Issue 23, 2023

Synthesis of 4-aryl-3,4-dihydrocoumarins and 4-aryl-4H-chromenes via Er(OTf)3-catalyzed cascade reactions of p-quinone methides with 1,3-dicarbonyl compounds

Abstract

The Er(OTf)3-catalyzed cascade cyclization reaction of para-quinone methides (p-QMs) with various 1,3-dicarbonyl compounds has been developed, which efficiently constructed a series of versatile 4-aryl-3,4-dihydrocoumarins and 4-aryl-4H-chromenes. Herein, we not only propose a novel cyclization strategy of p-QMs, but also provide an easy access to structurally diverse coumarins and chromenes.

Graphical abstract: Synthesis of 4-aryl-3,4-dihydrocoumarins and 4-aryl-4H-chromenes via Er(OTf)3-catalyzed cascade reactions of p-quinone methides with 1,3-dicarbonyl compounds

Supplementary files

Article information

Article type
Paper
Submitted
05 Apr 2023
Accepted
23 May 2023
First published
26 May 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 15942-15946

Synthesis of 4-aryl-3,4-dihydrocoumarins and 4-aryl-4H-chromenes via Er(OTf)3-catalyzed cascade reactions of p-quinone methides with 1,3-dicarbonyl compounds

X. Bao, W. Yu, L. Wang, X. Dong, G. Wang, W. Chen, F. Li and D. Chen, RSC Adv., 2023, 13, 15942 DOI: 10.1039/D3RA02267F

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