Synthesis of Zwitterionic 4-Hydroxycoumarin Derivatives through a Unique Reaction of 4-Hydroxycoumarins with p- Benzoquinone and Pyridine

Synthesis of Zwitterionic 4-Hydroxycoumarin Derivatives through a Unique Reaction of 4-Hydroxycoumarins with p- Benzoquinone and Pyridine

A unique reaction of 4-hydroxycoumarins with p-benzoquinone and pyridine was found, and through the reaction, six zwitterionic 4-hydroxycoumarin derivatives were synthesized. The structures of these compounds were determined by IR, MS(ESI), 1H NMR, 13C NMR, and single-crystal X-ray diffraction studi...

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Veröffentlicht in:Organic letters 2004-12, Vol.6 (26), p.4853-4855
Hauptverfasser: Zhang, Sheng-Ling, Huang, Zhi-Shu, An, Lin-Kun, Bu, Xian-Zhang, Ma, Lin, Li, Yue-Ming, Chan, Albert S. C, Gu, Lian-Quan
Format: Artikel
Sprache:eng
Schlagworte:
4-Hydroxycoumarins - chemical synthesis
4-Hydroxycoumarins - chemistry
Benzoquinones - chemistry
Magnetic Resonance Spectroscopy - methods
Magnetic Resonance Spectroscopy - standards
Models, Molecular
Molecular Structure
Pyridines - chemistry
Reference Standards
Sensitivity and Specificity
Spectrometry, Mass, Electrospray Ionization - methods
Spectrophotometry, Infrared - methods
Stereoisomerism
X-Ray Diffraction
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Zusammenfassung:A unique reaction of 4-hydroxycoumarins with p-benzoquinone and pyridine was found, and through the reaction, six zwitterionic 4-hydroxycoumarin derivatives were synthesized. The structures of these compounds were determined by IR, MS(ESI), 1H NMR, 13C NMR, and single-crystal X-ray diffraction studies.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol048109p