The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide
The action of 2,3-dimethylbenzothiazol-3-ium iodide on 1H-benzo[f]chromenes containing an acceptor substituent in the β-position to the oxygen atom in the presence of triethylamine results in the opening of the pyran ring and the formation of [(2E,4Z)-4-(3-methyl-benzothiazol-2(3H)-ylidene)but-2-en-...
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| स्वरूप: | Статья |
| भाषा: | English |
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2023
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| ऑनलाइन पहुंच: | https://dspace.ncfu.ru/handle/20.500.12258/22265 |
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ir-20.500.12258-222652023-01-26T15:00:59Z The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide Demidov, O. P. Демидов, О. П. 2,3-dimethylbenzothiazol-3-ium iodide Electron-deficient 1H-benzo[f]chromenes Push-pull 1,3-dienes Michael reaction Thiacyanine dyes The action of 2,3-dimethylbenzothiazol-3-ium iodide on 1H-benzo[f]chromenes containing an acceptor substituent in the β-position to the oxygen atom in the presence of triethylamine results in the opening of the pyran ring and the formation of [(2E,4Z)-4-(3-methyl-benzothiazol-2(3H)-ylidene)but-2-en-1-yl]naphthalen-2-ols. In the case of 1-aryl-2-nitro-1H-benzo[f]chromenes, 3-methyl-2-[(1E,3Z)-3-(3-methylbenzothiazol-2(3H)-ylidene)prop-1-en-1-yl]benzothiazol-3-ium iodide was isolated. The resulting compounds containing the merocyanine chromophore are of interest as dyes and fluorescent labels. 2023-01-26T15:00:14Z 2023-01-26T15:00:14Z 2022 Статья Korzhenko, K.S., Osyanin, V.А., Osipov, D.V., Rashchepkina, D.А., Demidov, O.P., Klimochkin, Y.N. The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide // Chemistry of Heterocyclic Compounds. - 2022. - 58 (11), pp. 634-638. - DOI: 10.1007/s10593-022-03137-z http://hdl.handle.net/20.500.12258/22265 en Chemistry of Heterocyclic Compounds application/pdf application/pdf |
| institution |
СКФУ |
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Репозиторий |
| language |
English |
| topic |
2,3-dimethylbenzothiazol-3-ium iodide Electron-deficient 1H-benzo[f]chromenes Push-pull 1,3-dienes Michael reaction Thiacyanine dyes |
| spellingShingle |
2,3-dimethylbenzothiazol-3-ium iodide Electron-deficient 1H-benzo[f]chromenes Push-pull 1,3-dienes Michael reaction Thiacyanine dyes Demidov, O. P. Демидов, О. П. The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide |
| description |
The action of 2,3-dimethylbenzothiazol-3-ium iodide on 1H-benzo[f]chromenes containing an acceptor substituent in the β-position to the oxygen atom in the presence of triethylamine results in the opening of the pyran ring and the formation of [(2E,4Z)-4-(3-methyl-benzothiazol-2(3H)-ylidene)but-2-en-1-yl]naphthalen-2-ols. In the case of 1-aryl-2-nitro-1H-benzo[f]chromenes, 3-methyl-2-[(1E,3Z)-3-(3-methylbenzothiazol-2(3H)-ylidene)prop-1-en-1-yl]benzothiazol-3-ium iodide was isolated. The resulting compounds containing the
merocyanine chromophore are of interest as dyes and fluorescent labels. |
| format |
Статья |
| author |
Demidov, O. P. Демидов, О. П. |
| author_facet |
Demidov, O. P. Демидов, О. П. |
| author_sort |
Demidov, O. P. |
| title |
The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide |
| title_short |
The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide |
| title_full |
The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide |
| title_fullStr |
The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide |
| title_full_unstemmed |
The reactions of electron-deficient 1Н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide |
| title_sort |
reactions of electron-deficient 1н-benzo[f]chromenes with 2,3-dimethylbenzothiazol-3-ium iodide |
| publishDate |
2023 |
| url |
https://dspace.ncfu.ru/handle/20.500.12258/22265 |
| work_keys_str_mv |
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| _version_ |
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