Synthesis of spiropyrans and merocyanine dyes based on 1-benzothieno[3,2-b]pyrrole Научная публикация
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Russian Chemical Bulletin
ISSN: 1573-9171 , E-ISSN: 1066-5285 |
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| Вых. Данные | Год: 2009, Том: 58, Номер: 2, Страницы: 380-386 Страниц : 7 DOI: 10.1007/s11172-010-0019-1 | ||
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Реферат:
A convenient method was developed for the synthesis of photochromic spiropyrans and merocyanine dyes of the 1-benzothieno[3,2-b]pyrroline series based on the conventional condensation of the analog of Fischer’s salt, viz., 1,2,3,3-tetramethyl-3H-[1]benzothieno-[3,2-b]pyrrolium triflate, with aromatic 2-hydroxyaldehydes. Unlike Fischer’s salt, benzothieno-pyrrolium salts readily undergo the [1,5]-sigmatropic rearrangement giving rise to 2H-[1]benzo-thieno[3,2-b]pyrrole derivatives. The latter compounds were used for the synthesis of the first representatives of the previously unknown spiro compounds and merocyanine dyes. The long-wavelength maxima of merocyanines of the 2H-benzothienopyrrole series are batho-chromically shifted by more than 100 nm with respect to the absorption maxima of the “classical” 3H-benzothienopyrrole analogs.
Библиографическая ссылка:
Shimkin A.A.
, Shirinian V.Z.
, Mailyan A.K.
, Krayushkin M.M.
Synthesis of spiropyrans and merocyanine dyes based on 1-benzothieno[3,2-b]pyrrole
Russian Chemical Bulletin. 2009. V.58. N2. P.380-386. DOI: 10.1007/s11172-010-0019-1 WOS Scopus OpenAlex
Synthesis of spiropyrans and merocyanine dyes based on 1-benzothieno[3,2-b]pyrrole
Russian Chemical Bulletin. 2009. V.58. N2. P.380-386. DOI: 10.1007/s11172-010-0019-1 WOS Scopus OpenAlex
Идентификаторы БД:
| Web of science: | WOS:000275907000001 |
| Scopus: | 2-s2.0-77950238502 |
| OpenAlex: | W2032721718 |