S. Patil, Manjusha B. Suryavanshi, D. Nagargoje, Siddhant V. Kokate
{"title":"Synthesis and Antimicrobial Evaluation of Some New Pyrazole Derivatives Containing Thiazole Scaffolds","authors":"S. Patil, Manjusha B. Suryavanshi, D. Nagargoje, Siddhant V. Kokate","doi":"10.3390/ecsoc-25-11661","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11661","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91519779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Islamov, A. Yusupova, L. Dzhemileva, U. Dzhemilev
{"title":"Stereoselective Synthesis and Cytotoxic Activity of Aromatic Polyether Macrodiolides Containing 1Z,5Z-Diene Moiety","authors":"I. Islamov, A. Yusupova, L. Dzhemileva, U. Dzhemilev","doi":"10.3390/ecsoc-25-11763","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11763","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83230574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: In the present work the synthesis and antimicrobial activity of new thiazole substituted 1,3,4-oxadiazole derivatives was achieved. The reaction of different thioamides with ethyl 4-chloro-3-oxobutanoate (4-chloro ethyl acetoacetate) gave ethyl 2(2-arylthiazol-4yl)acetate , which on subse-quent reaction with hydrazine hydrate in absolute ethanol afforded 2-(2-arylthiazol-4-yl)acetohy-drazide. 2-(2-arylthiazol-4-yl) acetohydrazide on reaction with CS 2 and KOH in aqueous ethanol cyclized to form 5-((2-arylthiazol-4-yl)methyl)-1,3,4-oxadiazole-2-thiol. Finally, 5-((2-arylthiazol-4-yl) methyl)-1,3,4-oxadiazole-2-thiol were further treated with α -halo ketones at room temperature to afford the target compounds . Most of the compounds showed good antibacterial as well as antifungal activity. 4-chloro-3-oxobuta-noate; α -halo ketones; antibacterial and antifungal activity
{"title":"Synthesis and Antimicrobial Screening of Some New Thiazole Substituted 1,3,4-Oxadiazole Derivatives","authors":"Siddhant V. Kokate, S. Patil","doi":"10.3390/ecsoc-25-11662","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11662","url":null,"abstract":": In the present work the synthesis and antimicrobial activity of new thiazole substituted 1,3,4-oxadiazole derivatives was achieved. The reaction of different thioamides with ethyl 4-chloro-3-oxobutanoate (4-chloro ethyl acetoacetate) gave ethyl 2(2-arylthiazol-4yl)acetate , which on subse-quent reaction with hydrazine hydrate in absolute ethanol afforded 2-(2-arylthiazol-4-yl)acetohy-drazide. 2-(2-arylthiazol-4-yl) acetohydrazide on reaction with CS 2 and KOH in aqueous ethanol cyclized to form 5-((2-arylthiazol-4-yl)methyl)-1,3,4-oxadiazole-2-thiol. Finally, 5-((2-arylthiazol-4-yl) methyl)-1,3,4-oxadiazole-2-thiol were further treated with α -halo ketones at room temperature to afford the target compounds . Most of the compounds showed good antibacterial as well as antifungal activity. 4-chloro-3-oxobuta-noate; α -halo ketones; antibacterial and antifungal activity","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84646128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: In the present work, the synthesis and biological activities of substituted 2-aminopyridine δ -lactone derivatives were achieved. 4,6,6-trimethyl-2-oxo-5,6-dihydro-2H-pyran-3-carbonitrile was synthesised from 4-hydroxy-4-methylpentan-2-one, followed by its transformation in enaminonitrile with DMFDMA. The antioxidant effects of substituted 2- aminopyridine δ -lactone derivatives were evaluated through DPPH assay and revealed a great antioxidant capacity. The antifungal and antibacterial activities were investigated by disc diffusion method against clinical Gram-nega-tive bacteria and against clinical fungi. The study shows moderate to very good antibacterial and antifungal activities for the new substituted 2- aminopyridine δ -lactone derivatives .
