Croatica Chemica Acta最新文献_第10页

Ultrasound-assisted and Efficient Knoevenagel Condensation Reaction Catalyzed by Silica Sodium Carbonate Nanoparticles 超声辅助纳米二氧化硅-碳酸钠催化Knoevenagel缩合反应

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2018-01-02 DOI: 10.5562/CCA3261

Yaghoub Pourshojaei, Maryam Nikzad, K. Eskandari, M. Darijani, A. Hassanzadeh, E. Faghih-Mirzaei, A. Asadipour

{"title":"Ultrasound-assisted and Efficient Knoevenagel Condensation Reaction Catalyzed by Silica Sodium Carbonate Nanoparticles","authors":"Yaghoub Pourshojaei, Maryam Nikzad, K. Eskandari, M. Darijani, A. Hassanzadeh, E. Faghih-Mirzaei, A. Asadipour","doi":"10.5562/CCA3261","DOIUrl":"https://doi.org/10.5562/CCA3261","url":null,"abstract":"An efficient and ultrasound-assisted route to the synthesis of arylidene malononitriles/methylcianoor ethylciano acetates in a onepot reaction catalyzed by silica sodium carbonate nanoparticles (SSC NPs) is described. In this reaction, SSC NPs demonstrated high efficiency as catalyst to obtain target products. By this achievement, a wide range of α,β-unsaturated compounds as Knoevenagel condensation products with good to excellent yields are obtained from reaction between numerous arylaldehydes, and malononitrile, methyl cianoacetate or ethyl cianoacetate. Target products which prepared in high yield and high purity can be candidate as important biologically active molecules. This method is an easy, cheap, rapid and highly efficient for the synthesis of desired products. In addition, capability of catalyst to separate from reaction mixture and reuse in further runs and being compatible with green chemistry are considered as other advantages of this procedure. All products were deduced from their FT-IR and FT-NMR spectroscopic and elemental analysis data.","PeriodicalId":10822,"journal":{"name":"Croatica Chemica Acta","volume":"91 1","pages":"19-28"},"PeriodicalIF":0.3,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5562/CCA3261","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42359940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 7

Antioxidant, Antimicrobial and Antiproliferative Activities of Synthesized 2,2,5,5-Tetramethyl-9-aryl-3,4,5,6,7,9-hexahydro-1 H -xanthene-1,8(2 H )-dione Derivatives 合成的2,2,5-四甲基-9-芳基-3,4,5,6,7,9-六氢-1H-杂吨-1,8（2H）-二酮衍生物的抗氧化、抗菌和抗增殖活性

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2018-01-02 DOI: 10.5562/CCA3225

S. Zukić, E. Veljović, S. Špirtović-Halilović, Samija Muratović, A. Osmanović, S. Trifunović, I. Novaković, D. Završnik

{"title":"Antioxidant, Antimicrobial and Antiproliferative Activities of Synthesized 2,2,5,5-Tetramethyl-9-aryl-3,4,5,6,7,9-hexahydro-1 H -xanthene-1,8(2 H )-dione Derivatives","authors":"S. Zukić, E. Veljović, S. Špirtović-Halilović, Samija Muratović, A. Osmanović, S. Trifunović, I. Novaković, D. Završnik","doi":"10.5562/CCA3225","DOIUrl":"https://doi.org/10.5562/CCA3225","url":null,"abstract":"Ten biologically active 2,2,5,5-tetramethyl-9-aryl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione derivatives were synthesized and their structures were confirmed by IR, 1H and 13C NMR spectroscopy and mass spectrometry. Synthesized compounds were scanned for their antioxidant, antimicrobial and antiproliferative activity. Antibacterial activity was tested by the diffusion and dilution method against Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, while antifungal activity was tested against Candida albicans and Saccharomyces cerevisiae. Antiproliferative activity was tested against HeLa (cervical carcinoma), SW620 (colorectal adenocarcinoma, metastatic), hepatocellular carcinoma (HEpG2), lung carcinoma cells (A549) and mouse embryo fibroblast cell line (3T3). The best antioxidant activity showed compound 2 with two hydroxy groups substituted on phenyl ring in positions 2' and 3'. The best antimicrobial activity of all synthesized compounds showed compound 8, while the best antiproliferative activity showed compound 6. Results signify the importance of xanthene-1,8-dione derivatives as potential antioxidant and antiproliferative agents.","PeriodicalId":10822,"journal":{"name":"Croatica Chemica Acta","volume":"23 6","pages":"1-9"},"PeriodicalIF":0.3,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41244856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 13

