Rh‐Catalyzed Annulation of ortho‐C−H Bonds of 2‐Arylimidazoles with 1,4,2‐Dioxazol‐5‐ones toward 5‐Arylimidazo[1,2‐c]quinazolines

A Rh‐catalyzed unique and direct approach for constructing a series of 5‐arylimidazo[1,2‐c]quinazolines in moderate to excellent yields from simple and readily available 2‐arylimidazoles and 3‐phenyl‐1,4,2‐dioxazol‐5‐ones was described. This procedure proceeds with sequential ortho‐C−H bond amidatio...

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Veröffentlicht in:	Advanced synthesis & catalysis 2018-03, Vol.360 (6), p.1111-1115
Hauptverfasser:	Wu, Xiaopeng, Sun, Song, Xu, Shengbo, Cheng, Jiang
Format:	Artikel
Sprache:	eng
Schlagworte:	amidation annulation Chemical reactions dioxazolones Hydrogen bonds Organic chemistry quinazolines Rhodium catalysis
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container_title	Advanced synthesis & catalysis
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description	A Rh‐catalyzed unique and direct approach for constructing a series of 5‐arylimidazo[1,2‐c]quinazolines in moderate to excellent yields from simple and readily available 2‐arylimidazoles and 3‐phenyl‐1,4,2‐dioxazol‐5‐ones was described. This procedure proceeds with sequential ortho‐C−H bond amidation and cyclization, which represents a facile and straightforward pathway to access such frameworks.
doi_str_mv	10.1002/adsc.201701331
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subjects	amidation annulation Chemical reactions dioxazolones Hydrogen bonds Organic chemistry quinazolines Rhodium catalysis
title	Rh‐Catalyzed Annulation of ortho‐C−H Bonds of 2‐Arylimidazoles with 1,4,2‐Dioxazol‐5‐ones toward 5‐Arylimidazo[1,2‐c]quinazolines
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