Stereoselective Synthesis of Tetrahydroquinolines via Asymmetric Domino Reaction Catalyzed by a Recyclable Ionic‐Liquid‐Supported Bifunctional Tertiary Amine Научная публикация
| Журнал |
European Journal of Organic Chemistry
ISSN: 1434-193X , E-ISSN: 1099-0690 |
||||
|---|---|---|---|---|---|
| Вых. Данные | Год: 2018, Том: 2018, Номер: 48, Страницы: 7000-7008 Страниц : 9 DOI: 10.1002/ejoc.201801423 | ||||
| Авторы |
|
||||
| Организации |
|
Реферат:
The most recyclable ionic liquid-supported bifunctional tertiary amine–squaramide organocatalyst for the asymmetric domino reaction has been found. Over this catalyst, ortho-aminochalcones protected with Tosyl or Nosyl groups underwent the aza-Michael/Michael domino reaction with nitroolefins to afford corresponding 2,3,4-trisubstituted tetrahydroquinolines as single diastereomers in nearly quantitative yield with up to 99 % ee. The catalyst was readily separated from the reaction mixture via a simple centrifugation/decantation workup and 19 times reused in the catalytic reaction without noticeable conversion or enantioselectivity reduction. The N-nosylated products proved their synthetic value for pharmacology given their facile conversion to fused pirrolidino-tetrahydroquinolines of high diastreomeric and enantiomeric purity via successive deprotection and reductive amination.
Библиографическая ссылка:
Tukhvatshin R.S.
, Kucherenko A.S.
, Nelyubina Y.V.
, Zlotin S.G.
Stereoselective Synthesis of Tetrahydroquinolines via Asymmetric Domino Reaction Catalyzed by a Recyclable Ionic‐Liquid‐Supported Bifunctional Tertiary Amine
European Journal of Organic Chemistry. 2018. V.2018. N48. P.7000-7008. DOI: 10.1002/ejoc.201801423 WOS Scopus OpenAlex
Stereoselective Synthesis of Tetrahydroquinolines via Asymmetric Domino Reaction Catalyzed by a Recyclable Ionic‐Liquid‐Supported Bifunctional Tertiary Amine
European Journal of Organic Chemistry. 2018. V.2018. N48. P.7000-7008. DOI: 10.1002/ejoc.201801423 WOS Scopus OpenAlex
Идентификаторы БД:
| Web of science: | WOS:000454532300021 |
| Scopus: | 2-s2.0-85057470305 |
| OpenAlex: | W2898790346 |