Photoinduced synthesis of fluorinated dibenz[b,e]azepines via radical triggered cyclization.

Photoinduced synthesis of fluorinated dibenz[b,e]azepines via radical triggered cyclization.

Qi, Xu-Kuan;Zhang, Hong;Pan, Zi-Tong;Liang, Rong-Bin;Zhu, Can-Ming;Li, Jing-Hong;Tong, Qing-Xiao;Gao, Xue-Wang;Wu, Li-Zhu;Zhong, Jian-Ji;
Chemical communications (Cambridge, England) 2019
197
qi2019photoinducedchemical

Abstract

A simple, mild and efficient approach to access fluorinated dibenz[b,e]azepines via visible-light photoredox catalysis is presented. Inexpensive and commercially available fluoroalkyl anhydrides in concert with pyridine N-oxide are employed as the source of the fluoroalkyl radicals. A one-pot process involving the trifluoroacetylation of unprotected secondary benzyl amines followed by radical cyclization could also afford the desired fluorinated dibenz[b,e]azepines.

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ID: 26450
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26450
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10.1039/c9cc04977k
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