Brønsted Acid‐Catalyzed Straightforward Synthesis of Benzo[ b ]carbazoles from 2,3‐Unsubstituted Indoles
2014; Wiley; Volume: 356; Issue: 2-3 Linguagem: Inglês
10.1002/adsc.201300868
ISSN1615-4169
AutoresAnisley Suárez, Patricia García‐García, Manuel A. Fernández‐Rodríguez, Roberto Sanz,
Tópico(s)Axial and Atropisomeric Chirality Synthesis
ResumoAbstract Described is a general and efficient synthesis of valuable benzo[ b ]carbazoles by Brønsted acid‐catalyzed reactions between simple C‐2,C‐3‐unsubstituted indoles and ortho ‐[α‐(hydroxy)benzyl]benzaldehyde acetals. Highly selective migration processes are involved as key steps in the overall cascade sequence that involves the one‐pot formation of two new bonds and a cycle in a regioselective fashion. magnified image
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