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Silver Trifluoroacetate Promoted Cycloisomerization of 3,5-diyn-1-ones: the direct observation of Ag intermediate and their application in synthesis
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A simple and mild method for silver trifluoroacetate promoted cycloisomerization of 3,5-diyn-1-ones provided 2-alkynyl furans, which can be further transformed into alkyne hydration or furan-based polycyclic products was developed. It was found that tri-fluoroacetate anion plays a crucial role in the cycloisomerization reaction, and the intermediate Ag-furan complex was first directly observed by 1H-NMR spectroscopy and mass spectrometry.
Title: Silver Trifluoroacetate Promoted Cycloisomerization of 3,5-diyn-1-ones: the direct observation of Ag intermediate and their application in synthesis
Description:
A simple and mild method for silver trifluoroacetate promoted cycloisomerization of 3,5-diyn-1-ones provided 2-alkynyl furans, which can be further transformed into alkyne hydration or furan-based polycyclic products was developed.
It was found that tri-fluoroacetate anion plays a crucial role in the cycloisomerization reaction, and the intermediate Ag-furan complex was first directly observed by 1H-NMR spectroscopy and mass spectrometry.
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