A mild, palladium-catalyzed C–H activation enables direct, sustainable synthesis of 2-arylquinolines from simple allyl amines, with up to 64% yield; green chemistry metrics highlight its superior atom economy and reduced environmental impact compared to conventional methods.
The text approaches two Porto philosophical tradition personalities: the poet Guerra Junqueiro and the writer Dalila Pereira da Costa. The works of both authors join the same concern: the description of Portuguese cultural identity and its relation with Christian tradition. Junqueiro remains in a rationalistic perspective while Dalila develops a deep orthodox mystical experience.; O texto pretende fazer uma apr...