Synthesis and characterization of a new fluorescent Zwitterionic spirocyclic meisenheimer complex of 1,3,5-trinitrobenzene

被引:22
作者
Al-Kaysi, RO
Guirado, G
Valente, EJ
机构
[1] Univ Rochester, Dept Chem, Rochester, NY 14627 USA
[2] CNRS, CEMES, GNS, F-31055 Toulouse, France
[3] Mississippi Coll, Dept Chem & Biochem, Clinton, MS 39058 USA
关键词
nucleophilic aromatic substitution; zwitterions; Meisenheimer complexes; fluorescence spectroscopy; picric acid;
D O I
10.1002/ejoc.200400260
中图分类号
O62 [有机化学];
学科分类号
070303 [有机化学]; 081704 [应用化学];
摘要
In this communication we present the first stable zwitterionic spirocyclic Meisenheimer compound based on an N --> N rearrangement in the reaction between picric acid and diisopropylcarbodiimide. The structure was confirmed by single-crystal X-ray diffraction. Furthermore, this compound exhibits interesting fluorescence properties (phi(f) = 0.4-0.5), not shared with a typical Meisenheimer complex, and a fluorescence lifetime (tau = 9.1 ns) in dichloromethane. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
引用
收藏
页码:3408 / 3411
页数:4
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