Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarins
4-Methyl-8-formyl- and 4-phenyl-8-formyl coumarins have been synthesized by Pechmann reaction using oxalic acid catalyst for the first time. 4-Propyl-7-hydroxy-, and 4-methyl-7-methoxy coumarins have also been accomplished by this catalyst for the first time. They have been characterizated by IR, 1H...
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| Format: | Article |
| Language: | English |
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Chemical Society of Ethiopia
2018-04-01
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| Series: | Bulletin of the Chemical Society of Ethiopia |
| Subjects: | |
| Online Access: | https://www.ajol.info/index.php/bcse/article/view/169545 |
| _version_ | 1818572089323421696 |
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| author | H. Ç. Onar B. A.Vardar |
| author_facet | H. Ç. Onar B. A.Vardar |
| author_sort | H. Ç. Onar |
| collection | DOAJ |
| description | 4-Methyl-8-formyl- and 4-phenyl-8-formyl coumarins have been synthesized by Pechmann reaction using oxalic acid catalyst for the first time. 4-Propyl-7-hydroxy-, and 4-methyl-7-methoxy coumarins have also been accomplished by this catalyst for the first time. They have been characterizated by IR, 1H-NMR, 13C-NMR, mass and elemental analysis. Furthermore, the obtained coumarins were compared according to antioxidant activity by DPPH method. |
| first_indexed | 2024-12-14T18:52:45Z |
| format | Article |
| id | doaj.art-89551b886b4a45dc9cf6b317135159e4 |
| institution | Directory Open Access Journal |
| issn | 1011-3924 1726-801X |
| language | English |
| last_indexed | 2024-12-14T18:52:45Z |
| publishDate | 2018-04-01 |
| publisher | Chemical Society of Ethiopia |
| record_format | Article |
| series | Bulletin of the Chemical Society of Ethiopia |
| spelling | doaj.art-89551b886b4a45dc9cf6b317135159e42022-12-21T22:51:12ZengChemical Society of EthiopiaBulletin of the Chemical Society of Ethiopia1011-39241726-801X2018-04-01321175178https://dx.doi.org/10.4314/bcse.v32i1.17Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarinsH. Ç. OnarB. A.Vardar4-Methyl-8-formyl- and 4-phenyl-8-formyl coumarins have been synthesized by Pechmann reaction using oxalic acid catalyst for the first time. 4-Propyl-7-hydroxy-, and 4-methyl-7-methoxy coumarins have also been accomplished by this catalyst for the first time. They have been characterizated by IR, 1H-NMR, 13C-NMR, mass and elemental analysis. Furthermore, the obtained coumarins were compared according to antioxidant activity by DPPH method.https://www.ajol.info/index.php/bcse/article/view/169545CoumarinAntioxidant activityDPPH method |
| spellingShingle | H. Ç. Onar B. A.Vardar Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarins Bulletin of the Chemical Society of Ethiopia Coumarin Antioxidant activity DPPH method |
| title | Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarins |
| title_full | Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarins |
| title_fullStr | Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarins |
| title_full_unstemmed | Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarins |
| title_short | Synthesis and antioxidant activity of novel 8-formyl-4-substitued coumarins |
| title_sort | synthesis and antioxidant activity of novel 8 formyl 4 substitued coumarins |
| topic | Coumarin Antioxidant activity DPPH method |
| url | https://www.ajol.info/index.php/bcse/article/view/169545 |
| work_keys_str_mv | AT hconar synthesisandantioxidantactivityofnovel8formyl4substituedcoumarins AT bavardar synthesisandantioxidantactivityofnovel8formyl4substituedcoumarins |