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Trimerization of 3-Trimethylsilyl-2-propyn-1-al into 4-Trimethylsilylethynyl-4H-pyran-3,5-dicarbaldehyde

✍ Scribed by A. S. Medvedeva; A. V. Khatashkeev; A. V. Mareev; A. V. Afonin; I. A. Ushakov


Book ID
106523645
Publisher
SP MAIK Nauka/Interperiodica
Year
2005
Tongue
English
Weight
479 KB
Volume
41
Category
Article
ISSN
1070-4280

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## Abstract Starting from 4‐hydroxycoumarins 4 and 1‐aryl‐2‐(dimethylaminomethyl)prop‐2‐en‐1‐ones 2 the title compounds 6 have been synthesized. The reaction is initiated by addition of the C‐3 carbon atom of 4‐hydroxycoumarin to the enone double bond of the Mannich base, subsequent deamination aff