Lignocellulosic Materials as Dye Adsorbents: Adsorption of Methylene Blue and Congo Red on Brewers’ Spent Grain 木质纤维素材料作为染料吸附剂:亚甲基蓝和刚果红对啤酒废粮的吸附

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2018-01-02 DOI: 10.5562/CCA3289

Antonija Kezerle, Natalija Velić, D. Hasenay, D. Kovačević

引用次数: 31

Synthesis of Chromen-2-one, Pyrano[3,4-c]chromene and Pyridino[3,4-c]chromene Derivatives as Potent Antimicrobial Agents 高效抗菌剂铬-2- 1、吡喃[3,4-c]铬及吡喃[3,4-c]铬衍生物的合成

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2018-01-02 DOI: 10.5562/CCA3266

Sawsan A. Fouad, S. Hessein, S. Abbas, A. Farrag, Y. Ammar

引用次数: 14

Chemical Composition and Antioxidant Activity of Essential Oil Obtained from Bitter Orange Peel (Citrus aurantium L.) Using Two Methods 苦橙皮精油的化学成分及抗氧化活性研究使用两种方法

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2018-01-02 DOI: 10.5562/CCA3294

Mila Radan, Antonija Parčina, F. Burčul

引用次数: 21

Učenici se sjećaju Siniše Maričića (1926.–2017.): Uspravan do kraja Učenici se sjećaju Siniše Maričića（1926年-2017年）：Uspravan do kraja

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2018-01-02 DOI: 10.5562/CCA3358HR

Stanimir Vuk-Pavlović, Bojan Benko, Vesna Svetličić

引用次数: 0

Synthesis of New Azoles and Azolopyrimidines Incorporating Morpholine Moiety as Potent Anti-Tumor Agents 新型含吗啉基团的唑类和唑吡脒的合成

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2018-01-02 DOI: 10.5562/CCA3279

Sobhi M. Gomha, Zeinab A. Muhammad, Hassan M. Abdel‐aziz, E. E. El-Arab

{"title":"Synthesis of New Azoles and Azolopyrimidines Incorporating Morpholine Moiety as Potent Anti-Tumor Agents","authors":"Sobhi M. Gomha, Zeinab A. Muhammad, Hassan M. Abdel‐aziz, E. E. El-Arab","doi":"10.5562/CCA3279","DOIUrl":"https://doi.org/10.5562/CCA3279","url":null,"abstract":"A new series of morpholinyl-chalcones 2a–d was prepared by reaction of 2-oxo-N,4-diarylbut-3-enehydrazonoyl chlorides 1a–d with morpholine. These chalcones were used as a building block for constructing pyrazoles 3a–d and 3,4-dihydropyrimidine-2(1H)-thione 6 via their reaction with phenylhydrazine and thiourea, respectively. Moreover, a new series of azolopyrimidine derivatives 11a,b, 15, 17, 19, and 21 incorporating morpholine moiety were synthesized by reaction of 1-morpholino-4-phenyl-1-(2-phenylhydrazono)but-3-en-2-one (2a) with a number of heterocyclic amines in the presence of a catalytic amount of acetic acid. The assigned structures for all the newly synthesized compounds were confirmed on the basis of elemental analyses and spectral data and the mechanisms of their formation were also discussed. All the synthesized compounds were tested for in vitro activities against two antitumor cell lines, human lung cancer (A-549) and human hepatocellular carcinoma (HepG-2) compared with the employed standard antitumor drug (cisplatin) and the results revealed that compounds 6, 8c and 17 have promising activities compared with cisplatin.","PeriodicalId":10822,"journal":{"name":"Croatica Chemica Acta","volume":"91 1","pages":"43-51"},"PeriodicalIF":0.3,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5562/CCA3279","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47351611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 5

Mixed Ion-Polaron Glasses as New Cathode Materials 作为新型阴极材料的混合离子极化子玻璃

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2017-12-29 DOI: 10.5562/CCA3330

Juraj Nikolić, A. Šantić, L. Pavić, D. Pajić, P. Mošner, L. Koudelka, A. Milanković

