One‐Pot Gold/Acid‐Catalyzed Synthesis of Indolo[1,2‐a]quinolin‐5(6H)‐ones from 1‐(2‐Ethynylphenyl)‐1H‐indoles-Reference-Cited by-同舟云学术

One‐Pot Gold/Acid‐Catalyzed Synthesis of Indolo[1,2‐a]quinolin‐5(6H)‐ones from 1‐(2‐Ethynylphenyl)‐1H‐indoles

Published:2024-04-08 Issue:23 Volume:27 Page:
ISSN:1434-193X
Container-title:European Journal of Organic Chemistry
language:en
Short-container-title:Eur J Org Chem

Author:

Brambilla Elisa¹^ORCID,Gugiatti Mariaclara¹,Rizzato Silvia²^ORCID,Abbiati Giorgio¹,Pirovano Valentina¹^ORCID

Affiliation:

1. Dipartimento di Scienze Farmaceutiche, Sezione di Chimica Generale e Organica “A. Marchesini Università degli Studi di Milano Via G. Venezian 21 20133 Milano Italy

2. Dipartimento di Chimica Università degli Studi di Milano Via C. Golgi 19 20133 Milano Italy

Abstract

AbstractWe present a method for the synthesis of substituted indolo[1,2‐a]quinoline‐5(6H)‐ones starting from 1‐(2‐ethynylphenyl)‐1H‐indoles. The transformation involves gold‐catalyzed oxidation of the triple bond followed by acid‐promoted intramolecular cyclization at the indole C2 position. Demonstrating noteworthy versatility, the reaction tolerates a wide array of substituents on the indole core and proceeds in good to excellent yields (up to 93 %).

Publisher

Wiley

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