Carbocatalytic Cascade Synthesis of Polysubstituted Quinolines from Aldehydes and 2-Vinyl Anilines

Autor: Tom Wirtanen, Mikko K. Mäkelä, Juho Helaja, Martin Nieger, Tao Hu, Kiia Malinen, Anna Lenarda, Michele Melchionna, Juulia Talvitie, Evgeny Bulatov
Přispěvatelé: Makela, M. K., Bulatov, E., Malinen, K., Talvitie, J., Nieger, M., Melchionna, M., Lenarda, A., Hu, T., Wirtanen, T., Helaja, J., Department of Chemistry, Doctoral Programme in Chemistry and Molecular Sciences, Helsinki Institute of Sustainability Science (HELSUS), Juho Pekka Helaja / Principal Investigator
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Popis: Oxidized active carbon (oAC) catalyses the formation of polysubstituted quinolines from o-vinyl anilines and aldehydes. The reaction proceeds in a cascade manner through condensation, electrocyclization and dehydrogenation, and gives access to a wide range of quinolines with alkyl and/or aryl substituents as demonstrated with 40 examples. The metal-free catalytic procedure allows a heterogeneous protocol for the synthesis of various polysubstituted quinolines. The mechanistic studies imply that both the acid and quinoidic groups in oAC are integral for the catalytic manifold. (Figure presented.).
Databáze: OpenAIRE