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An Efficient Synthesis of Bis-indolylindane-1,3-diones, Indan-1,3-diones, and Indene-1,3(2H)-denies Using [Hbim]BF 4 Ionic Medium. [Hbim] bf4离子介质高效合成双吲哚林丹-1,3-二酮、吲哚-1,3-二酮和吲哚-1,3(2H)-二酮
ISRN Organic Chemistry Pub Date : 2013-12-16 DOI: 10.1155/2013/528329
Mohammad Reza Poor Heravi
{"title":"An Efficient Synthesis of Bis-indolylindane-1,3-diones, Indan-1,3-diones, and Indene-1,3(2H)-denies Using [Hbim]BF 4 Ionic Medium.","authors":"Mohammad Reza Poor Heravi","doi":"10.1155/2013/528329","DOIUrl":"https://doi.org/10.1155/2013/528329","url":null,"abstract":"<p><p>We prepared a brand new molecule in one step for the synthesis of bis-indolylindane-1,3-dione and indan-1,3-diones from the reaction of ninhydrin and 3 substituted/unsubstituted indoles using [Hbim]BF4 ionic liquid in excellent yields. The method was also used for the synthesis of novel indene-1,3(2H)-denies derivatives. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"528329"},"PeriodicalIF":0.0,"publicationDate":"2013-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/528329","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32054040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
ZSM-5-SO3H: An Efficient Catalyst for Acylation of Sulfonamides Amines, Alcohols, and Phenols under Solvent-Free Conditions. ZSM-5-SO3H:无溶剂条件下磺胺类、胺类、醇类和酚类酰化的高效催化剂。
ISRN Organic Chemistry Pub Date : 2013-12-08 eCollection Date: 2013-01-01 DOI: 10.1155/2013/951749
Ahmad Reza Massah, Roozbeh Javad Kalbasi, Mahdiehsadat Khalifesoltani, Fariba Moshtagh Kordesofla
{"title":"ZSM-5-SO3H: An Efficient Catalyst for Acylation of Sulfonamides Amines, Alcohols, and Phenols under Solvent-Free Conditions.","authors":"Ahmad Reza Massah,&nbsp;Roozbeh Javad Kalbasi,&nbsp;Mahdiehsadat Khalifesoltani,&nbsp;Fariba Moshtagh Kordesofla","doi":"10.1155/2013/951749","DOIUrl":"https://doi.org/10.1155/2013/951749","url":null,"abstract":"<p><p>Sulfonamides amines, alcohols, and phenols were efficiently acylated with carboxylic acid anhydrides and chlorides using ZSM-5-SO3H as catalyst under mild and solvent-free conditions. Also, direct esterification of alcohols with carboxylic acids occurred readily in the presence of this catalyst. Different types of amides and esters were obtained in moderate to high yields and purity after a simple workup. No chromatographic separation is needed for isolation of the acylated product. The catalyst was recovered and reused for up to four times without a noticeable decrease in catalytic activity. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"951749"},"PeriodicalIF":0.0,"publicationDate":"2013-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/951749","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31994226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
New L-serine derivative ligands as cocatalysts for diels-alder reaction. 新型l -丝氨酸衍生物配体作为diels-alder反应的助催化剂。
ISRN Organic Chemistry Pub Date : 2013-12-05 eCollection Date: 2013-01-01 DOI: 10.1155/2013/217675
Carlos A D Sousa, José E Rodríguez-Borges, Cristina Freire
{"title":"New L-serine derivative ligands as cocatalysts for diels-alder reaction.","authors":"Carlos A D Sousa,&nbsp;José E Rodríguez-Borges,&nbsp;Cristina Freire","doi":"10.1155/2013/217675","DOIUrl":"https://doi.org/10.1155/2013/217675","url":null,"abstract":"<p><p>New L-serine derivative ligands were prepared and tested as cocatalyst in the Diels-Alder reactions between cyclopentadiene (CPD) and methyl acrylate, in the presence of several Lewis acids. The catalytic potential of the in situ formed complexes was evaluated based on the reaction yield. Bidentate serine ligands showed good ability to coordinate medium strength Lewis acids, thus boosting their catalytic activity. The synthesis of the L-serine ligands proved to be highly efficient and straightforward. