Efficient synthesis of cyclic amidine-based fluorophores via 6π-electrocyclic ring closure.

Efficient synthesis of cyclic amidine-based fluorophores via 6π-electrocyclic ring closure.
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通过 6Π电环闭环有效合成基于环脒的荧光团

DOI:
10.1039/d0sc00798f
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发表时间:
2020-03-13
期刊:
影响因子:
8.4
通讯作者:
Hong L
Hong L
中科院分区:
化学1区
文献类型:
--
作者:
Li G;Zhao M;Xie J;Yao Y;Mou L;Zhang X;Guo X;Sun W;Wang Z;Xu J;Xue J;Hu T;Zhang M;Li M;Hong L

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Novel 10π-electron cyclic amidines with excellent fluorescence properties were synthesized by a general and efficient 6π-electrocyclic ring closure of ketenimine and imine starting from N-sulfonyl triazoles and arylamines. The photophysical properties of cyclic amidine fluorophores have been studied in detail and have shown good properties of a large Stokes shift, pH insensitivity, low cytotoxicity and higher photostability, which have great potential for biological imaging. Furthermore, this novel fluorophore was successfully applied to the localization of the NK-1 receptor in living systems. Novel 10π-electron cyclic amidines with excellent fluorescence properties were synthesized by a general and efficient 6π-electrocyclic ring closure of ketenimine and imine starting from N-sulfonyl triazoles and arylamines.
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