Synlett 2024; 35(15): 1807-1812
DOI: 10.1055/a-2229-1963
letter

Modular Synthesis of 4-Acylquinolines via Cycloaddition of 1,3-Enynes and Nitrosoarenes

Xiao Li
,
Chenxin Diao
,
Wangqing Kong
This research was supported by the National Natural Science Foundation of China (22171215), Hubei Provincial Outstanding Youth Fund (2022CFA092) and Basic and Applied Basic Research Foundation of Guangdong Province (2022A1515010246 and 2022A1515110113).


Abstract

Herein, we disclose a FeBr2-promoted cycloaddition of readily available 1,3-enynes and nitrosoarenes, providing a promising platform for the synthesis of privileged 4-acylquinoline scaffolds. This simple, one-pot process is characterized by high atom-economy, broad substrate-scope, and excellent functional-group tolerance. A possible reaction mechanism was proposed, involving processes such as [4+2] cycloaddition, ring opening, aromatization, and dehydroaromatization.

Supporting Information



Publication History

Received: 15 November 2023

Accepted after revision: 13 December 2023

Accepted Manuscript online:
13 December 2023

Article published online:
05 February 2024

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