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"217675"},"PeriodicalIF":0.0,"publicationDate":"2013-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/217675","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31994862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Solvent-Free Green and Efficient One-Pot Synthesis of Dihydropyrano[3,2-c]chromene Derivatives. 无溶剂绿色高效一锅合成二氢吡喃[3,2-c]铬衍生物。
ISRN Organic Chemistry Pub Date : 2013-10-24 eCollection Date: 2013-01-01 DOI: 10.1155/2013/185120
Shubha Jain, Deepika Rajguru, Balwant S Keshwal, Aman D Acharya
{"title":"Solvent-Free Green and Efficient One-Pot Synthesis of Dihydropyrano[3,2-c]chromene Derivatives.","authors":"Shubha Jain,&nbsp;Deepika Rajguru,&nbsp;Balwant S Keshwal,&nbsp;Aman D Acharya","doi":"10.1155/2013/185120","DOIUrl":"https://doi.org/10.1155/2013/185120","url":null,"abstract":"<p><p>A rapid, clean, and highly efficient method for synthesis of dihydropyrano[3,2-c]chromene derivatives by one-pot, three-component condensation of aromatic aldehydes, malononitrile, and 4-hydroxycoumarin using DABCO as catalyst in solvent-free neat conditions is described. The present method has the advantages of mild reaction conditions, short reaction times, easy isolation of products, and excellent yields. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"185120"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/185120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31907436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Synthesis and Biological Evaluation of Some [1,2,4]Triazolo[4,3-a]quinoxaline Derivatives as Novel Anticonvulsant Agents. 新型抗惊厥药[1,2,4]三唑啉[4,3-a]喹诺啉衍生物的合成及生物学评价。
ISRN Organic Chemistry Pub Date : 2013-09-12 eCollection Date: 2013-01-01 DOI: 10.1155/2013/587054
Mohamed Alswah, Adel Ghiaty, Ahmed El-Morsy, Kamal El-Gamal
{"title":"Synthesis and Biological Evaluation of Some [1,2,4]Triazolo[4,3-a]quinoxaline Derivatives as Novel Anticonvulsant Agents.","authors":"Mohamed Alswah,&nbsp;Adel Ghiaty,&nbsp;Ahmed El-Morsy,&nbsp;Kamal El-Gamal","doi":"10.1155/2013/587054","DOIUrl":"https://doi.org/10.1155/2013/587054","url":null,"abstract":"<p><p>2-([1,2,4]Triazolo[4,3-a]quinoxalin-4-ylthio)acetic acid hydrazide (10) was used as a precursor for the syntheses of novel quinoxaline derivatives with potential anticonvulsant properties. The newly synthesized compounds have been characterized by IR, (1)H NMR, and mass spectral data followed by elemental analysis. The anticonvulsant evaluation was carried out for eleven of the synthesized compounds using metrazol induced convulsions model and phenobarbitone sodium as a standard. Among this set of tested compounds, two of them (14, and 15b) showed the best anticonvulsant activities. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"587054"},"PeriodicalIF":0.0,"publicationDate":"2013-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/587054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31840658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
Chemical modification of polysaccharides. 多糖的化学改性。
ISRN Organic Chemistry Pub Date : 2013-09-10 DOI: 10.1155/2013/417672
Ian Cumpstey
