Pub Date : 2019-12-31DOI: 10.1525/9780520945180-057
Sarma A. Pidaparthi
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Pub Date : 2019-12-31DOI: 10.1525/9780520945180-019
A. Miranda
Here, an efficient and biodegradable catalytic system prepared through a simple procedure is presented by using chitosan (Cs), epichlorohydrin (ECH) and trimesic acid (TMA). The obtained bio-based Cs/ECH-TMA was characterized by using different spectroscopic and analytical methods. The Cs-ECH-TMA biopolymeric materials were used, as a bifunctional heterogeneous and green catalyst, for efficient synthesis of biologically-active scaffolds including polyhydroquinolines (PHQs) and acridinediones through Hantzsch reaction in a one-pot reaction. Both PHQs and acridinediones were synthesized in the presence of heterogeneous Cs/ECH-TMA catalyst from their corresponding substrates in EtOH under reflux conditions in high to quantitative yields. The Cs/ECH-TMA catalyst is recyclable and can be reused at least five times.
{"title":"P'","authors":"A. Miranda","doi":"10.1525/9780520945180-019","DOIUrl":"https://doi.org/10.1525/9780520945180-019","url":null,"abstract":"Here, an efficient and biodegradable catalytic system prepared through a simple procedure is presented by using chitosan (Cs), epichlorohydrin (ECH) and trimesic acid (TMA). The obtained bio-based Cs/ECH-TMA was characterized by using different spectroscopic and analytical methods. The Cs-ECH-TMA biopolymeric materials were used, as a bifunctional heterogeneous and green catalyst, for efficient synthesis of biologically-active scaffolds including polyhydroquinolines (PHQs) and acridinediones through Hantzsch reaction in a one-pot reaction. Both PHQs and acridinediones were synthesized in the presence of heterogeneous Cs/ECH-TMA catalyst from their corresponding substrates in EtOH under reflux conditions in high to quantitative yields. The Cs/ECH-TMA catalyst is recyclable and can be reused at least five times.","PeriodicalId":11213,"journal":{"name":"Dictionary of Upriver Halkomelem","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75190702","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}
Pub Date : 1921-12-31DOI: 10.1515/9783110608144-017
A. Colubi, N. Corral, M. T. Loَpez, M. A. Lubiano, M. Montenegro
R. Aliev (Baku, Azerbaijan) M. Jamshidi (Albuquerque, USA) A. Ralescu (Cincinnati, USA) M. Anvari (Berkeley, USA) Y. B. Jun (Chinju, South Korea) D. Ralescu (Cincinnati, USA) J. Buckley (Birmingham, USA) L. Koczy (Budapest, Hungary) N. Sadati (Tehran, Iran) P. Corsini (Udine, Italy) Y. M. Liu (Chengdu, China) F. G. Shi (Beijing, China) B. De Baets (Gent, Belgium) M. Mukaidono (Kawasaki, Japan) A. Sostak (Riga, Latvia) P. Diamond (Brisbane, Australia) N. R. Pal (Calcutta, India) M. Sugeno (Kyoto, Japan) D. Dubois (Toulouse, France) I. Perfilieva (Ostrava, Czech) I. B. Turksen (Toronto, Canada) S. C. Fang (Raleigh, USA) H. Prade (Toulouse, France)
{"title":"P","authors":"A. Colubi, N. Corral, M. T. Loَpez, M. A. Lubiano, M. Montenegro","doi":"10.1515/9783110608144-017","DOIUrl":"https://doi.org/10.1515/9783110608144-017","url":null,"abstract":"R. Aliev (Baku, Azerbaijan) M. Jamshidi (Albuquerque, USA) A. Ralescu (Cincinnati, USA) M. Anvari (Berkeley, USA) Y. B. Jun (Chinju, South Korea) D. Ralescu (Cincinnati, USA) J. Buckley (Birmingham, USA) L. Koczy (Budapest, Hungary) N. Sadati (Tehran, Iran) P. Corsini (Udine, Italy) Y. M. Liu (Chengdu, China) F. G. Shi (Beijing, China) B. De Baets (Gent, Belgium) M. Mukaidono (Kawasaki, Japan) A. Sostak (Riga, Latvia) P. Diamond (Brisbane, Australia) N. R. Pal (Calcutta, India) M. Sugeno (Kyoto, Japan) D. Dubois (Toulouse, France) I. Perfilieva (Ostrava, Czech) I. B. Turksen (Toronto, Canada) S. C. Fang (Raleigh, USA) H. Prade (Toulouse, France)","PeriodicalId":11213,"journal":{"name":"Dictionary of Upriver Halkomelem","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1921-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72767768","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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