Synthesis and antioxidant evaluation of some new allobetulin esters; Rasayan Journal of Chemistry [RJC]; Vol. 12, iss. 3
| Parent link: | Rasayan Journal of Chemistry [RJC] Vol. 12, iss. 3.— 2019.— [P. 1032-1037] |
|---|---|
| مؤلفون مشاركون: | , |
| مؤلفون آخرون: | , , , , |
| الملخص: | Title screen A series of 3-O-haloacyl allobetulin were synthesized via acylation of allobetulin by haloacetic (trifluro,difluorochloro, trichloro, monochloro) acid in CHCl3 at 70 °C. The structure of allobetulin was modified at C-3 position, and esters 3a-d were obtained in high yields. Moreover the reactions do not need a catalyst. The structures of all synthesized compounds were confirmed by various spectroscopic methods (IR and NMR) and tested for antioxidant activity. |
| اللغة: | الإنجليزية |
| منشور في: |
2019
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://dx.doi.org/10.31788/RJC.2019.1235159 |
| التنسيق: | الكتروني فصل الكتاب |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661340 |
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| 200 | 1 | |a Synthesis and antioxidant evaluation of some new allobetulin esters |f S. Arrous [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 16 tit.] | ||
| 330 | |a A series of 3-O-haloacyl allobetulin were synthesized via acylation of allobetulin by haloacetic (trifluro,difluorochloro, trichloro, monochloro) acid in CHCl3 at 70 °C. The structure of allobetulin was modified at C-3 position, and esters 3a-d were obtained in high yields. Moreover the reactions do not need a catalyst. The structures of all synthesized compounds were confirmed by various spectroscopic methods (IR and NMR) and tested for antioxidant activity. | ||
| 461 | |t Rasayan Journal of Chemistry [RJC] | ||
| 463 | |t Vol. 12, iss. 3 |v [P. 1032-1037] |d 2019 | ||
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a triterpene | |
| 610 | 1 | |a betulin | |
| 610 | 1 | |a allobetulin | |
| 610 | 1 | |a esterification | |
| 610 | 1 | |a haloacetic acid | |
| 610 | 1 | |a antioxidant | |
| 610 | 1 | |a тритерпеновые сапонины | |
| 610 | 1 | |a бетулин | |
| 610 | 1 | |a этерификация | |
| 610 | 1 | |a антиоксиданты | |
| 701 | 1 | |a Arrous |b S. |g Salah | |
| 701 | 1 | |a Boudebouz |b I. |g Imene | |
| 701 | 1 | |a Voronova |b O. A. |c chemist |c Assistant of Tomsk Polytechnic University, Candidate of chemical sciences |f 1979- |g Olesya Aleksandrovna |3 (RuTPU)RU\TPU\pers\32169 |9 16170 | |
| 701 | 1 | |a Plotnikov |b E. V. |c chemist |c Engineer of Tomsk Polytechnic University |f 1983- |g Evgeny Vladimirovich |3 (RuTPU)RU\TPU\pers\32469 | |
| 701 | 1 | |a Bakibaev |b A. A. |c Russian chemist |c Professor of TPU, doctor of chemical sciences |f 1960- |g Abdigali Abdimanapovich |3 (RuTPU)RU\TPU\pers\27851 | |
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