{"title":"Chemical modification of polysaccharides.","authors":"Ian Cumpstey","doi":"10.1155/2013/417672","DOIUrl":"https://doi.org/10.1155/2013/417672","url":null,"abstract":"<p><p>This review covers methods for modifying the structures of polysaccharides. The introduction of hydrophobic, acidic, basic, or other functionality into polysaccharide structures can alter the properties of materials based on these substances. The development of chemical methods to achieve this aim is an ongoing area of research that is expected to become more important as the emphasis on using renewable starting materials and sustainable processes increases in the future. The methods covered in this review include ester and ether formation using saccharide oxygen nucleophiles, including enzymatic reactions and aspects of regioselectivity; the introduction of heteroatomic nucleophiles into polysaccharide chains; the oxidation of polysaccharides, including oxidative glycol cleavage, chemical oxidation of primary alcohols to carboxylic acids, and enzymatic oxidation of primary alcohols to aldehydes; reactions of uronic-acid-based polysaccharides; nucleophilic reactions of the amines of chitosan; and the formation of unsaturated polysaccharide derivatives. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":" ","pages":"417672"},"PeriodicalIF":0.0,"publicationDate":"2013-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/417672","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40260055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 208
An Eco-Friendly Improved Protocol for the Synthesis of Bis(3-indolyl)methanes Using Poly(4-vinylpyridinium)hydrogen Sulfate as Efficient, Heterogeneous, and Recyclable Solid Acid Catalyst. 以聚(4-乙烯基吡啶)硫酸氢为高效、多相、可回收固体酸催化剂合成双(3-吲哚基)甲烷的环保改进方案
ISRN Organic Chemistry Pub Date : 2013-09-02 eCollection Date: 2013-01-01 DOI: 10.1155/2013/616932
Janardhan Banothu, Rajitha Gali, Ravibabu Velpula, Rajitha Bavantula, Peter A Crooks
{"title":"An Eco-Friendly Improved Protocol for the Synthesis of Bis(3-indolyl)methanes Using Poly(4-vinylpyridinium)hydrogen Sulfate as Efficient, Heterogeneous, and Recyclable Solid Acid Catalyst.","authors":"Janardhan Banothu,&nbsp;Rajitha Gali,&nbsp;Ravibabu Velpula,&nbsp;Rajitha Bavantula,&nbsp;Peter A Crooks","doi":"10.1155/2013/616932","DOIUrl":"https://doi.org/10.1155/2013/616932","url":null,"abstract":"<p><p>Highly efficient and eco-friendly protocol for the synthesis of bis(3-indolyl)methanes by the electrophilic substitution reaction of indole with aldehydes catalyzed by poly(4-vinylpyridinium)hydrogen sulfate was described. Excellent yields, shorter reaction times, simple work-up procedure, avoiding hazardous organic solvents, and reusability of the catalyst are the most obvious advantages of this method. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"616932"},"PeriodicalIF":0.0,"publicationDate":"2013-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/616932","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31747116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Design, Synthesis, and In Vitro Antimicrobial Evaluation of Fused Pyrano[3,2-e]tetrazolo[1,5-c]pyrimidines and Diazepines. 融合吡喃并[3,2-e]四唑并[1,5-c]嘧啶和二氮杂卓的设计、合成和体外抗菌评估。
ISRN Organic Chemistry Pub Date : 2013-08-21 eCollection Date: 2013-01-01 DOI: 10.1155/2013/635384
Sankari Kanakaraju, P Sagar Vijay Kumar, Bethanamudi Prasanna, G V P Chandramouli
{"title":"Design, Synthesis, and In Vitro Antimicrobial Evaluation of Fused Pyrano[3,2-e]tetrazolo[1,5-c]pyrimidines and Diazepines.","authors":"Sankari Kanakaraju, P Sagar Vijay Kumar, Bethanamudi Prasanna, G V P Chandramouli","doi":"10.1155/2013/635384","DOIUrl":"10.1155/2013/635384","url":null,"abstract":"<p><p>A series of novel pyranochromene-containing tetrazoles fused with pyrimidinethiones, pyrimidines, and diazepines 3a-f, 4a-f, and 5a-f were synthesized by condensation of the corresponding tetrazoles 2a-f with carbon disulfide, benzaldehyde, and 4-methoxy phenacyl bromide, respectively. The compound 2a-f was obtained by reaction of pyrano[3,2-c]chromenes 1a-f with sodium azide. The structures of the newly synthesized compounds 2a-f to 5a-f were established on the basis of their elemental analyses, IR, (1)H NMR, (13)C NMR, and mass spectral data. All of the title compounds were subjected to in vitro antibacterial testing against four pathogenic strains and antifungal screening against two fungi. Preliminary results indicate that some of them exhibited promising activities and that they deserve more consideration as potential antimicrobials. