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Synthesis 2009(7): 1190-1194
DOI: 10.1055/s-0028-1083371
DOI: 10.1055/s-0028-1083371
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
Reaction of N-Nonaflylbenzotriazole with Silyl Enol Ethers
Weitere Informationen
Received
9 October 2008
Publikationsdatum:
11. Februar 2009 (online)
Publikationsverlauf
Publikationsdatum:
11. Februar 2009 (online)
Abstract
N-Nonaflylbenzotriazole reacts with trimethylsilyl enol ethers in tetrahydrofuran at room temperature under tetrabutylammonium fluoride catalysis to afford o-(nonafluorobutylsulfonamido)phenylhydrazones in 19-82% yield. N-Nonaflylbenzotriazole reacts twice with the less sterically demanding silyl enol ethers to afford the corresponding o-(nonafluorobutylsulfonamido)phenylazo enols in 41-75% yield.
Key words
benzotriazole - hydrazones - ring opening - silyl enol ether
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