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钌催化吩噻嗪-3-甲醛的C-H键活化与环化反应：便捷合成双发射材料

Ruthenium-catalyzed C-H bond activation and annulation of phenothiazine-3-carbaldehydes: facile access to dual-emission materials.

作者信息

Liu Junxiang, Wang Kangmin, Wan Liqiu, Yang Xianhui, Li Bijin

机构信息

Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China

出版信息

Chem Sci. 2025 Jan 16;16(7):3107-3113. doi: 10.1039/d4sc07825j. eCollection 2025 Feb 12.

DOI:10.1039/d4sc07825j
PMID:39829976
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11740230/
Abstract

Reported herein is the first example of a ruthenium-catalyzed C-H activation/annulation of phenothiazine-3-carbaldehydes to construct structurally diverse pyrido[3,4-]phenothiazin-3-iums with dual-emission characteristics. Novel organic single-molecule white-light materials based on pyrido[3,4-]phenothiazin-3-iums with dual-emission and thermally activated delayed fluorescence (TADF) characteristics have been developed for the first time herein. Furthermore, the dual-emission molecule could be fabricated as water-dispersed NPs, which could be applied in two-channel emission intensity ratio imaging to observe the intercellular structure and can specifically target the cell membrane.

摘要

本文报道了首例钌催化吩噻嗪-3-甲醛的C-H活化/环化反应，以构建具有结构多样性且具有双发射特性的吡啶并[3,4-]吩噻嗪-3-鎓盐。本文首次开发了基于具有双发射和热活化延迟荧光（TADF）特性的吡啶并[3,4-]吩噻嗪-3-鎓盐的新型有机单分子白光材料。此外，这种双发射分子可以制成水分散性纳米颗粒，可应用于双通道发射强度比成像以观察细胞间结构，并能特异性靶向细胞膜。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/56b7/11822417/415af57a8e04/d4sc07825j-f6.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/56b7/11822417/415af57a8e04/d4sc07825j-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/56b7/11822417/97565f730388/d4sc07825j-s1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/56b7/11822417/35a2f11f0cf3/d4sc07825j-f1.jpg
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