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"635384"},"PeriodicalIF":0.0,"publicationDate":"2013-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3765769/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31747118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Antioxidant Activity of 2-Amino-5-methylthiazol Derivatives Containing 1,3,4-Oxadiazole-2-thiol Moiety. 含 1,3,4-恶二唑-2-硫醇分子的 2-氨基-5-甲基噻唑衍生物的合成与抗氧化活性。
ISRN Organic Chemistry Pub Date : 2013-08-19 eCollection Date: 2013-01-01 DOI: 10.1155/2013/620718
Kikkeri N Mohana, Chikkur B Pradeep Kumar
{"title":"Synthesis and Antioxidant Activity of 2-Amino-5-methylthiazol Derivatives Containing 1,3,4-Oxadiazole-2-thiol Moiety.","authors":"Kikkeri N Mohana, Chikkur B Pradeep Kumar","doi":"10.1155/2013/620718","DOIUrl":"10.1155/2013/620718","url":null,"abstract":"<p><p>A series of new 5-(2-amino-5-methylthiazol-4-yl)-1,3,4-oxadiazole-2-thiol derivatives 6(a-j) were designed and synthesized with various substituted aldehydes. The chemical structures were confirmed by elemental analyses, FT-IR, (1)H NMR, and mass spectral studies. The antioxidant activity of the synthesized compounds was evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH), hydroxyl, nitric oxide, and superoxide radical scavenging assay methods. Compounds 6a, 6e, and 6c showed significant radical scavenging potential due to the presence of electron donating substituent on substituted aldehydes. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"620718"},"PeriodicalIF":0.0,"publicationDate":"2013-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3765794/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31747117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Three Component Reaction: An Efficient Synthesis and Reactions of 3,4-Dihydropyrimidin-2(1H)-Ones and Thiones Using New Natural Catalyst. 三组分反应:新型天然催化剂下3,4-二氢嘧啶-2(1H)-酮和硫酮的高效合成及反应
ISRN Organic Chemistry Pub Date : 2013-08-18 eCollection Date: 2013-01-01 DOI: 10.1155/2013/706437
A M Elmaghraby, I A Mousa, A A Harb, M Y Mahgoub
{"title":"Three Component Reaction: An Efficient Synthesis and Reactions of 3,4-Dihydropyrimidin-2(1H)-Ones and Thiones Using New Natural Catalyst.","authors":"A M Elmaghraby,&nbsp;I A Mousa,&nbsp;A A Harb,&nbsp;M Y Mahgoub","doi":"10.1155/2013/706437","DOIUrl":"https://doi.org/10.1155/2013/706437","url":null,"abstract":"<p><p>Synthesis of 3,4-dihydropyrimidin-2(1H)-one and 3,4-dihydropyrimidin-2(1H)-thione derivatives from aldehydes, 1,3-dicarbonyl derivatives and urea or thiourea using granite and quartz as new, natural and reusable catalysts. Some of the 3,4-dihydropyrimidin-2(1H)-thione derivatives were used to prepare new heterocyclic compounds. The antimicrobial activity of selected examples of the synthesized compounds was tested and showed moderate activity. </p>","PeriodicalId":14730,"journal":{"name":"ISRN Organic Chemistry","volume":"2013 ","pages":"706437"},"PeriodicalIF":0.0,"publicationDate":"2013-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/706437","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31747120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
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