Facile synthesis of pyrrolo[2,1-a]isoquinolines by domino reaction of 1-aroyl-3,4-dihydroisoquinolines with conjugated ketones, nitroalkenes and nitriles.

Autor: Astakhov, Grigorii S., Shigaev, Rinat R., Borisova, Tatiana N., Ershova, Anastasia A., Titov, Alexander A., Varlamov, Alexey V., Voskressensky, Leonid G., Matveeva, Maria D.
Zdroj: Molecular Diversity; Nov2021, Vol. 25 Issue 4, p2441-2446, 6p
Abstrakt: A convenient protocol for the synthesis of 5,6-dihydropyrrolo[2,1-a]isoquinolines with various electron-withdrawing substituents at C-2 atom is described. This approach is based on the two-component domino reaction of 1-aroyl-3,4-dihydroisoquinolines with α,β-unsaturated ketones, nitroalkenes and acrylonitrile. Depending on the selected substrates, the reaction was performed in TFE under reflux or under microwave irradiation. Only for the two examples, a transition metal catalyst was used. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index