{"title":"Synthesis of 2-aminopyridine Lactones and Studies of Their Antioxidant, Antibacterial and Antifungal Properties","authors":"Fadila Salhi, N. Cheikh, D. Villemin, N. Bar","doi":"10.3390/ecsoc-25-11709","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11709","url":null,"abstract":": In the present work, the synthesis and biological activities of substituted 2-aminopyridine δ -lactone derivatives were achieved. 4,6,6-trimethyl-2-oxo-5,6-dihydro-2H-pyran-3-carbonitrile was synthesised from 4-hydroxy-4-methylpentan-2-one, followed by its transformation in enaminonitrile with DMFDMA. The antioxidant effects of substituted 2- aminopyridine δ -lactone derivatives were evaluated through DPPH assay and revealed a great antioxidant capacity. The antifungal and antibacterial activities were investigated by disc diffusion method against clinical Gram-nega-tive bacteria and against clinical fungi. The study shows moderate to very good antibacterial and antifungal activities for the new substituted 2- aminopyridine δ -lactone derivatives .","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88211048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microwave-Assisted Synthesis of Aryl Phosphonates and Tertiary Phosphine Oxides by the Hirao Reaction","authors":"Bianka Huszár, Z. Mucsi, G. Keglevich","doi":"10.3390/ecsoc-25-11697","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11697","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73867043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Vázquez-Tato, F. Meijide, J. V. Tato, J. Seijas
{"title":"Computational Study of P, S and Se Analogues of Naphthalenediimide as Cathode Components in Batteries","authors":"M. Vázquez-Tato, F. Meijide, J. V. Tato, J. Seijas","doi":"10.3390/ecsoc-25-11696","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11696","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74190648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdullah Al-Hemyari, Muna S. Bufaroosha, T. Thiemann
: In search of new thermotropic, photoswitchable materials, a number of 4′ -alkoxy-4- (ω -cinnamoylalkoxy)azobenzenes were prepared. The synthetic procedure included O -alkylation of 4-nitrophenol, followed by reduction of the nitro group (H 2 , Pd/C), diazotization of the aniline and subsequent reaction with ω -hydroxyalkoxybenzenes, followed by a modified Appel-type esterification (BrCCl 3 , PPh 3 ). The photochemical behavior of the substances was investigated.
{"title":"Synthesis of 4′-Alkoxy-4-(ω-cinnamoylalkoxy)azobenzenes and Their Photoswitchable Behavior","authors":"Abdullah Al-Hemyari, Muna S. Bufaroosha, T. Thiemann","doi":"10.3390/ecsoc-25-11685","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11685","url":null,"abstract":": In search of new thermotropic, photoswitchable materials, a number of 4′ -alkoxy-4- (ω -cinnamoylalkoxy)azobenzenes were prepared. The synthetic procedure included O -alkylation of 4-nitrophenol, followed by reduction of the nitro group (H 2 , Pd/C), diazotization of the aniline and subsequent reaction with ω -hydroxyalkoxybenzenes, followed by a modified Appel-type esterification (BrCCl 3 , PPh 3 ). The photochemical behavior of the substances was investigated.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75953916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Ghafuri, Yegane Rostami, Nastaran Ghanbari, B. Abbasi, Zeinab Tajik, Nasim Amiri Ramsheh
: Here, novel melamine functionalized gum (gum@Melamine@Cu(II)) is synthesized and its catalytic performance is investigated in the oxidation of benzyl alcohols. The gum@Melamine was prepared through the grafting of 3-chloropropyltrimethoxysilane onto gum, followed by treatment with melamine. The synthesized gum@Melamine@Cu(II) was used to achieve an effective and selective method for the oxidation of different alcohols. All substituted benzyl alcohols were oxidized in good yields under mild conditions at room temperature. This gum@Melamine@Cu(II) has great stability and could be recycled five times without noteworthy loss of activity.
{"title":"Gum-Supported Melamine: A Recyclable Reagent for Selective and Metal-Free Oxidation of Benzyl Alcohols","authors":"H. Ghafuri, Yegane Rostami, Nastaran Ghanbari, B. Abbasi, Zeinab Tajik, Nasim Amiri Ramsheh","doi":"10.3390/ecsoc-25-11718","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11718","url":null,"abstract":": Here, novel melamine functionalized gum (gum@Melamine@Cu(II)) is synthesized and its catalytic performance is investigated in the oxidation of benzyl alcohols. The gum@Melamine was prepared through the grafting of 3-chloropropyltrimethoxysilane onto gum, followed by treatment with melamine. The synthesized gum@Melamine@Cu(II) was used to achieve an effective and selective method for the oxidation of different alcohols. All substituted benzyl alcohols were oxidized in good yields under mild conditions at room temperature. This gum@Melamine@Cu(II) has great stability and could be recycled five times without noteworthy loss of activity.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81009252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Djamila Benzenine, Z. Kibou, A. Berrichi, R. Bachir, N. Choukchou-Braham
{"title":"New Synthesis of Imidazo[1,2-a]pyrimidines Catalyzed Using Gold Nanoparticles","authors":"Djamila Benzenine, Z. Kibou, A. Berrichi, R. Bachir, N. Choukchou-Braham","doi":"10.3390/ecsoc-25-11690","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11690","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77948463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Ghafuri, S. Moradi, Nastaran Ghanbari, Haniyeh Dogari, Mostafa Ghafori
{"title":"Efficient and Green Synthesis of Acridinedione Derivatives Using Highly Fe3O4@Polyaniline-SO3H as Efficient Heterogeneous Catalyst","authors":"H. Ghafuri, S. Moradi, Nastaran Ghanbari, Haniyeh Dogari, Mostafa Ghafori","doi":"10.3390/ecsoc-25-11719","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11719","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86378683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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