{"title":"Mixed Ion-Polaron Glasses as New Cathode Materials","authors":"Juraj Nikolić, A. Šantić, L. Pavić, D. Pajić, P. Mošner, L. Koudelka, A. Milanković","doi":"10.5562/CCA3330","DOIUrl":"https://doi.org/10.5562/CCA3330","url":null,"abstract":"Electrical transport in mixed ion-polaron glasses has been investigated in four series of glasses containing transition metal oxides (TMO) namely WO3/MoO3, and Na+/Ag+ ions with the composition xWO3- (30-0.5x)Na2O-(30-0.5x)ZnO-40P2O5, xWO3-(30- 0.5x)Ag2O-(30-0.5x)ZnO-40P2O5, xMoO3-(30-0.5x)Na2O- (30-0.5x)ZnO-40P2O5, and xMoO3-(30-0.5x)Ag2O-(30- 0.5x)ZnO-40P2O5, 0 ≤ x ≤ 60 (mol%). The DC conductivity of Na-glasses up to 30 mol% of WO3 and MoO3 is almost identical due to the dominance of ionic conductivity. In this compositional region, the introduction of tungstate and molybdate units increases the mobility of sodium ions and compensates the decrease in sodium number density. On the other hand, with increasing WO3 and MoO3 content and decreasing Ag+ ion concentration in Ag-glasses the DC conductivity decreases for few orders of magnitude. A significant difference in conductivity is observed for glasses with higher WO3 and MoO3 content. While for glasses containing WO3 the conductivity rapidly increases due to a huge polaronic contribution indicating a turnover from predominantly ionic to polaronic transport, the conductivity for MoO3- glasses decreases in the entire mixed compositional range suggesting dominant ionic transport. The changes in the conduction mechanism with the systematic alternation of the glass composition have been analyzed in correlation with the structural modifications and variations of molybdenum and tungsten in different oxidation states.","PeriodicalId":10822,"journal":{"name":"Croatica Chemica Acta","volume":"90 1","pages":"657-665"},"PeriodicalIF":0.3,"publicationDate":"2017-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5562/CCA3330","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44127980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Synthesis of Fluorescent Diphenylanthracene-Based Calix[4]arene Derivatives and their Complexation with Alkali Metal Cations 荧光二苯基蒽基杯[4]芳烃衍生物的合成及其与碱金属阳离子的络合反应

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2017-12-29 DOI: 10.5562/CCA3308

M. Bakić, K. Leko, N. Cindro, T. Portada, T. Hrenar, Leo Frkanec, Gordan Horvat, J. Požar, V. Tomišić

{"title":"Synthesis of Fluorescent Diphenylanthracene-Based Calix[4]arene Derivatives and their Complexation with Alkali Metal Cations","authors":"M. Bakić, K. Leko, N. Cindro, T. Portada, T. Hrenar, Leo Frkanec, Gordan Horvat, J. Požar, V. Tomišić","doi":"10.5562/CCA3308","DOIUrl":"https://doi.org/10.5562/CCA3308","url":null,"abstract":"Two novel fluorescent calix[4]arenes comprising diphenylanthracene moiety at the lower rim were synthetized and their complexation with alkali metal cations in acetonitrile/dichloromethane and methanol/dichloromethane mixtures (φ = 0.5) was studied experimentally and by classical molecular dynamics and quantum chemical calculations. The monosubstituted calixarene derivative (L1) proved to be a poor cation receptor, whereas the ester-based macrocycle (L2) exhibited rather high affinity towards lithium, sodium and potassium cations, particularly in MeCN/CH2Cl2. All complexation reactions were enthalpically controlled, whereby the overall stability was the largest in the case of sodium complex. The computational investigations provided an additional insight into the complexation properties and structures of complex species. The molecular dynamics simulations indicated the occurrence of inclusion of solvent molecules in the calixarene hydrophobic cavity of the free and complexed ligand, which was found to significantly affect the complexation equilibria.","PeriodicalId":10822,"journal":{"name":"Croatica Chemica Acta","volume":"90 1","pages":"711-725"},"PeriodicalIF":0.3,"publicationDate":"2017-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43737025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Effect of Methoxy Substitution on Supramolecular Arrangement of Borondifluorides of 2'-Hydroxy Chalcones and their Solid-State NIR Fluorescence 甲氧基取代对2'-羟基查尔酮硼二氟化物超分子排列及其固态近红外荧光的影响

IF 0.3 4区化学

Croatica Chemica Acta Pub Date : 2017-12-29 DOI: 10.5562/CCA3241

A. D'Aléo, E. Zaborova, F. Fages

引用次数: 4