Visible-Light-Promoted and EDA Complex-Driven [4 + 2] Annulation for the Construction of Naphtho[1′,2′:4,5]imidazo[1,2‑a]pyridines

A green visible-light-promoted and electron donor–acceptor (EDA) complex-driven synthetic strategy for the construction of value-added naphtho[1′,2′:4,5]imidazo[1,2-a]pyridines from 2-arylimidazo[1,2-a]pyridines with Z-α-bromocinnamaldehydes has been accomplished under photocatalyst- and trans...

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Veröffentlicht in:	Organic letters 2024-03, Vol.26 (12), p.2365-2370
Hauptverfasser:	Feng, Wanting, Chen, Ziren, Xue, Fei, Zhang, Zuozhi, Wang, Bin, Zhang, Yonghong, Xia, Yu, Jin, Weiwei, Wu, Shaofeng, Liu, Chenjiang
Format:	Artikel
Sprache:	eng
Schlagworte:	aromatic compounds pyridines value added
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container_title	Organic letters
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creator	Feng, Wanting Chen, Ziren Xue, Fei Zhang, Zuozhi Wang, Bin Zhang, Yonghong Xia, Yu Jin, Weiwei Wu, Shaofeng Liu, Chenjiang
description	A green visible-light-promoted and electron donor–acceptor (EDA) complex-driven synthetic strategy for the construction of value-added naphtho[1′,2′:4,5]imidazo[1,2-a]pyridines from 2-arylimidazo[1,2-a]pyridines with Z-α-bromocinnamaldehydes has been accomplished under photocatalyst- and transition-metal-free conditions. This efficient annulation approach provides a new and straightforward pathway for the annulative π-extension of imidazo[1,2-a]pyridine-based aromatics. Moreover, the sustainable methodology exhibits simple operation, a wide range of substrates, benign conditions, and good functional group compatibility.
doi_str_mv	10.1021/acs.orglett.4c00233
format	Article
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subjects	aromatic compounds pyridines value added
title	Visible-Light-Promoted and EDA Complex-Driven [4 + 2] Annulation for the Construction of Naphtho[1′,2′:4,5]imidazo[1,2‑a]pyridines
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