of hydrazide with CS2 which cyclized in the presence of acid to give the corresponding 1,3,4-oxadiazole in derivative 7, and the presence of NH2NH2 produced a 1H-1,2,4-triazole derivative 9 that readily reacted with phenacyl bromide with the elimination of -HBr to produce 6-phenyl-3-(pyridine-4-yl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine (11). Hydrazide 1 reacts readily with many methylene compounds to produce a wide range of heterocycles. The presence of each produced heterocyclic was confirmed by spectral analysis investigation. Moreover, the synthesized compounds exhibited antimicrobial and antitumor activity against HepG2 liver tumor cells and neck squamous cell carcinoma (HNSCC) cancer cells, and the result was confirmed with different proteins through molecular docking simulation. Moreover, the optimization of the nicotinic compounds with DFT/B3LYP-631(G) basis set and determination of their physical descriptors correlated for its biological evaluation.
在这一阐释中,我们重点研究了异烟酸酰肼与邻苯二甲酸酐反应合成异烟酸杂环分子的过程,该反应产生了等效的N-(1,3-二氧代异吲哚啉-2-基)异烟酰胺(3),且异烟酸酰肼很容易与不同的醛反应生成希夫碱的衍生物。此外,酰肼与 CS2 反应,在酸的存在下环化生成相应的 1,3,4-噁二唑衍生物 7,在 NH2NH2 的存在下生成 1H-1,2,4-三唑衍生物 8、2,4-三唑衍生物 9,该衍生物很容易与苯甲酰溴反应并消除 -HBr 生成 6-苯基-3-(吡啶-4-基)-7H-[1,2,4]三唑并[3,4-b][1,3,4]噻二嗪 (11)。酰肼 1 很容易与许多亚甲基化合物发生反应,生成各种杂环。光谱分析研究证实了所生成的每个杂环的存在。此外,合成的化合物对 HepG2 肝肿瘤细胞和颈部鳞状细胞癌(HNSCC)癌细胞具有抗菌和抗肿瘤活性,并通过分子对接模拟与不同的蛋白质证实了这一结果。此外,利用 DFT/B3LYP-631(G) 基集对烟碱类化合物进行了优化,并确定了它们的物理描述因子,从而为其生物学评价提供了相关信息。
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引用次数: 0
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Polycyclic Aromatic Compounds
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